CSST Exam Questions With 100% Correct Answers.Abestos groups Answer- Serpentine and Amphibole Chrysotile (serpentine group) characteristics Answer- Cylindrical, easier to wet, and most common Amosite (amphibole group) characteristics Answer- Short needle like, hard to wet, brown asbtos Blue asbestos Answer- Chrocidolite ACM Answer- Asbestos containing material Friable Answer- Soft and dry. Can be crushed or pulverized by hand.Pipe insulation is universally considered friable. Same as ceiling tiles.Non-friable Answer- Breaks into pieces Mastics, roofing material, floor tiles, cement.ACBM Answer- Asbestos containing building material ACCM Answer- Asbestos containing construction material ACRM Answer- Asbestos containing roofing material What does the EPA consider ACM Answer- >1% What are the categories for ACM Answer- Surfacing, TSI, and Misc.Surf. material means what? Answer- Anything that is sprayed or troweled on, or otherwise applied to surface.Plasters, fireproofing, texturing.TSI is what? Answer- Thermal system insulation.Applied to pipes, fittings, boilers, tanks, ducts or other structural components to prevent heat gain or loss.Asbestos fibers can remain airborne for how long? Answer- 48 hours
- / 1