ASBESTOS CONTAINING MATERIALS (ACM) REFERENCE GUIDE

Transcription

1 ASBESTOS CONTAINING MATERIALS (ACM) REFERENCE GUIDE by Environmental Health & Safety Office January 2012 Page 1 of 38

2 ASBESTOS ON CAMPUS... 3 MAG BLOCK... 5 AIRCELL... 6 SWEATWRAP... 7 CAPOSITE... 8 PARGING CEMENT... 9 GASKET THERMAL SPRAYED-ON INSULATION THERMAL SPRAYED-ON INSULATION (ENCASED) ELECTRICAL WIRE SHEATH TEXTURED CEILING FINISHES COUNTER TOP CHALKBOARD ACOUSTIC CEILING TILES ASBESTOS CEMENT BOARD/PIPING PLASTER FINISHES TILE MORTAR VINYL SHEET FLOORING VINYL FLOOR TILES DUFF ROBLIN SOUND BAFFLING OFF WHITE PAPER PRODUCT VERMICULITE FIRE DOORS TAR PRODUCTS AND ADHESIVES DRYWALL JOINT COMPOUND TERRAZZO SURFACES ACTIVITIES FOR TYPE I OR LOW RISK WORK ACTIVITIES FOR TYPE II OR MODERATE RISK WORK STANDARD TYPE II PERSONAL PROTECTION EQUIPMENT LABELING OF MECHANICAL ROOMS January 2012 Page 2 of 38

3 The following is a summary of the common forms of ACM found at the University of Manitoba. Included is information on where these materials are generally located on campus, their friability classification and the level of precautions required when working with such materials. Refer to the University Asbestos Management Program manual for specific asbestos work procedures. The information provided below is of a general nature and should not be considered inclusive of all existing materials or conditions at the University. ASBESTOS ON CAMPUS Asbestos is the general name given to a group of naturally occurring silica minerals that are mined for commercial purposes. The most common forms include Chrysotile and Amosite, the lesser known forms include Crocidolite, Tremolite, Anthophyllite and Actinolite. Asbestos has been used extensively as a component in over 3000 building materials throughout the 1900 s. It was incorporated into many materials in order to increase their fire resistance, chemical resistance, durability and flexibility. Founded in 1877, the University of Manitoba has undergone several stages of construction and renovation both at the Fort Garry Campus and Bannatyne Campus. Asbestos containing materials (ACM) are known to be present, in one or more forms, within all buildings constructed prior to Inhalation of airborne asbestos fibers is the main hazard attributed and linked to several forms of lung diseases. Typically asbestos fibers range January 2012 Page 3 of 38

4 from 0.11 to 0.24 micrometers (1/1000 th of a millimeter) and thus have the potential to remain airborne for several hours. An asbestos-containing material will only release airborne fibers when subjected to a physical disturbance. The likelihood of an ACM to release airborne fibers is directly related to its friability and condition. Materials considered friable can be easily reduced to dust by moderate hand pressure. A non-friable material is bound in a matrix, typically resin or cement, which inhibits the release of fibers. The condition of an ACM also may determine the potential to become airborne. Special consideration is required when planning or undertaking renovations and building maintenance where asbestos is known or suspected to be present. January 2012 Page 4 of 38

5 MAG BLOCK Description: Friable white, brown, pink or grey pre-formed block. Location: Found on various mechanical equipment and systems including, but not limited to, straight lengths of piping, air handling units, hot water tanks, boilers. Work Procedures: If material is not confirmed asbestos free, at minimum, Type II precautions for the repair of damaged material or the removal of less than one square meter of material within an established Type II hoarding or Glovebag. January 2012 Page 5 of 38

6 AIRCELL Description: Friable grey or white corrugated paper. Location: Found on straight lengths of mechanical piping. ACM Frequency: Always asbestos containing Work Procedures: At minimum, Type II precautions for the repair of damaged material or the removal of less than one square meter of material within an established Type II hoarding or Glovebag January 2012 Page 6 of 38

7 SWEATWRAP Description: Semi-friable white, grey or brown layered paper. Location: Found on straight lengths of mechanical insulation. Work Procedures: If material is not confirmed asbestos free, at minimum, Type II precautions for the repair of damaged material or the removal of less than one square meter of material within an established Type II hoarding or Glovebag January 2012 Page 7 of 38

8 CAPOSITE Description: Friable pre-formed grey or brown straight lengths of compressed fibers. Location: Found on straight lengths of mechanical insulation. ACM Frequency: Always asbestos containing Work Procedures: At minimum, Type II precautions for the repair of damaged material or the removal of less than one square meter of material within an established Type II hoarding or Glovebag January 2012 Page 8 of 38

9 PARGING CEMENT Description: Friable grey or white material with the appearance of dry mud Location: Found at elbows and fittings of mechanical piping; between fiberglass and canvas of duct insulation, air handling units, hot water tanks, etc. Work Procedures: If material is not confirmed asbestos free, at minimum, Type II precautions for the repair of damaged material or the removal of less than one square meter of material within an established Type II hoarding or Glovebag January 2012 Page 9 of 38

10 GASKET Description: Non-Friable, various colors Location: Found on mechanical components such as valves on piping Work Procedures: If material is not confirmed asbestos free, at minimum, adhere to Type I precautions when removal is of material is needed January 2012 Page 10 of 38

11 THERMAL SPRAYED-ON INSULATION Description: Friable white, grey or brown surfacing. Location: Found on structural components such as decks and beams. Can be found as debris on ceiling tiles below asbestos sprayed-on insulation. Work Procedures: If material is not confirmed asbestos free, at minimum, adhere to Type II precautions when accessing a ceiling space where asbestos sprayed-on insulation is present. January 2012 Page 11 of 38

12 THERMAL SPRAYED-ON INSULATION (ENCASED) Description: Non- Friable outer surface covering friable thermal spray-on insulation Location: Found on structural components such as beams. Can be found in various locations within Basic Medical Science Building, such as interstitial and ceiling spaces. Please consult with Project Coordinator (Physical Plant) prior to entry into the above mentioned areas ACM Frequency: Always asbestos containing Work Procedures: At minimum, adhere to Type I precautions when accessing spaces where encased asbestos sprayed-on insulation is present. Type 1 precautions carried out should ensure that tools and equipment do not lie upon or drag across material in such a way that damage occurs. January 2012 Page 12 of 38

13 ELECTRICAL WIRE SHEATH Description: Semi- Friable outer covering electrical wire Location: Electrical cords on lab equipment or within wall cavity (where wiring is hidden) Work Procedures: If material is not confirmed asbestos free, at minimum, adhere to Type I precautions when removing wiring sheath from equipment or wall cavity January 2012 Page 13 of 38

14 TEXTURED CEILING FINISHES Description: Friable white, grey or brown textured material. Sometimes painted Location: Typically used as a ceiling finish. Can be found on ceiling bulkheads. Work Procedures: If material is not confirmed asbestos free, at minimum, Type II precautions for the repair of damaged material or the removal of less than one square meter of material within an established Type II hoarding. January 2012 Page 14 of 38

15 COUNTER TOP Description: Non-friable, various colors. Location: Within labs Work Procedures: If material is not confirmed asbestos free, Type I precautions are acceptable when removing counter top from lab bench top January 2012 Page 15 of 38

16 CHALKBOARD Description: Non-friable, various colors. Location: Upon walls within labs and classrooms Work Procedures: If material is not confirmed asbestos free, Type I precautions are acceptable when removing chalkboards from there mountings (please confirm wall material is non-asbestos containing) January 2012 Page 16 of 38

17 ACOUSTIC CEILING TILES Description: Semi-friable white, grey or brown layered paper. Can be suspended or glued to building structure. Found in various sizes. Not to be confused with perforated asbestos cement ceiling tiles. Location: Ceiling. Work Procedures: If material is not confirmed asbestos free, Type I precautions are acceptable when removing less than 10 tiles. Type II precaution are required when removing more than 10 tiles. Refer to specific ceiling tile removal procedures in the Asbestos Management Program Manual. January 2012 Page 17 of 38

18 ASBESTOS CEMENT BOARD/PIPING Description: Non-friable typically grey pre-cast cement product. Location: Found within fume hoods, laboratory bench surface, on walls, as acoustic ceiling tiles, on non-insinuated mechanical piping systems and outside fascia. Often painted. ACM Frequency: Always asbestos containing Work Procedures: At minimum, Type I precautions for the repair of damaged material or the removal this material. January 2012 Page 18 of 38

19 PLASTER FINISHES Description: Non-friable cementitious white, grey or brown/orange. However, plaster is considered friable when in POOR condition or during demolition. Location: Ceiling and wall. Work Procedures: If material is not confirmed asbestos free, at minimum, Type I precautions when using any power tools equipped with a dust collection shroud and HEPA filtered vacuum. Type II precautions must be in place when removing any quantity of plaster under one square meter. January 2012 Page 19 of 38

20 TILE MORTAR Description: Semi-friable cementitious, various colors. However, mortar is considered friable when in POOR condition or during demolition. Location: Within make-up ceramic tile surface, floor or wall Work Procedures: If material is not confirmed asbestos free, at minimum, Type I precautions when using any power tools equipped with a dust collection shroud and HEPA filtered vacuum. Type II precautions for the removal of this material within an established Type II hoarding. January 2012 Page 20 of 38

21 VINYL SHEET FLOORING Description: The paper backing located on the underside of this material is considered friable when exposed. Location: Floor finish. Work Procedures: If material is not confirmed asbestos free, at minimum, Type II precautions for the removal of this material within an established Type II hoarding. January 2012 Page 21 of 38

22 VINYL FLOOR TILES Description: Non-friable. Can be found in the tiles or the mastic. No distinction on size (can either be 12X12 or 9X9) Location: Floor finish. Work Procedures: If material is not confirmed asbestos free, at minimum, Type I precautions when using any power tools equipped with a dust collection shroud and HEPA filtered vacuum. Type I precautions must be in place when removing any quantity of tile. January 2012 Page 22 of 38

23 DUFF ROBLIN SOUND BAFFLING Description: This non-friable material has been found to contain asbestos. Asbestos is present as mastic binding the foil face and fiberglass insulation. Location: Unique to the Duff Roblin Building. The material was used to segregate and sound proof ceiling spaces from adjoining corridors and/or ceiling spaces. Work Procedures: Are to be reviewed and issued by an Asbestos Program Officer on project-by-project bases. January 2012 Page 23 of 38

24 OFF WHITE PAPER PRODUCT Description: This semi-friable off white paper material has been found to contain asbestos. Typical size is six inches by 48 inches. Location: Unique to the Duff Roblin Building. Present within the ceiling space beneath the fibreglass ceiling overlay and overlapping the metal acoustic ceiling tile intersectionswork Procedures: Are to be reviewed and issued by an Asbestos Program Officer on project-by-project bases. Work Procedures: Are to be reviewed and issued by an Asbestos Program Officer on project-by-project bases. January 2012 Page 24 of 38

25 VERMICULITE Description: Coarse granular material thatis considered friable Location: Attic insulation and wall cavity fill Work Procedures: If material is not confirmed asbestos free, at minimum, Type II precautions for the removal of this material within an established Type II hoarding January 2012 Page 25 of 38

26 FIRE DOORS Description: Friable material. Two types identified; one made of a chalky material; the other is a thin corrugated paper like material Location: Within cavity of door Work Procedures: If material is not confirmed asbestos free, at minimum, Type II precautions required for such as changing locks, door knobs and hinges. Work to be done within a Type 2 hoarding. January 2012 Page 26 of 38

27 TAR PRODUCTS AND ADHESIVES Description: Non-friable, dark in color Location: Can be found on the underside of floor tiles, lagged on insulated pipes and backside of cork insulated walls. Work Procedures: If material is not confirmed asbestos free, at minimum, Type I precautions for the repair or removal this material. January 2012 Page 27 of 38

28 DRYWALL JOINT COMPOUND Description: White chalky material, Semi friable when exposed Location: Mud used to cover seams of adjoining gypsum board and screws. Work Procedures: If material is not confirmed asbestos free, at minimum, Type I precautions for the repair of damaged material or the removal this material. January 2012 Page 28 of 38

29 TERRAZZO SURFACES Description: Non-friable, Multi-colored floor made of stone fragments embedded in cement or epoxy Location: Floor and skirting boards ACM Frequency: Currently under investigation Work Procedures: If material is not confirmed asbestos free, at minimum, Type I precautions when polishing. All other work to be reviewed by an Asbestos Program Officer on project-by-project bases. January 2012 Page 29 of 38

30 Note: Please consult appendices K, L & M of the Asbestos Management Program (AMP) for details on Type I and Type II asbestos work procedures. ACTIVITIES FOR TYPE I OR LOW RISK WORK The following is a list of activities that can normally be performed while adhering to Type 1 asbestos precautions as detailed in Appendix L of the University of Manitoba Asbestos Management Program (AMP) Manual. Handling, installation or removal of non-friable manufactured products known to contain asbestos provided no sanding, cutting or similar destructive operations are required. Such manufactured products include such items as vinyl composite floor tiles, gaskets, seals, asbestos-cement panels, siding and piping. Working in close proximity to friable asbestos-containing materials (excluding jacketed mechanical insulation rated as being in good condition) provided that such materials are not actively being disturbed. Using a mechanical or electrical power tool, fitted with a HEPA filtered dust collection shroud to cut, shape, drill or grind manufactured products containing asbestos. Using hand tools to cut, shape, drill, grind or remove manufactured products known to containing asbestos. January 2012 Page 30 of 38

31 Wearing or using protective equipment or clothing made of asbestoscontaining textiles. Removing drywall where asbestos joint filling compounds have been used and left exposed. January 2012 Page 31 of 38

32 ACTIVITIES FOR TYPE II OR MODERATE RISK WORK The following is a list of activities that can normally be performed while adhering to Type 2 asbestos precautions as set down in Appendix M of the University of Manitoba Asbestos Management Program (AMP) Manual. Entry into any ceiling space above which friable asbestos-containing sprayed fireproofing or thermal insulation is known to be present. Entry into a crawlspace, mechanical chase, service area, etc. in which there is known to be loose and damaged asbestos-containing materials or debris. The clean-up, removal or encapsulation of minor amounts of friable asbestos-containing materials. Limitations as to the amount of material allowed to be removed or otherwise disturbed while adhering to Type 2 precautions shall be at the sole discretion of the Asbestos Program Officer or Designated Inspection Agency. Removal of asbestos-containing sheet flooring. Repair of asbestos-containing mechanical insulation materials. Removal of greater than ten (10) asbestos-containing ceiling tiles. The removal of less than ten (10) ceiling tiles can be classified as a Type 1 operation provided the approval of the Asbestos Program Officer or Designated Inspection Agency is obtained prior to the commencement of such work. January 2012 Page 32 of 38

33 STANDARD TYPE II PERSONAL PROTECTION EQUIPMENT Half-face negative pressure respirator equipped with new or tested P- 100 filter cartridges Disposable Coveralls with boot covers All respirators are to be employee dedicated. Prior to being issued a respirator all employees are to complete a confidential medical assessment confirming that they are medically fit to wear a respirator. In addition, all employees must be fit tested according to the CSA Standard Z in order to ensure that the respirator is providing the required level of protection to that worker. Both the confidential medical assessment and the fit testing can be performed at the University s Environmental Health & Safety Office for university employees. January 2012 Page 33 of 38

34 LABELING OF MECHANICAL ROOMS As part of the University Asbestos Management Program, the University has established a signage and labeling protocol for locations that may have ACM s and which are accessible to trained University staff only. These locations include mechanical rooms, crawl spaces, interstitial spaces and similar locations that are secured by locked access or other means. These locations are identified by a red dot (fig. 1) on the entrance to the space. Inside the rooms/spaces, signs (fig. 2) are posted indicating that the area does or may contain asbestos and precautions must be taken as per the University Asbestos Management Program. All suspect material in these spaces shall be treated as ACM, unless testing confirms otherwise. Figure 1 January 2012 Page 34 of 38

35 Figure 2 The University is currently undertaking the installation of additional signage (fig. 3) on the outside of mechanical and service areas where asbestos containing and suspect asbestos containing materials are known to be present. Figure 3 January 2012 Page 35 of 38

36 NOTES January 2012 Page 36 of 38

37 ENVIRONMENTAL HEALTH AND SAFETY OFFICE (EHSO) FORT GARRY CAMPUS 191 FRANK KENNEDY CENTRE Telephone: FAX: BANNATYNE CAMPUS T248 BASIC SCIENCE BUILDING TELEPHONE: FAX: FOR EMERGENCY ASSISTANCE AFTER HOURS AND ON WEEKENDS AND HOLIDAYS, CALL UNIVERSITY OF MANITOBA CAMPUS SECURITY SERVICES AT 555 FROM ANY 474, 789, 975, 977 UNIVERSITY EXCHANGE #555 FROM ANY MTS CELL PHONE FROM ALL OTHER PHONES January 2012 Page 37 of 38

38 January 2012 Page 38 of 38