Metalworking Fluid Condition Monitoring
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1 Metalworking Fluid Condition Monitoring Microbial Contamination Monitoring The QGO-M Value Proposition F. J. Passman, PhD, STLE Fellow BCA, Inc., Princeton NJ USA
2 QGO-M Value Proposition The Economics of Speed ATP v. Culture data Case study
3 The Economics of Speed Assumptions: MWF cost/l 1.00 ( $5.00/gal) Normal dragout/turnover = 5%/d Waste hauling cost/l 0.5 ( $2.50/gal) System size 38 m 3 (10,000 gal) Cost/part = 1.00 ( $1.30) Price/part = 2.00 ( $2.60) Normal parts/h = 100 Cost/tool 500 ( $650) Normal #parts/tool = 500 Normal production = 12h/d x 5d/wk x 48wk/a = 2,880h/a
4 The Economics of Speed Normal Operations Item Cost ( ) MWF D&R 114,000 Normal drag 399,000 Fluid total 513,000 Production Parts/y 576,000 Tools/y 576,000 Production total 1,152,000 Total Costs 1,665,000 Gross Revenues 2,880,000 Net Revenues 1,215,000 Biodeterioration Impact Item Cost ( ) MWF D&R 228,000 Normal drag 638,400 Fluid total 866,400 Production Parts/y 518,400 Tools/y 691,200 Production total 1,209,600 Total 2,076,000 Gross Revenues 2,592,000 Net Revenues 516,000
5 /a The Economics of Speed Basis: 10% productivity 20% tool life Δ=58% = 700,000 /a Normal Inadequate Microbial Control
6 /a The Economics of Speed Culture Δ CM cost = 340% (45,000 /a) Assume 1% risk of D&R QGO-M 1% risk of D&R QGO-M Culture Cost/site visit
7 [ATP] cell -1 constant; no growth or metabolism needed after sample 1fg active cell -1 1,000 cells pg -1 1CFU ml -1 Every active cell measured! +28 more generations visible colony 10 9 cells generation time 1h 1.5d to visible colony X X no reproduction no colony generation time 4h 5d to visible colony Slow growing & injured active cells missed!
8 1. Not all microbes like the same food 2. Different types of microbes have different oxygen needs Obligate aerobes (require oxygen) Obligate anaerobes (can t tolerate oxygen) Facultative anaerobes (grow with or without oxygen)
9 3. Microbes with doubling times >4h won t be seen until after 5 days incubation; most tests stop at 3 days T G = 0.5h T G = 4h Day 1 Day 5 Day 1 Day 5 a Day 5 b Under any one set of growth conditions cell per 1,000 Will be detected as a colony
10 Cased Study ATP MWF Field Evaluation 11 Sumps Range of MWF ATP B/F CATALASE ALKALINITY ph RI [MWF] [TRIAZINE]
11 Case Study ATP MWF Field Evaluation Fluid Type Machine Type Sump Capacity (L) Emusifiable Oil Shaver 210 Vertical Broach 760 Semi-synthetic Hobbing 190 Grinding 870 Blanchard 570 Synthetic Lathe 660 Broach 950 Radial Drill a 20 Radial Drill a 40 Radial Drill b 950 Radial Drill b 950
12 Case Study ATP MWF Field Evaluation Parameter [ATP] Catalase Activity Log CFU B/mL Brix [Triazine] Alkalinity ph [ATP] (0.08) (0.33) (0.27) (0.38) Catalase Activity (0.05) ) Log CFU B/mL 1.00 (0.05) (0.40) (0.20) (0.37) Brix (0.12) [Triazine] Alkalinity ph 1.00 The critical value for the correlation coefficient, r = at P=0.05 and at P=0.01
13 QGO-M Value Proposition The Economics of Speed Reduce end-user annual fluid management costs Increase plant productivity Cut site visits in half Reduce risk of untimely corrective action Reduce service provider fluid management costs Increase productivity & profitability
14 QGO-M Value Proposition The Economics of Speed ATP v. Culture data ATP data in <5 min v. 2 to 10 days ATP captures all active microbes; culture is selective
15 QGO-M Value Proposition The Economics of Speed ATP v. Culture data Case study ATP covaried with Culture [Biocide] [MWF], ph & alkalinity Fast reliable data better system control
16 aqua-tools BCA, Inc M1cRoe1AL CONTAMINATION CONTROL SERIVCES - LUMINULTRA -suthtught AQUA-TOOLS 26, rue Charles Edouard Jeanneret Poissy - France Tel : + 33 (0) Fax : + 33 (0) [email protected] Technical question Scientîfic support Marc RAYMOND Camille l!llavot Time to reorder Order information Alex.indra OUFRENNE [email protected] [email protected]
17 LuminUltra Technologies Resources Visit for product information. Visit academy.luminultra.com for application training. View our blog at lumicast.luminultra.com. Visit for application note, video, publication
18 Thank you for your attention! Biodeterioration Control Associates, Inc. Resources Microbiological Audit MWF, Lubricant & MWF System Articles & Papers
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