The revision separates vermiculite into two types. Vermiculite material used for thermal systems insulation (TSI), surfacing materials, and other miscellaneous ACM (including but not limited to: existing or new surfacing material, plaster, pipe lagging, and sprayed-on fireproofing) or vermiculite material used for attic fill, block fill, and other loose bulk vermiculite material. For the vermiculite material used for attic fill, etc. nothing has changed. We still cannot analyze it and material must be assumed to contain asbestos and designated an asbestos containing material.
|New Evaluation for Surfacing Material Containing Vermiculite|
- If vermiculite is calculated to be less than 10% of the entire material composition and no asbestos fibers are detected, the material may be reported as non-ACM.
- If any asbestos fibers are identified, analysis must proceed according to Item 198.1 PLM and reported as ACM according to Section 6.3.
- If vermiculite is calculated to be 10% or more of the material, the material must be reported as ACM.