NAME: Zirconium Compounds (as Zr)
IMIS: 2620
CAS: 7440-67-7
NIOSH: RTECS ZH7070000
DESCRIPTION:
Solid. Appearance, odor, and properties vary depending upon specific
compound.
INCOM:
ZrCl: water, moist air, alkali metals; ZrH2: strong oxidizers
Exposure Limits
OSHA GENERAL INDUSTRY PEL:
5 mg/m3
OSHA CONSTRUCTION INDUSTRY PEL:
5 mg/m3 TWA
ACGIH TLV:
5 mg/m3 TWA; 10 mg/m3 STEL; Appendix A4 (Not Classifiable as a Human
Carcinogen)
NIOSH REL: 5 mg/m3 TWA; 10 mg/m3 STEL
Health Factors
SYMPTOM(s):
Skin granulomas; In animals: X-ray evidence of retention in lungs;
skin, mucous membrane irritation
HEALTH EFFECTS:
Pneumoconiosis (HE10); Lung and skin granulomas (HE3)
ORGAN:
Respiratory system, skin
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
MEDIA:
Tared Low Ash Polyvinyl Chloride (LAPVC) filter 5 microns
MAX V:
960 Liters MIN V:
480 Liters MAX F:
2.0 L/min (TWA)
MAX V:
30 Liters MAX F:
2.0 L/min (STEL)
ANL 1:
Gravimetric analysis
REF:
11, 12
SAE:
0.10
CLASS:
Fully Validated
ANL A:
Atomic Absorption Spectroscopy; AAS
REF:
2 (OSHA ID-121)
CLASS:
Fully Validated
NOTE:
Submit as a separate sample. If the gross weight sample yields a concentration below the standard for the air contaminant, do not submit the sample to SLTC for analysis.
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