CSST Exam
Why was asbestos added to construction materials ?
It provided: insulation properties, strength and durability from weathering, made spray on products
easier to apply, and does not conduct electricity.
What are the three types of asbestos and their associated species?
Chrysotile : Serpentine , Amosite and Crocidolites : amphiboles.
What is the predominant color and structure of Chrysotile asbestos?
white , long , curly , hollow
What is the predominant color and structure of Amosite asbestos ?
brown / tan ; long and straight
What is the predominant color and structure of Crocidolite?
blue ; long and straight
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What is the definition of a Surfacing material ?
A sprayed on troweled on or otherwise applied to structural surfaces EX: acoustic / decorative ceilings,
fire proofing, textured paints and plasters.
what is the definition of Thermal Systems Insulation?
applied to pipes, fittings, tanks, other structural, components etc. , to prevent heat loss or gain. EX: pipe
insulation, elbow mud, block insulation, air cell, asbestos paper wrap, preformed halves, magnesium
silica, etc
what is the definition of Miscellaneous products:
material that is not TSI or surfacing but applied to structural components.
Define Friable vs non friable.
Friable asbestos will crumble , pulverize or otherwise release dust by applying hand pressure.
What agency does not use the term friable ? why?
OSHA - because tools that are used by workers can easily make non friable materials friable
Primary type of asbestos used in the U.S ?
Chrysotile.
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