Asbestos Definitions

Asbestos includes chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, actinolite asbestos, and any of these minerals that have been chemically treated and/or altered.


Asbestos Containing Material (ACM) means any material containing more than one percent asbestos. Common examples of ACM include but are not limited to: pipe and boiler insulation, sprayed on fireproofing, troweled on acoustical plaster, floor tile and mastic, floor linoleum, transite shingles, roofing materials, wall and ceiling plaster, ceiling tiles, and gasket materials.


Asbestos Awareness Training is provided for employees who conduct asbestos work that is not considered an asbestos project or is excluded from asbestos worker certification.


Asbestos Project includes the construction, demolition, repair, remodeling, maintenance, or renovation of any public or private building or structure, mechanical piping equipment or system involving the demolition, removal, encapsulation, salvage, or disposal of material or outdoor activity releasing or likely to release asbestos fibers into the air.


Asbestos Survey is an inspection by certified inspectors which is conducted to determine whether materials to be worked on or removed contain asbestos.


Certified Asbestos Worker means an individual certified by the Labor and Industries under WAC 296-65-010.


Disturb or Disturbance refers to activities that disrupt the matrix of ACM or PACM, crumble or pulverize ACM or PACM, or generate visible debris from ACM or PACM. This term includes activities that disrupt the matrix of ACM or PACM, render ACM or PACM friable, or generate visible debris. Disturbance includes cutting away small amounts of ACM or PACM, no greater than the amount that can be contained in one standard size glove bag or waste bag in order to access a building or vessel component. In no event shall the amount of ACM or PACM so disturbed exceed that which can be contained in one glove bag or waste bag which shall not exceed 60 inches in length and width.


Friable Asbestos is an item containing asbestos that is able to be reduced to powder by hand pressure when dry.


Intact Asbestos means that the ACM has not crumbled, been pulverized, or otherwise deteriorated so that the asbestos is no longer likely to be bound with its matrix. Friable ACM that is disturbed is presumed to be no longer intact.


Presumed Asbestos-Containing Material (PACM) means thermal system insulation and surfacing material found in buildings, vessels, and vessel sections constructed no later than 1980 that are assumed to contain greater than one percent asbestos but have not been sampled or analyzed to verify or negate the presence of asbestos.


Restricted Access Areas are areas designated by EH&S as off-limits to University employees and others because of contamination with ACM debris or where entry into the area may damage ACM due to its condition or close proximity to workers.


Surfacing Material means material that is sprayed, troweled-on, or otherwise applied to surfaces (such as acoustical plaster on ceilings and fireproofing materials on structural members, or other materials on surfaces for acoustical, fireproofing, and other purposes).


Thermal System Insulation (TSI) means ACM applied to pipes, fittings, boilers, breaching, tanks, ducts, or other structural components to prevent heat loss or gain.