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California CAC/CSST Questions and
Correct Answers/ Latest Update / Already
Graded
Regulated Asbestos-Containing Material (RACM)
Ans: Friable asbestos material
Cat 1 that has become friable, or will be or has been subjected
to sanding etc.
Cat II that has a big probability of becoming crumbled or
pulverized or reduced to powder
Category I
Ans: ACM packings, gaskets, resilient flooring and asphalt
roofing
Category 2
Ans: Any material not in Category I, non-friable ACM >1%
asbestos that cannot be crumbled, pulverized or reduced to
powder by hand pressure (IE transit panels)
Where does the word for asbestos come from?
Ans: Comes from the Greek word "unquenched"
All rights reserved © 2025/ 2026 |
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Serpentine asbestos
Ans: Chrysotile• Accounts for most of the asbestos used in
industry (90%)
• white asbestos
Amphibole group
Ans: Short, needle like and very brittle. Difficult to wet
- Amosite - (South Africa) used in high temp steam lines and
boilers 7% of asbestos used
- Crocidolite - blue asbestos
- Tremolite, Actinolite, Anthophylite - all rare
What defines a fiber
Ans: >5 microns
3:1 length ratio to width
AHERA's 3 Main Categories
Ans: Surfacing Materials - sprayed, trowled on or otherwise
applied to surfaces
- Plasters
All rights reserved © 2025/ 2026 |
California CAC/CSST Questions and
Correct Answers/ Latest Update / Already
Graded
Regulated Asbestos-Containing Material (RACM)
Ans: Friable asbestos material
Cat 1 that has become friable, or will be or has been subjected
to sanding etc.
Cat II that has a big probability of becoming crumbled or
pulverized or reduced to powder
Category I
Ans: ACM packings, gaskets, resilient flooring and asphalt
roofing
Category 2
Ans: Any material not in Category I, non-friable ACM >1%
asbestos that cannot be crumbled, pulverized or reduced to
powder by hand pressure (IE transit panels)
Where does the word for asbestos come from?
Ans: Comes from the Greek word "unquenched"
All rights reserved © 2025/ 2026 |
, Page |2
Serpentine asbestos
Ans: Chrysotile• Accounts for most of the asbestos used in
industry (90%)
• white asbestos
Amphibole group
Ans: Short, needle like and very brittle. Difficult to wet
- Amosite - (South Africa) used in high temp steam lines and
boilers 7% of asbestos used
- Crocidolite - blue asbestos
- Tremolite, Actinolite, Anthophylite - all rare
What defines a fiber
Ans: >5 microns
3:1 length ratio to width
AHERA's 3 Main Categories
Ans: Surfacing Materials - sprayed, trowled on or otherwise
applied to surfaces
- Plasters
All rights reserved © 2025/ 2026 |
