Safety Data Sheet
GAF                        SDS # 2093 
Page 3 of 7 
SECTION 3: HAZARDS IDENTIFICATION 
OCCUPATIONAL EXPOSURE LIMITS 
CHEMICAL NAME 
CAS # 
% 
OSHA 
ACGIH 
OTHER 
Granules 
- 
20 – 45 
NE 
NE 
NE 
Limestone 
1317-65-3 
25 – 45 
5 mg/m3 – resp. 
15 mg/m3 – total 
3 mg/m3 – resp. 
10 mg/m3 – total 
REL: 5 mg/m3 – 
resp. 
10 mg/m3 – total 
Oxidized Asphalt 
64742-93-4 
10 – 30 
NE 
0.5 mg/m3 
(inhalable 
fraction, as 
benzene-soluble 
aerosol) 
5 mg/m3 – ceiling (15 
min. fumes) 
Crystalline Silica 
14808-60-7 
0 – 10 
10 mg/m3 / (% 
SiO2 + 2) – resp. 
0.025 mg/m3 
REL: 0.05 mg/m3 – 
resp. 
Fiberglass Mat 
65997-17-3 
1 – 3 
1 f/cc – resp. 
1 f/cc – resp. 
REL: 5 mg/m3 – total 
fibers 
Titanium Dioxide 
13463-67-7 
0 – 4 
15 mg/m3 – total 
10 mg/m3 – total 
REL: lowest feasible 
concentration 
NE = Not Established 
SECTION 4: FIRST AID MEASURES 
FIRST AID PROCEDURES 
 EYES: 
Hold eyelids open and wash with gentle stream of water for at least 15 
minutes preferably at eyewash fountain. 
 SKIN: 
Wash affected area thoroughly with soap and water. 
 INHALATION: 
Remove to fresh uncontaminated air. 
 INGESTION: 
Not expected to be ingested. 
NOTES TO PHYSICIANS OR 
FIRST AID PROVIDERS: 
No information available 
SECTION 5: FIRE FIGHTING PROCEDURES 
SUITABLE EXTINGUISHING MEDIA: 
Water spray, Alcohol foam, Carbon Dioxide, or Dry chemical. 







