Contract Laboratory Program (CLP)

In 1980, Congress addressed the problem of cleaning up abandoned and inactive dump sites by enacting the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and the Superfund Amendments and Reauthorization Act (SARA). These acts mandated the clean-up of the worst abandoned or inactive waste sites in the nation as well as leaking underground storage tanks. An outgrowth of this legislation was the Contract Laboratory Program (CLP) which was established to perform Superfund analyses. CLP methods are designed for both volatile and semi-volatile compounds. The most recent EPA Target Compounds are listed in the OLM 04.1 and OLM 04.2 Statement of Work. Table of Contents Volatiles pages CLP Target Compound List & Auxillary Standards 98-99 CLP OLM 4.1 and OLM 4.2 Volatiles 100 CLP Low Concentration Target Compound List 101 Semi-Volatiles Priority Pollutant Standards 102-103 CLP Target Compound List & Auxillary Standards 104 CLP Semi-Volatiles 105-106 CLP GPC Solutions 106 CLP Low Concentration Target Compound List 107 CLP OLM 04.1 and OLM 04.2 Semi-Volatiles 108 Pesticides & PCBs CLP Pesticides & PCBs 109-110 CLP Pesticides & PCBs Working Level 111-113 Continuing Calibration Check (CCC) Each CLP Standard is furnished with complete documentation: AccuDATA...All the Analytical Documentation required for Standards used in CLP Analysis Quantitative analysis of the product by comparison to a separately prepared Standard. Target concentration analytically determined to be within a 95% confidence interval. A chromatogram of the product lot with analytes listed by order of elution and instrumental parameters shown. Certificate showing actual gravimetric/volumetric weights, purities and analyte CAS #'s. The technical and QC support you've come to expect from AccuStandard. No fluffy reports. Just the information that is required in an easy to utilize format. Complete & Concise Data... at no extra Cost! AccuStandard Documentation No Charge Competitors $ 20 to $ 100 Extra 97

Volatiles VOC Selected Target Compound Solutions Volatile Target Compounds List (TCL) CLP-022-SET Part A $ 60 / set of 2 x 1 ml (includes CLP-022-PART-A and CLP-022-PART-B) CLP-022-PART-A 1 x 1 ml 0.5 mg/ml each in MeOH 29 comps. Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane Dichloromethane 1,2-Dichloroethane 1,1-Dichloroethylene cis-1,2-dichloroethylene trans-1,2-dichloroethylene 1,2-Dichloropropane cis-1,3-dichloropropene * trans-1,3-dichloropropene ** Ethylbenzene 1,1,2,2-Tetrachloroethane Tetrachloroethene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Vinyl chloride m-xylene p-xylene * cis (1.06 x conc.) ** trans (0.94 x conc.) Volatiles Volatile Target Compounds List (TCL) Gases CLP-022G 0.2 mg/ml each in MeOH 1 x 1 ml CLP-022G-PAK 0.2 mg/ml each in MeOH 5 x 1 ml CLP-022G-10X 2.0 mg/ml each in MeOH 1 x 1 ml CLP-022G-10X-PAK 2.0 mg/ml each in MeOH 5 x 1 ml Bromomethane Chloroethane Ketones CLP-022K 0.2 mg/ml each in MeOH 1 x 1 ml CLP-022K-10X 2.0 mg/ml each in MeOH 1 x 1 ml Acetone 2-Butanone Chloromethane Vinyl chloride 2-Hexanone 4-Methyl-2-pentanone Part B CLP-022-PART-B 1 x 1 ml 0.5 mg/ml each in MeOH 8 comps. Acetone 2-Butanone Carbondisulfide 2-Hexanone 4-Methyl-2-pentanone Styrene Vinyl acetate o-xylene Volatile Target Compounds List (TCL) CLP-022 1 x 1 ml 0.2 mg/ml each in MeOH 37 comps. Acetone Bromodichloromethane Bromoform Bromomethane 2-Butanone Carbondisulfide Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane Dichloromethane 1,2-Dichloroethane 1,1-Dichloroethylene cis-1,2-dichloroethylene trans-1,2-dichloroethylene 1,2-Dichloropropane cis-1,3-dichloropropene * trans-1,3-dichloropropene ** Ethylbenzene 2-Hexanone 4-Methyl-2-pentanone Styrene 1,1,2,2-Tetrachloroethane Tetrachloroethene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Vinyl acetate Vinyl chloride m-xylene o-xylene p-xylene * cis (1.06 x conc.) ** trans (0.94 x conc.) CLP-022-R2 1 x 1 ml 0.2 mg/ml each in MeOH 3 Acetone Bromodichloromethane Bromoform Bromomethane 2-Butanone Carbondisulfide Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Dibromochloromethane 1,1-Dichloroethane Dichloromethane 1,2-Dichloroethane 1,1-Dichloroethylene cis-1,2-dichloroethylene trans-1,2-dichloroethylene 1,2-Dichloropropane cis-1,3-dichloropropene * trans-1,3-dichloropropene ** Ethylbenzene 2-Hexanone 4-Methyl-2-pentanone Styrene 1,1,2,2-Tetrachloroethane Tetrachloroethene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Vinyl chloride m-xylene o-xylene p-xylene * cis (1.06 x conc.) ** trans (0.94 x conc.) Technical Note For your convenience, AccuStandard is reintroducing the CLP Volatile Target Compound List in a single easy-to-use solution in two versions. CLP-022, a 37 component solution, is available at a concentration of 0.2 mg/ml each in MeOH. For CLP labs following SOW OLM01.8 (August 1994), CLP-022-R2 contains the 36 analytes of current interest (Vinyl acetate was removed from the TCL PLM03.1). CLP-022-SET will continue to be available as an alternate source of reference material. 98 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Volatiles (continued) Auxiliary Standards Volatile Calibration Check Compounds (CCC) CLP-020 0.2 mg/ml each in MeOH 1 x 1 ml CLP-020-PAK 0.2 mg/ml each in MeOH/ 5 x 1 ml CLP-020-10X 2.0 mg/ml each in MeOH 1 x 1 ml CLP-020-10X-PAK 2.0 mg/ml each in MeOH 5 x 1 ml Chloroform 1,1-Dichloroethene 1,2-Dichloropropane Volatile System Performance Check Compounds (SPCC) CLP-021 0.2 mg/ml each in MeOH 1 x 1 ml CLP-021-PAK 0.2 mg/ml each in MeOH 5 x 1 ml CLP-021-10X 2.0 mg/ml each in MeOH CLP-021-10X-PAK 2.0 mg/ml each in MeOH 5 x 1 ml 5 comps. Bromoform Chlorobenzene Chloromethane Hexadecane Extraction Volatiles Ethylbenzene Vinyl chloride 1,1-Dichloroethane 1,1,2,2-Tetrachloroethane CLP-BTEX 0.2 mg/ml each in MeOH 1 x 1 ml CLP-BTEX-PAK 0.2 mg/ml each in MeOH 5 x 1 ml CLP-BTEX-10X 2.0 mg/ml each in MeOH 1 x 1 ml CLP-BTEX-10X-PAK 2.0 mg/ml each in MeOH 5 x 1 ml Ethylbenzene CLP-001B 1 x 1 ml 1.0 mg/ml each in MeOH 2 comps. n-decane n-nonane Volatiles m-xylene o-xylene p-xylene Instrument Performance Check Solution CLP-004 25 µg/ml in MeOH 1 x 1 ml CLP-004-PAK 25 µg/ml in MeOH 5 x 1 ml CLP-004-10X 250 µg/ml in MeOH 1 x 1 ml CLP-004-10X-PAK 250 µg/ml in MeOH 5 x 1 ml CLP-004-100X 2500 µg/ml in MeOH 1 x 1 ml CLP-004-100X-PAK 2500 µg/ml in MeOH / 5 x 1 ml Purgeable Surrogate Standard CLP-PS 0.25 mg/ml each in MeOH 1 x 1 ml CLP-PS-PAK 0.25 mg/ml each in MeOH / 5 x 1 ml CLP-PS-4X 1.0 mg/ml each in MeOH 1 x 1 ml CLP-PS-4X-PAK 1.0 mg/ml each in MeOH 5 x 1 ml CLP-PS-10X 2.5 mg/ml each in MeOH 1 x 1 ml CLP-PS-10X-PAK 2.5 mg/ml each in MeOH 5 x 1 ml p-bromofluorobenzene 1,2-Dichloroethane-d 4 -d 8 Purgeable Internal Standard CLP-PI-0.25X 0.25 mg/ml each in MeOH / 1 x 1 ml CLP-PI-0.25X-PAK 0.25 mg/ml each in MeOH 5 x 1 ml CLP-PI 1.0 mg/ml each in MeOH 1 x 1 ml CLP-PI-PAK 1.0 mg/ml each in MeOH 5 x 1 ml CLP-PI-2.5X 2.5 mg/ml each in MeOH 1 x 1 ml CLP-PI-2.5X-PAK 2.5 mg/ml each in MeOH 5 x 1 ml Bromochloromethane Chlorobenzene-d 5 1,4-Difluorobenzene Purgeable Internal/Surrogate Standard CLP-PIPS 1 x 1 ml CLP-PIPS-PAK 5 x 1 ml 2.5 mg/ml each in MeOH Bromochloromethane p-bromofluorobenzene Chlorobenzene-d 5 1,2-Dichloroethane-d 4 1,4-Difluorobenzene -d 8 Purgeable Organic Matrix Spiking Solution CLP-003-R 0.25 mg/ml each in MeOH 1 x 1 ml CLP-003-R-PAK 0.25 mg/ml each in MeOH 5 x 1 ml CLP-003-R-10X 2.5 mg/ml each in MeOH 1 x 1 ml CLP-003-R-10X-PAK 2.5 mg/ml each in MeOH 5 x 1 ml Chlorobenzene 1,1-Dichloroethene Trichloroethene 5 comps. p-bromofluorobenzene 99

Volatiles (continued) AccuStandard s Research and Development team continues to introduce the most comprehensive and the highest quality standards for the latest Contract Laboratory Program (CLP) statement of work. The R & D team designed a new set of volatile standards (listed below) along with a complete semi-volatile series (see pages 88-89) which meets OLM 04.1, and also can be used for OLM 04.2 released in August of 1999. CLP OLM 04.1 & 04.2 Volatiles CLP OLM 04.1 & 04.2 - Volatiles Set CLP-VOC-KIT1 Kit includes: CLP-022-R3 M-601B CLP-022K-10X CLP-BTEX CLP-PS-10X CLP-PI-2.5X CLP-PIPS CLP-003R-10X CLP-004-10X NEW $ 200 / 9 x 1 ml CLP 04.1 & 04.2 Screening Mix CLP-BTEX CLP-BTEX-PAK $ 120 / 5 x 1 ml 0.2 mg/ml each in MeOH CLP-BTEX-10X CLP-BTEX-10X-PAK $ 120 / 5 x 1 ml 2.0 mg/ml each in MeOH CLP OLM 04.1 & 04.2 - Volatile Target Compound List CLP-022-R3 $ 40 / 1x 1 ml CLP-022-R3-PAK $ 160 / 5 x 1 ml 200 µg/ml in MeOH 40 comps. Bromodichloromethane Bromoform Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroform 1,2-Dibromo-3-chloropropane Cyclohexane Dibromochloromethane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-dichloroethene trans-1,2-dichloroethene Dichloromethane Gases M-601B M-601B-PAK $ 90 / 5 x 1 ml 0.2 mg/ml each in MeOH Bromomethane Chloromethane Chloroethane Dichlorodifluoromethane Ketones CLP-022K 0.2 mg/ml each in MeOH CLP-022K-10X 2.0 mg/ml each in MeOH Acetone 2-Butanone NEW 1,2-Dichloropropane cis-1,3-dichloropropene trans-1,3-dichloropropene Ethylbenzene Isopropylbenzene Methyl acetate Methylcyclohexane MtBE Styrene 1,1,2,2-Tetrachloroethane Tetrachloroethene 1,2,4-Trichlorobenzene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene 1,1,2-Trichloro-1,2,2-trifluoroethane m-xylene p-xylene o-xylene Trichlorofluoromethane Vinyl chloride 2-Hexanone 4-Methyl-2-pentanone Ethylbenzene Purgeable Surrogate Standard CLP-PS-10X CLP-PS-10X-PAK 2.5 mg/ml each in MeOH p-bromofluorobenzene 1,2-Dichloroethane-d 4 -d 8 Purgeable Internal Standard CLP-PI-2.5X CLP-PI-2.5X-PAK 2.5 mg/ml each in MeOH Bromochloromethane Chlorobenzene-d 5 1,4-Difluorobenzene Purgeable Internal/Surrogate Standard CLP-PIPS $ 40 / 1 x 1 ml CLP-PIPS-PAK $ 160 / 5 x 1 ml 2.5 mg/ml each in MeOH Bromochloromethane p-bromofluorobenzene Chlorobenzene-d 5 1,2-Dichloroethane-d 4 1,4-Difluorobenzene -d 8 Purgeable Organic Matrix Spiking Solution CLP-003-R-10X CLP-003-R-10X-PAK $ 80 / 5 x 1 ml 2.5 mg/ml each in MeOH 5 comps. Chlorobenzene 1,1-Dichloroethene m-xylene o-xylene p-xylene Trichloroethene Instrument Performance Check Solution CLP-004-10X CLP-004-10X-PAK 250 µg/ml in MeOH CLP-004-100X CLP-004-100X-PAK 2500 µg/ml in MeOH $ 40 / 5 x 1 ml $ 40 / 5 x 1 ml p-bromofluorobenzene 100 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Volatiles (continued) Low Concentration SOW (10/92) Volatile Target Compounds Mixture CLP-022-LC $ 70 / 1 x 1 ml 0.2 mg/ml each in MeOH (except at 1.0 mg/ml) 42 comps. Acetone Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Dibromochloromethane 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,1-Dichloroethane Dichloromethane 1,2-Dichloroethane 1,1-Dichloroethylene cis-1,2-dichloroethylene trans-1,2-dichloroethylene 1,2-Dichloropropane cis-1,3-dichloropropene * trans-1,3-dichloropropene ** Ethylbenzene 2-Hexanone 4-Methyl-2-pentanone Styrene 1,1,2,2-Tetrachloroethane Tetrachloroethene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Vinyl chloride o-xylene m-xylene p-xylene Organic Analysis of Water * cis (1.06 x conc.) ** trans (0.94 x conc.) Internal Standard Mixture CLP-LC-IS 25 µg/ml each in MeOH CLP-LC-IS-PAK 25 µg/ml each in MeOH CLP-LC-IS-10X 0.25 mg/ml each in MeOH CLP-LC-IS-10X-PAK 0.25 mg/ml each in MeOH CLP-LC-IS-100X 2.5 mg/ml each in MeOH CLP-LC-IS-100X-PAK 2.5 mg/ml each in MeOH Chlorobenzene-d 5 1,4-Difluorobenzene 1,4-Dichlorobenzene-d 4 Tuning Solution / Surrogate Standard Mixture CLP-004 25 µg/ml in MeOH CLP-004-PAK 25 µg/ml in MeOH $ 40 / 5 x 1 ml CLP-004-10X 0.25 mg/ml in MeOH CLP-004-10X-PAK 0.25 mg/ml in MeOH $ 40 / 5 x 1 ml CLP-004-100X 2.5 mg/ml in MeOH CLP-004-100X-PAK 2.5 mg/ml in MeOH $ 40 / 5 x 1 ml p-bromofluorobenzene Laboratory Control Sample Spiking Solution CLP-LCS-V CLP-LCS-V-PAK 0.2 mg/ml each in MeOH 12 comps. Bromoform Carbon tetrachloride 1,2-Dibromoethane 1,4-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane cis-1,3-dichloropropene * Tetrachloroethene 1,1,2-Trichloroethane Trichloroethene Vinyl chloride * may contain trace amounts of trans isomer AccuStandard Exclusive AccuPAKs 101

Priority Pollutant Standards For Calibration of Capillary GC/MS The EPA procedures call for fused silica capillary column analysis of priority pollutants. AccuStandard has assembled the following mixtures to be used in calibrating this analytical system. These mixtures are highly concentrated to aid in the establishment of response factors. Base/Neutrals - Mix #1 Z-014A $ 50 / 1 x 1 ml Z-014A-PAK $ 200 / 5 x 1 ml 1 Base/Neutrals - Mix #2 Z-014B $ 50 / 1 x 1 ml Z-014B-PAK $ 200 / 5 x 1 ml 1 s Mixture Z-014H Z-014H-PAK $ 120 / 5 x 1 ml 11 comps. 4-Bromophenylphenyl ether Butyl benzyl phthalate bis(2-chloroethoxy)methane bis(2-chloroethyl)ether bis(2-chloroisopropyl)ether 4-Chlorophenylphenyl ether Diethyl phthalate Dimethyl phthalate Di-n-butyl phthalate Di-n-octyl phthalate bis(2-ethylhexyl)phthalate N-Nitrosodimethylamine N-Nitrosodi-n-propylamine N-Nitrosodiphenylamine Azobenzene 2-Chloronaphthalene 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 2,4-Dinitrotoluene 2,6-Dinitrotoluene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone Nitrobenzene 1,2,4-Trichlorobenzene 4-Chloro-3-methylphenol 2-Chlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2-Methyl-4,6-dinitrophenol 2-Nitrophenol 4-Nitrophenol 2,4,6-Trichlorophenol Toxic Substances - Mix #1 Z-014D Z-014D-PAK Benzoic acid 2-Methylphenol 4-Methylphenol 2,4,5-Trichlorophenol Toxic Substances - Mix #2 Z-014E Z-014E-PAK $ 120 / 5 x 1 ml 8 comps. Aniline Benzyl alcohol 4-Chloroaniline Dibenzofuran 2-Methylnaphthalene 2-Nitroaniline 3-Nitroaniline 4-Nitroaniline Polynuclear Aromatic Hydrocarbon Mixture Z-014G $ 60 / 1 x 1 ml Z-014G-PAK $ 240 / 5 x 1 ml : (1:1) Acenaphthene Acenaphthylene Anthracene Benzo[a]anthracene Benzo[a]pyrene Benzo[b]fluoranthene Benzo[g,h,i]perylene Benzo[k]fluoranthene Chrysene Dibenz[a,h]anthracene Fluoranthene Fluorene Indeno[1,2,3-cd]pyrene Naphthalene Phenanthrene Pyrene 1 Polynuclear Aromatic Hydrocarbon Mixture Z-014G-R $ 60 / 1 x 1 ml Z-014G-R-PAK $ 240 / 5 x 1 ml : (1:1) Acenaphthene Acenaphthylene Anthracene Benzo[a]anthracene Benzo[a]pyrene Benzo[b]fluoranthene Benzo[g,h,i]perylene Benzo[k]fluoranthene Carbazole Chrysene Dibenz[a,h]anthracene Fluoranthene Fluorene Indeno[1,2,3-cd]pyrene Naphthalene Phenanthrene Pyrene 17 comps. Benzidine Mixture Z-014F Z-014F-PAK $ 120 / 5 x 1 ml 2.0 mg/ml each in MeOH 2 comps. Benzidine 3,3'-Dichlorobenzidine Internal Standards Mixture Z-014J $ 75 / 1 x 1 ml Z-014J-PAK $ 250 / 5 x 1 ml 4.0 mg/ml each in CH 2 Acenaphthene-d 10 Chrysene-d 12 1,4-Dichlorobenzene-d 4 Naphthalene-d 8 Perylene-d 12 Phenanthrene-d 10 102 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Priority Pollutant Standards For Calibration of Capillary GC/MS Complete Priority Pollutant Sets Z-014R-SET $ 350 / set of 9 x 1 ml Set includes: Z-014A Base/Neutrals - Mix #1 Z-014B Base/Neutrals - Mix #2 Z-014C Pesticides - Mix #1 Z-014D Toxic Substances - Mix #1 Z-014E Toxic Substances - Mix #2 Z-014F Benzidine Mix Z-014G-R PAH Mix Z-014H s Mix Z-014J Internal Standard Mix Z-014R-1-SET $ 350 / set of 9 x 1 ml Set includes: Z-014A Base/Neutrals - Mix #1 Z-014B Base/Neutrals - Mix #2 Z-014C-R Pesticides - Mix #2 Z-014D Toxic Substances - Mix #1 Z-014E Toxic Substances - Mix #2 Z-014F Benzidine Mix Z-014G-R PAH Mix Z-014H s Mix Z-014J Internal Standard Mix Z-014R-2-SET $ 230 / set of 7 x 1 ml Set includes: Z-014A Base/Neutrals - Mix #1 Z-014B Base/Neutrals - Mix #2 Z-014D Toxic Substances - Mix #1 Z-014E Toxic Substances - Mix #2 Z-014F Benzidine Mix Z-014G PAH Mix Z-014H s Mix Z-014R-3-SET $ 230 / set of 7 x 1 ml Set includes: Z-014A Base/Neutrals - Mix #1 Z-014B Base/Neutrals - Mix #2 Z-014D Toxic Substances - Mix #1 Z-014E Toxic Substances - Mix #2 Z-014F Benzidine Mix Z-014G-R PAH Mix Z-014H s Mix Contact your distributor! Pesticides - Mix #1 Z-014C $ 75 / 1 x 1 ml Z-014C-PAK $ 300 / 5 x 1 ml 2.0 mg/ml each in : Hexane (1:1) 1 α-bhc β-bhc γ-bhc δ-bhc 4,4'-DDD 4,4'-DDE 4,4'-DDT Endosulfan I Endosulfan II aldehyde Heptachlor Heptachlor epoxide Pesticides - Mix #2 Z-014C-R $ 95 / 1 x 1 ml Z-014C-R-PAK $ 380 / 5 x 1 ml 2.0 mg/ml each in : Hexane (1:1) 20 comps. α-bhc β-bhc γ-bhc δ-bhc α-chlordane γ-chlordane 4,4'-DDD 4,4'-DDE 4,4'-DDT Endosulfan I Endosulfan II aldehyde ketone Heptachlor Heptachlor epoxide Pesticides - Mix #3 Z-014C-R2 $ 85 / 1 x 1 ml Z-014C-R2-PAK $ 340 / 5 x 1 ml 2.0 mg/ml each in : Hexane (1:1) 18 comps. α-bhc β-bhc γ-bhc δ-bhc 4,4'-DDD 4,4'-DDE 4,4'-DDT Endosulfan I Endosulfan II aldehyde ketone Heptachlor Heptachlor epoxide Tuning Standards for EPA Methods EPA Method 625 GC/MS Calibration Standards M-625-TS $ 40 / 1 x 1 ml M-625-TS-PAK $ 160 / 5 x 1 ml 50 µg/ml each in CH 2 CLP-TS CLP-TS-PAK 50 µg/ml in CH 2 $ 80 / 5 x 1 ml M-625C Individual Solutions M-625C-# $ 80 / set of 5 x 1 ml $ 20 / each Benzidine p,p'-ddt DFTPP Perfluorokerosene At stated conc. in CH 2 (1) Benzidine (50 µg/ml) (2) (25 µg/ml) (3) Decafluorotriphenylphosphine (25 µg/ml) (4) Benzidine (50 µg/ml) + DFTPP (25 µg/ml) (5) (25 µg/ml) + DFTPP (25 µg/ml) 103

Base/Neutral & Acid Composite Mixtures For CLP Semi-Volatiles Analysis CLP Target List CLP-HC-BN-SET 2 x 1 ml / CLP-HC-BN-SET-PAK 5 x 2 x 1 ml Set includes CLP-HC-BN-R and Z-014F $ 180 / CLP-HC-BN-R 2.0 mg/ml each in : CH 2 : AcCN (2:2:1) 4 $ 160 / 1 x 1 ml Z-014F 2.0 mg/ml each in MeOH 2 comps. Base-Neutral Mixture CLP-HC-BN-R Acenaphthene Acenaphthylene Anthracene Azobenzene Benz[a]anthracene Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[g,h,i]perylene Benzo[a]pyrene 4-Bromophenyl phenyl ether Butyl benzyl phthalate bis(2-chloroethoxy)methane bis(2-chloroethyl)ether bis(2-chloroisopropyl)ether 2-Chloronaphthalene 4-Chlorophenyl phenyl ether Chrysene Dibenz[a,h]anthracene Di-n-butyl phthalate 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Diethyl phthalate Technical Note 4 Dimethyl phthalate 2,4-Dinitrotoluene 2,6-Dinitrotoluene Di-n-octyl phthalate bis(2-ethylhexyl)phthalate Fluoranthene Fluorene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Indeno[1,2,3-cd]pyrene Isophorone Naphthalene Nitrobenzene N-Nitrosodimethylamine N-Nitrosodiphenylamine N-Nitrosodi-n-propylamine Phenanthrene Pyrene 1,2,4-Trichlorobenzene Azobenzene was substituted for 1,2-Diphenyl-hydrazine since the 1,2-Diphenylhydrazine oxidizes to azobenzene under GC operating conditions. Technical Note The following composite mixtures were formulated to allow the flexibility of preparing a final semi-volatile mix to meet your laboratory's specific needs. CLP-HC-BN-SET contains 46 of the Base-Neutral analytes on the CLP semi-volatile Target List. These Base-Neutral analytes are now available in a two ampule set to extend the useful life of your stock calibration standards. CLP-HC-A contains the acidic compounds found in the CLP Target List. An additional composite mix can then be selected to complement your exact requirements for semi-volatile analysis. Acid Composite Mixture Additional Component Mixtures Benzidine Mixture Z-014F Benzidine 3,3'-Dichlorobenzidine 2 comps. CLP-HC-A $ 45 / 1 x 1 ml CLP-HC-A-PAK $ 180 / 5 x 1 ml 15 comps. Benzoic acid 4-Chloro-3-methylphenol 2-Chlorophenol o-cresol p-cresol 2,4-Dichlorophenol 2,4-Dimethylphenol 4,6-Dinitro-2-methylphenol 2,4-Dinitrophenol 2-Nitrophenol 4-Nitrophenol 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol Composite #1 Z-014E 8 comps. Composite #2 Z-014E-R 9 comps. Composite #3 Z-014E-R3 10 comps. Aniline Benzyl alcohol 4-Chloroaniline Dibenzofuran 2-Methylnaphthalene 2-Nitroaniline 3-Nitroaniline 4-Nitroaniline Aniline Benzyl alcohol 4-Chloroaniline Dibenzofuran 2-Methylnaphthalene 2-Nitroaniline 3-Nitroaniline 4-Nitroaniline Pyridine Aniline Benzyl alcohol Carbazole 4-Chloroaniline Dibenzofuran 2-Methylnaphthalene 2-Nitroaniline 3-Nitroaniline 4-Nitroaniline Pyridine AccuPAKs 104 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Base/Neutral & Acid Composite Mixtures For CLP Semi-Volatiles Analysis GC/MS Analysis of Semi-Volatiles Method Analytes Mixture CLP-TCLSV Benzoic acid Benzyl alcohol Calibration Check Compounds (CCC) CLP-011 Base/Neutrals N-Nitrosodimethylamine Base/Neutrals & Acids Matrix Standard Spiking Solutions CLP-007R-SET CLP-007R-PAK CLP-007-SET $ 35 / set of 2 x 1 ml (set includes CLP-011A & CLP-011B) CLP-011A 1 x 1 ml 7 comps. Acenaphthene Benzo[a]pyrene 1,4-Dichlorobenzene Di-n-octylphthalate Acids CLP-011B 1 x 1 ml 4-Chloro-3-methylphenol 2,4-Dichlorophenol 2-Nitrophenol Base/Neutrals Acids $ 35 / set of 2 x 1 ml (CLP-007A-1,-2) $ 140 / set of 5 x (2 x 1 ml) (CLP-007A-1,-2) $ 35 / set of 2 x 1 ml (CLP-007A,B) CLP-007-1 CLP-007A 1.0 mg/ml each in MeOH Acenaphthene 1,4-Dichlorobenzene 2,4-Dinitrotoluene N-Nitroso-di-n-propylamine CLP-007-2 1.5 mg/ml each in MeOH 5 comps. CLP-007B 2.0 mg/ml each in MeOH 5 comps. 2-Chlorophenol 4-Chloro-3-methylphenol 4-Nitrophenol Methods of Interest See M-8270, pages 198-205. Mix of additional compounds (EPA Method 8270C/D) in the latest Statement of Work. Hexachlorobutadiene Fluoranthene N-Nitroso-diphenylamine 2,4,6-Trichlorophenol Pyrene 1,2,4-Trichlorobenzene Internal Standards Mixture Z-014J $ 75 / 1 x 1 ml Z-014J-PAK $ 250 / 5 x 1 ml 4.0 mg/ml each in CH 2 Acenaphthene-d 10 Chrysene-d 12 1,4-Dichlorobenzene-d 4 Naphthalene-d 8 Perylene-d 12 Phenanthrene-d 10 System Performance Check Compounds (SPCC) CLP-010 0.2 mg/ml each in CH 2 CLP-010-10X 2,4-Dinitrophenol Hexachlorocyclopentadiene 4-Nitrophenol N-nitroso-di-n-propylamine Semi-Volatile Organic Extract Calibration (Screening Mix) CLP-009 0.1 mg/ml each in CH 2 CLP-009-10X 1.0 mg/ml each in CH 2 Di-n-octylphthalate Phenanthrene Initial Calibration Target Compounds List CLP-012 9 comps. Benzoic acid 2,4-Dinitrophenol 4,6-Dinitro-2-methylphenol 2-Nitroaniline 3-Nitroaniline Acid Surrogate Standard 4-Nitroaniline 4-Nitrophenol 2,4,5-Trichlorophenol CLP-AS CLP-AS-PAK $ 75 / 5 x 1 ml 2.0 mg/ml each in MeOH 2-Fluorophenol -d 5 Base/Neutrals Surrogate Standard 2,4,6-Tribromophenol CLP-BNS CLP-BNS-PAK $ 75 / 5 x 1 ml 1.0 mg/ml each in CH 2 2-Fluorobiphenyl Nitrobenzene-d 5 p-terphenyl-d 14 105

For CLP Semi-Volatiles Analysis August 1994 Statement of Work Acid Surrogate Standards CLP-029 2.0 mg/ml each in MeOH $ 35 / 1 x 1 ml CLP-029-PAK 2.0 mg/ml each in MeOH $ 140 / 5 x 1 ml CLP-029-0.75X 1.5 mg/ml each in MeOH $ 35 / 1 x 1 ml CLP-029-0.75X-PAK 1.5 mg/ml each in MeOH $ 140 / 5 x 1 ml 2-Chlorophenol-d 4 2-Fluorophenol Semi-Volatile Surrogate Mixture CLP-031R CLP-031R-PAK At stated conc. in MeOH : CH 2 (1:1) -d 5 2,4,6 Tribromophenol $ 75 / 1 x 1 ml $ 300 / 5 x 1 ml 8 comps. Base/Neutral Surrogate Standard CLP-030 $ 35 / 1 x 1 ml CLP-030-PAK $ 140 / 5 x 1 ml 1.0 mg/ml each in CH 2 1,2-Dichlorobenzene-d 4 2-Fluorobiphenyl Nitrobenzene-d 5 p-terphenyl-d 14 Instrument Performance Check Solution CLP-033 CLP-033-PAK 0.25 mg/ml in CH 2 DFTPP $ 80 / 5 x 1 ml 2-Chlorophenol-d 4 1,2-Dichlorobenzene-d 4 2-Fluorobiphenyl 2-Fluorophenol (1.5 mg/ml) (1.5 mg/ml) Nitrobenzene-d 5 -d 5 p-terphenyl-d 14 2,4,6 Tribromophenol (1.5 mg/ml) (1.5 mg/ml) GC/MS Tuning Solution CLP-TS CLP-TS-PAK $ 80 / 5 x 1 ml 50 µg/ml in CH 2 Perfluorokerosene Semi-Volatile Surrogate Mixture CLP-031-R2 $ 75 / 1 x 1 ml CLP-031-R2-PAK $ 300 / 5 x 1 ml 2000 µg/ml each in CH 2 8 comps. 2-Chlorophenol-d 4 1,2-Dichlorobenzene-d 4 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d 5 -d 5 p-terphenyl-d 14 2,4,6-Tribromophenol Technical Note AccuStandard formulated this Semi-volatile Surrogate Solution to maintain consistent surrogate concentrations with the analytes in each level of the calibration curve. GPC Solutions for Sample Clean-up Semi-Volatiles (Gel Permeation) Method 3640 GPC Calibration Solutions GPC Calibration Standard Solution CLP-027 CLP-027-PAK At stated conc. in CH 2 Corn Oil (250 mg/ml) Perylene bis(2-ethylhexyl)phthalate (10 mg/ml) Sulfur (2 mg/ml) 5 comps. (0.2 mg/ml) (0.8 mg/ml) CLP-008R Solution A CLP-008A 200 mg/ml in CH 2 Corn Oil $ 20 / set of 2 x 1 ml (set includes CLP-008A & $ 15 / 1 x 1 ml 8/94 SOW OLM03.1 CLP-027-R2 CLP-027-R2-PAK At stated conc. in CH 2 Corn Oil bis(2-ethylhexyl)phthalate (250 mg/ml) (5 mg/ml) (1 mg/ml) Perylene Sulfur 5 comps. (0.2 mg/ml) (0.8 mg/ml) Solution B CLP-008B-R $ 15 / 1 x 1 ml 4.0 mg/ml each in CH 2 2 comps. bis(2-ethylhexyl)phthalate 106 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Low Concentration SOW (10/92) for Organic Analysis of Water Low Concentration SOW Semi-Volatiles Base/Neutrals - Mix #1 Z-014A-LC $ 50 / 1 x 1 ml 1 Base/Neutrals - Mix 2 Z-014B-LC $ 50 / 1 x 1 ml 1 Base/Neutrals - Mix 3 Z-014K-LC $ 40 / 1 x 1 ml 8 comps. 4-Bromophenylphenyl ether Butyl benzyl phthalate bis(2-chloroethoxy)methane bis(2-chloroethyl)ether bis(2-chloroisopropyl)ether 4-Chlorophenylphenyl ether Diethyl phthalate Dimethyl phthalate Di-n-butyl phthalate Di-n-octyl phthalate bis(2-ethylhexyl)phthalate N-Nitrosodiphenylamine N-Nitrosodi-n-propylamine Polynuclear Aromatic Hydrocarbon Mix Z-014G $ 60 / 1 x 1 ml Z-014G-PAK $ 240 / 5 x 1 ml : (1:1) 1 4-Chloroaniline 2-Chloronaphthalene Dibenzofuran 3,3'-Dichlorobenzidine 2,4-Dinitrotoluene 2,6-Dinitrotoluene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone 2-Methylnaphthalene Nitrobenzene 1,2,4-Trichlorobenzene s Mixture 2,4-Dinitrophenol 2-Methyl-4,6-dinitrophenol 2-Nitroaniline 3-Nitroaniline 4-Nitroaniline 4-Nitrophenol 2,4,5-Trichlorophenol Technical Note 60 Target Compounds in these Five Mixtures designed to conveniently prepare initial and continuing calibration solutions. Z-014H-LC Z-014H-LC-PAK $ 120 / 5 x 1 ml 9 comps. Acenaphthene Acenaphthylene Anthracene Benzo[a]anthracene Benzo[a]pyrene Benzo[b]fluoranthene Benzo[g,h,i,]perylene Benzo[k]fluoranthene Chrysene Dibenzo[a,h]anthracene Fluoranthene Fluorene Indeno[1,2,3-cd]pyrene Naphthalene Phenanthrene Pyrene 4-Chloro-3-methylphenol 2-Chlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2-Methylphenol 4-Methylphenol 2-Nitrophenol 2,4,6-Trichlorophenol Tuning Solution M-625C-3-2X 50 µg/ml in CH 2 Decafluorotriphenylphosphine Internal Standard Z-014J-0.5X $ 50 / 1 x 1 ml Z-014J-0.5X-PAK SAVE 20% $ 200 / 5 x 1 ml Acenaphthene-d 10 Chrysene-d 12 1,4-Dichlorobenzene-d 4 Naphthalene-d 8 Perylene-d 12 Phenanthrene-d 10 Surrogate Standards CLP-LC-SS-1 $ 40 / 1 x 1 ml CLP-LC-SS-1-PAK $ 160 / 5 x 1 ml 2.0 mg/ml each in MeOH : CH 2 (1:4) 5 comps. 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d 5 CLP-LC-SS-2 CLP-LC-SS-2-PAK 6.0 mg/ml in MeOH 2,4,6-Tribromophenol -d 5 p-terphenyl-d 14 $ 40 / 5 x 1 ml 107

OLM 04.1 & 04.2 AccuStandard s Research and Development team continues to introduce the most comprehensive and highest quality Standards for the latest Contract Laboratory Program (CLP) statement of work. The R & D team designed a new set of volatile Standards (see page 100) along with a complete semi-volatile series (listed below) which meets OLM 04.1, and also can be used for OLM 04.2 released in August of 1999. CLP OLM 04.1 & 04.2 Semi-Volatiles CLP OLM 04.1 & 04.2 - Semi-Volatiles Set CLP-SVC-KIT2 Kit includes: CLP-HC-SV-R1 CLP-HC-SV-ADD CLP-HC-A-R5 CLP-BN-MS CLP OLM 04.1 & 04.2 - Base Neutrals CLP-HC-SV-R1 $ 115 / 1 x 1 ml 1000 µg/ml each in CH 2 : (3:1) 50 comps. Acenaphthene Acenaphthylene Acetophenone Anthracene Atrazine Benz[a]anthracene Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[g,h,i]perylene Benzo[a]pyrene Benzyl butyl phthalate Biphenyl 4-Bromophenyl phenyl ether Dibutyl phthalate e-caprolactam Carbazole 4-Chloroaniline bis(2-chloroethoxy)methane bis(2-chloroethyl)ether bis(2-chloroisopropyl)ether 2-Chloronaphthalene 4-Chlorophenyl phenyl ether Chrysene Dibenz[a,h]anthracene Dibenzofuran CLP-HC-SVR-SET 1000 µg/ml in CH 2 Cl Benzaldehyde CLP OLM 04.1 & 04.2- s 3,3 -Dichlorobenzidine Diethyl phthalate Dimethyl phthalate 2,4-Dinitrotoluene 2,6-Dinitrotoluene bis(2-ethylhexyl)phthalate Fluoranthene Fluorene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Indeno[1,2,3-cd]pyrene Isophorone 2-Methylnaphthalene Naphthalene 2-Nitroaniline 3-Nitroaniline 4-Nitroaniline Nitrobenzene N-Nitrosodi-n-propylamine N-Nitrosodiphenylamine Di-n-octyl phthalate Phenanthrene Pyrene CLP-HC-A-R5 $ 45 / 1 x 1 ml 2000 µg/ml each in CH 2 1 4-Chloro-3-methylphenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2-Chlorophenol 2-Methyl-4,6-dinitrophenol o-cresol CLP-009-10X CLP-033 CLP-007-2 CLP-031R Z-014J Z-014C-R p-cresol 2-Nitrophenol 4-Nitrophenol 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol CLP OLM 04.1 & 04.2- B/N Matrix Spike Solution $ 425 / 10 x 1 ml NEW NEW $ 20 / 3 x 1 ml NEW NEW CLP-BN-MS 1000 µg/ml each in MeOH Semi-Volatile Organic Extract Calibration (Screening Mix) CLP-009-10X 1.0 mg/ml each in CH 2 Di-n-octylphthalate Phenanthrene Acids Internal Standards Mixture Z-014J $ 75 / 1 x 1 ml Z-014J-PAK $ 250 / 5 x 1 ml 4.0 mg/ml each in CH 2 Acenaphthene-d 10 Chrysene-d 12 1,4-Dichlorobenzene-d 4 Naphthalene-d 8 Instrument Performance Check Solution CLP-033 CLP-033-PAK 0.25 mg/ml in CH 2 DFTPP CLP-007-2 1.5 mg/ml each in MeOH 5 comps 2-Chlorophenol 4-Chloro-3-methylphenol 4-Nitrophenol Semi-Volatile Surrogate Mixture CLP-031R CLP-031R-PAK At stated conc. in MeOH : CH 2 (1:1) 2-Chlorophenol-d 4 1,2-Dichlorobenzene-d 4 2-Fluorobiphenyl 2-Fluorophenol Pesticides - Mix #2 (1.5 mg/ml) (1.5 mg/ml) Perylene-d 12 Phenanthrene-d 10 $ 80 / 5 x 1 ml $ 75 / 1 x 1 ml $ 300 / 5 x 1 ml 8 comps. Z-014C-R $ 95 / 1 x 1 ml Z-014C-R-PAK $ 380 / 5 x 1 ml 2.0 mg/ml each in : Hexane (1:1) 20 comps. α-bhc β-bhc γ-bhc δ-bhc α-chlordane γ-chlordane 4,4'-DDD 4,4'-DDE 4,4'-DDT Endosulfan I Endosulfan II Nitrobenzene-d 5 -d 5 p-terphenyl-d 14 2,4,6 Tribromophenol aldehyde ketone Heptachlor Heptachlor epoxide (1.5 mg/ml) (1.5 mg/ml) Acenaphthene 2,4-Dinitrotoluene N-Nitrosodi-n-propylamine Pyrene 108 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Pesticide Mixtures Single Component Pesticide Mixtures CLP-018/019-10X $ 100 / set of 2 x 1 ml CLP-018-10X CLP-018-10X-PAK $ 55 / 1 x 1 ml $ 220 / 5 x 1 ml 11 comps. CLP-019-10X CLP-019-10X-PAK $ 60 / 1 x 1 ml $ 240 / 5 x 1 ml 12 comps.?-bhc p,p -DDT Dibutylchlorendate Endosulfan l (0.5 µg/ml) (2.0 µg/ml) (5.0 µg/ml) Endosulfan II aldehyde Heptachlor Heptachlor epoxide (2.0 µg/ml) (2.5 µg/ml) (10 µg/ml)? -BHC (0.5 µg/ml)?-bhc?-bhc? -Chlordane?-Chlordane p,p -DDD p,p -DDE Dibutylchlorendate ketone (2.0 µg/ml) (5.0 µg/ml) (2.0 µg/ml) (2.0 µg/ml) Pesticide Calibration Mixes Statement of Work 2/88 to 8/94 Mix A CLP-023R $ 100 / set of 2 x 1 ml (Mix A & Mix B) at any of listed concentrations $ 55 / 1 x 1 ml 11 comps. Working Level Standards & Continuing Calibration Check (CCC) Cat. No. CLP-023R CLP-023R-160X CLP-023R-30X CLP-023R-10X CLP-023R-4X Pesticide Surrogates Components (units in ng/ml) ( 4X ) ( 10X ) ( 30X ) ( 160X )? -BHC 50 200 500 1,500 8,000?-BHC 50 200 500 1,500 8,000 p,p -DDD 100 400 1,000 3,000 16,000 p,p -DDT 100 400 1,000 3,000 16,000 Decachlorobiphenyl 100 400 1,000 3,000 16,000 100 400 1,000 3,000 16,000 Endosulfan l 50 200 500 1,500 8,000 100 400 1,000 3,000 16,000 Heptachlor 50 200 500 1,500 8,000 500 2,000 5,000 15,000 80,000 50 200 500 1,500 8,000 Mix B CLP-024R $ 60 / 1 x 1 ml 1 CLP-032R $ 15 / 1 x 1 ml CLP-032R-PAK $ 60 / 5 x 1 ml 200 µg/ml each in Acetone 2 comps. Decachlorobiphenyl CLP-034 $ 15 / 1 x 1 ml CLP-034-PAK $ 60 / 5 x 1 ml 200 µg/ml each in Acetone 2 comps. Dibutylchlorendate CLP-PES-A CLP-PES-A-PAK $ 80 / 5 x 1 ml 200 µg/ml in Acetone Dibutylchlorendate CLP-024R Cat. No. CLP-024R-160X CLP-024R-30X CLP-024R-10X CLP-024R-4X Components (units in ng/ml) ( 4X ) ( 10X ) ( 30X ) ( 160X ) 50 200 500 1,500 8,000?-BHC 50 200 500 1,500 8,000?-BHC 50 200 500 1,500 8,000? -Chlordane 50 200 500 1,500 8,000?-Chlordane 50 200 500 1,500 8,000 p,p -DDE 100 400 1,000 3,000 16,000 Decachlorobiphenyl 100 400 1,000 3,000 16,000 Endosulfan ll 100 400 1,000 3,000 16,000 100 400 1,000 3,000 16,000 aldehyde 100 400 1,000 3,000 16,000 ketone 100 400 1,000 3,000 16,000 Heptachlor epoxide 50 200 500 1,500 8,000 50 200 500 1,500 8,000 109

Pesticides & PCBs Pesticides & Polychlorinated Biphenyls Evaluation Standard Mixture CLP-017 CLP-017-PAK (1 µg/ml) Dibutylchlorendate 4,4 -DDT (2 µg/ml) Florisil Cartridge Check Solution CLP-FC CLP-FC-PAK 100 µg/ml in Acetone 2,4,5-Trichlorophenol Pesticide Matrix Spiking Solutions CLP-026-R2 CLP-026-R2-PAK At stated conc. in Acetone (5 µg/ml) γ BHC (5 µg/ml) 4,4' DDT (10 µg/ml) Heptachlor CLP-026-R2-10X CLP-026-R2-10X-PAK At stated conc. in Acetone (50 µg/ml) γ BHC (50 µg/ml) Heptachlor 4,4' DDT (100 µg/ml) (100 µg/ml) High Conc. Pesticide Matrix Spiking Solutions For Water CLP-014-1000X CLP-014-1000X-PAK At stated conc. in MeOH (200 µg/ml) 4,4'-DDT (500 µg/ml) (500 µg/ml) (500 µg/ml) For Soil / Sediment CLP-016-1000X CLP-016-1000X-PAK At stated conc. in MeOH (2,000 µg/ml) 4,4'-DDT (5,000 µg/ml) (5,000 µg/ml) (1 µg/ml) (2 µg/ml) $ 40 / 5 x 1 ml $ 100 / 5 x 1mL (10 µg/ml) (10 µg/ml) ( 5 µg/ml) $ 100 / 5 x 1mL (100 µg/ml) (50 µg/ml) Heptachlor (200 µg/ml) Lindane (200 µg/ml) (5,000 µg/ml) Heptachlor (2,000 µg/ml) Lindane (2,000 µg/ml) Performance Evaluation Solution CLP-025 CLP-025-PAK α BHC β BHC γ BHC 4,4' DDT (1000 ng/ml) Resolution Mixture CLP-028 CLP-028-PAK γ Chlordane Endosulfan I p,p DDE (200 ng/ml) Decachlorobiphenyl (200 ng/ml) (200 ng/ml) Decachlorobiphenyl ketone Laboratory Control Sample Spiking Solution CLP-LCS-P-1000X CLP-LCS-P-1000X-PAK At stated conc. in Acetone γ-bhc (100 µg/ml) γ-chlordane (100 µg/ml) (200 µg/ml) 4,4'-DDE (200 µg/ml) (200 µg/ml) Heptachlor epoxide $ 45 / 1 x 1 ml $ 180 / 5 x 1 ml 8 comps. (200 ng/ml) (500 ng/ml) (2500 ng/ml) (200 ng/ml) $ 50 / 1 x 1 ml $ 200 / 5 x 1 ml 9 comps. (200 ng/ml) (200 ng/ml) (1000 ng/ml) (200 ng/ml) Multi-Component Analytes (Polychlorinated Biphenyls, Chlordane & Toxaphene) Each at 1,000 µg/ml in Hexane AccuPAK (5 x 1 ml) Aroclors # Cat. No. 1 ml Cat. No. PAK Aroclor 1016 C-216S-H-10X $ 15 C-216S-H-10X-PAK $ 60 Aroclor 1221 C-221S-H-10X $ 15 C-221S-H-10X-PAK $ 60 Aroclor 1232 C-232S-H-10X $ 15 C-232S-H-10X-PAK $ 60 Aroclor 1242 C-242S-H-10X $ 15 C-242S-H-10X-PAK $ 60 Aroclor 1248 C-248S-H-10X $ 15 C-248S-H-10X-PAK $ 60 Aroclor 1254 C-254S-H-10X $ 15 C-254S-H-10X-PAK $ 60 Aroclor 1260 C-260S-H-10X $ 15 C-260S-H-10X-PAK $ 60 Aroclor 1262 C-262S-H-10X $ 15 C-262S-H-10X-PAK $ 60 Aroclor 1268 C-268S-H-10X $ 15 C-268S-H-10X-PAK $ 60 Pesticides Chlordane P-017S-H-10X $ 19 P-017S-H-10X-PAK $ 60 Toxaphene P-093S-H-10X $ 19 P-093S-H-10X-PAK $ 60 Low Concentration SOW (10/92) for Organic Analysis of Water - Pesticides $ 35 / 1 x 1 ml $ 140 / 5 x 1 ml 7 comps. (200 µg/ml) (100 µg/ml) Technical Note Each ampule contains at least 120% of the stated volume of a solution, allowing easy transfer. Transfer the required amount using a clean calibration syringe. Excess solution can be stored in a tightly capped vial, but this is not recommended. AccuStandard cannot guarantee the integrity of the solution once the ampule has been opened. See the EPA method protocol for storage instructions. 110 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Pesticide Standards for CLP Continuing Calibration Check (CCC) at Working Levels AccuStandard s QC protocol provides assurance & confidence in CCC Working Level Standards: Each Calibration Set is prepared using raw materials which have been tested for chemical purity and identity by GC/MS. After checking the identity and purity of each analyte its concentration in the Calibration Solution is confirmed by rigorous analysis. All individual component responses in the Calibration Set are then plotted using least squares linear regression. The resultant line drawn through the data points must have a coefficient of correlation no less than 0.99. An independently prepared QC check standard, having a concentration at the midpoint is analyzed to verify the accruacy of the calibration curve. CLP-023R-CAL-SET Analyte: p,p -DDT µg/ml Cat. No. Lot No. Conc. Area CLP-023-R-WL 025-279 10 ng/ml 12334 CLP-023-R-WL-4X 025-278 40 ng/ml 48513 CLP-023-R-WL-16X 025-277 160 ng/ml 214379 M-8080-WL-25X Lot No. 025-340 TARGET VALUE 100 ANALYTICAL AREA 137012 ANALYTICAL VALUE 103.4 % DIFF. FROM TARGET 3.4% AccuStandard's QC protocol thus provides the end user with assurance when calibrating with CCC Standards. This extra level of confidence will allow your laboratory to concentrate on analyzing samples, rather than preparing calibration solutions. CLP-023R-CAL-SET Analyte: µg/ml Cat. No. Lot No. Conc. Area CLP-023-R-WL 025-279 10 ng/ml 20523 CLP-023-R-WL-4X 025-278 40 ng/ml 85767 CLP-023-R-WL-16X 025-277 160 ng/ml 375897 Documentation of our analysis are available upon request with order. Validated for You!! M-8080-WL-25X Lot No. 025-340 TARGET VALUE 100 ANALYTICAL AREA 227622 ANALYTICAL VALUE 98.1 % DIFF. FROM TARGET -1.9% Working Level Standards & Continuing Calibration Check (CCC) The AccuStandard CCC Product Line Improves Efficiency: Load the calibration curve Standards at the end of the day with your samples and working level check, and review a verified curve with your sample results the next day. No time wasted on Standard dilutions and less worry about your CCC meeting data quality objectives (DQOs). 111

Pesticide Standards for CLP Continuing Calibration Check (CCC) at Working Levels CLP Pesticide Curve CLP-023R-WL-16X CLP-023R-WL-4X CLP-023R-WL Cat. No. CLP-023R-CAL-SET CCC at Working Levels $ 50 / 3 x 1 ml 11 comps. Mix A Components (units in ng/ml) ( WL ) ( 4X ) ( 16X ) α-bhc 5 20 80 γ-bhc 5 20 80 p,p DDD 10 40 160 p,p DDT 10 40 160 Decachlorobiphenyl 10 40 160 10 40 160 Endosulfan l 5 20 80 10 40 160 Heptachlor 5 20 80 50 200 800 5 20 80 The Daily QC Standard is bulk-packaged in 3 convenient sizes to meet various laboratory requirements. Mix A Level 2 Daily QC Working Level (CCC) (for mid level curves) CLP-023R-WL-4X-10ML CLP-023R-WL-4X-25ML CLP-023R-WL-4X-100ML α-bhc γ-bhc p,p DDD p,p DDT Decachlorobiphenyl Endosulfan l Heptachlor $ 50 / 1 x 10 ml $ 75 / 1 x 25 ml $ 100 / 1 x 100 ml 11 comps. (200 ng/ml) CLP-024R-CAL-SET Cat. No. CLP-024R-WL-16X CLP-024R-WL-4X CLP-024R-WL $ 50 / 3 x 1 ml 1 Mix B Mix B Level 2 Daily QC Working Level (CCC) (for mid level curves) CLP-024R-WL-4X-10ML CLP-024R-WL-4X-25ML CLP-024R-WL-4X-100ML $ 50 / 1 x 10 ml $ 75 / 1 x 25 ml $ 100 / 1 x 100 ml 1 Components (units in ng/ml) ( WL ) ( 4X ) ( 16X ) 5 20 80 β-bhc 5 20 80 δ-bhc 5 20 80 α-chlordane 5 20 80 γ-chlordane 5 20 80 p,p DDE 10 40 160 Decachlorobiphenyl 10 40 160 Endosulfan ll 10 40 160 10 40 160 aldehyde 10 40 160 ketone 10 40 160 Heptachlor epoxide 5 20 80 5 20 80 β-bhc δ-bhc α-chlordane γ-chlordane p,p DDE Decachlorobiphenyl Endosulfan ll aldehyde ketone Heptachlor epoxide CCC at Working Levels Resolution Check Solution CLP-028-WL CLP-028-WL-10ML γ Chlordane (10 ng/ml) Endosulfan I (10 ng/ml) p,p DDE Decachlorobiphenyl Pesticide Matrix Spiking Solution CLP-026-R2-WL CLP-026-R2-WL-25ML CLP-026-R2-WL-50ML At stated conc. in Acetone (0.5 µg/ml) γ BHC (0.5 µg/ml) Heptachlor 4,4' DDT $ 45 / 1 x 10 ml 9 comps. ketone $ 10 / 1 x 1mL $ 50 / 1 x 25 ml $ 75 / 1 x 50 ml (0.5 µg/ml) Performance Evaluation Solution CLP-025-WL CLP-025-WL-10ML α BHC β BHC γ BHC 4,4' DDT (10 ng/ml) (10 ng/ml) (10 ng/ml) Pesticide Surrogate Mixtures Decachlorobiphenyl $ 45 / 1 x 10 ml 8 comps. (50 ng/ml) (250 ng/ml) PREP NOTES The addition of 1 ml of Surrogate / Spiking solution is sufficient to check the extraction efficiency and to verify spike recoveries for the analytical batch. CLP-032R-WL-0.2X-10ML CLP-032R-WL-0.2X-50ML $ 40 / 1 x 50 ml CLP-032R-WL-0.2X-100ML $ 60 / 1 x 100 ml 0.2 µg/ml each in Acetone 2 comps. Decachlorobiphenyl 112 Quality System is Certified to comply with the International ISO 9001 Quality Standard

Aroclor & GPC Standards for CLP Continuing Calibration Check (CCC) at Working Levels Aroclors at Working Levels Aroclors 1016/1260 with Surrogates CLP-216/260-WL CLP-216/260-WL-5ML CLP-216/260-WL-10ML Aroclor 1016 Decachlorobiphenyl Aroclor 1260 Aroclor 1221 with Surrogates CLP-221-WL CLP-221-WL-5ML CLP-221-WL-10ML $ 15 / 1 x 5 ml $ 15 / 1 x 5 ml Aroclor 1221 (200 ng/ml) Decachlorobiphenyl Aroclor 1248 with Surrogates CLP-248-WL CLP-248-WL-5ML CLP-248-WL-10ML Aroclor 1248 Decachlorobiphenyl Aroclor 1254 with Surrogates CLP-254-WL CLP-254-WL-5ML CLP-254-WL-10ML Aroclor 1254 Decachlorobiphenyl $ 15 / 1 x 5 ml $ 15 / 1 x 5 ml Aroclor 1232 with Surrogates CLP-232-WL CLP-232-WL-5ML CLP-232-WL-10ML Aroclor 1232 Decachlorobiphenyl $ 10 / 1 x1 ml $ 15 / 1 x 5 ml Working Level Standards & Continuing Calibration Check (CCC) Aroclor 1242 with Surrogates CLP-242-WL CLP-242-WL-5ML CLP-242-WL-10ML $ 15 / 1 x 5 ml Toxaphene with Surrogates P-093-WL-10X P-093-WL-10X-5ML P-093-WL-10X-10ML $ 15 / 1 x 5 ml Aroclor 1242 Decachlorobiphenyl (100 ng/ml Toxaphene Decachlorobiphenyl (500 ng/ml) Technical Note Profile of some Aroclor products may not always look the same, but the percent chlorine by weight will be. Sample Clean-up Solutions at Working Level GPC Calibration Solution CLP-027-WL-10ML At stated conc. in CH 2 $ 30 / 1 x 10 ml 5 comps. Florisil Cartridge Check Solution CLP-FC-WL-10ML 0.1 µg/ml in Acetone Corn Oil bis(2-ethylhexyl)phthalate CLP-027-R2-WL-10ML At stated conc. in CH 2 Corn Oil bis(2-ethylhexyl)phthalate (25 mg/ml) (0.2 mg/ml) (25 mg/ml) (0.5 mg/ml) (0.1 mg/ml) Perylene Sulfur GPC Calibration Solution for 8/94 SOW OLM03.1 Perylene Sulfur (0.02 mg/ml) (0.08 mg/ml) $ 25 / 1 x 10 ml 5 comps. (0.02 mg/ml) (0.08 mg/ml) AccuStandard provides the solutions to meet sample clean-up parameters! 2,4,5-Trichlorophenol GPC Calibration Check Solutions GPC-CC-A-WL-10ML At stated conc. in CH 2 (0.1 µg/ml) γ-bhc (Lindane) (0.1 µg/ml) 4,4'-DDT (0.2 µg/ml) (0.2 µg/ml) (0.2 µg/ml) Heptachlor (0.1 µg/ml) GPC-CC-B-WL-10ML $ 10 / 1 x 10 ml 0.2 µg/ml each in CH 2 2 comps. Aroclor 1016 Aroclor 1260 113