Agent Name

Fibrous glass

CAS Number

65997-17-3

Formula

Varies

Major Category

Mineral Dusts

Synonyms

Fiber glas; Fiberglass; Glass fibers; Glass wool;

Category

Synthetic Vitreous Fibers

Sources/Uses

Usually produced from borosilicate and low-alkali silicate glasses; [NIOSH] 1) continuous filament fibers used in textiles and plastics, or 2) wool-type fibers used in acoustic panels, air ducts, and insulation;

Comments

Insulation glass wool is not classifiable as to carcinogenicity to humans. [IARC] Glass filaments and glass wool are regulated by OSHA as nuisance dusts. Fibrous glass dust causes skin irritation. See "Synthetic vitreous fibers."

Exposure Assessment
Skin Designation (ACGIH)

No

TLV (ACGIH)

5 mg/m3, inhal. Fraction (continuous filament glass fiber), 1 respir. fiber/cc(glass wool and special purpose glass fibers)

Adverse Effects
IARC Carcinogen

Not Classifiable

NTP Carcinogen

Anticipated Human Carcinogen

Links to Other NLM Databases
Toxicity Information

Search TOXNET

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: