Page:NIOSH Manual of Analytical Methods - 7302.pdf/7
ELEMENTS by ICP (Microwave Digestion): METHOD 7302, Issue 1, dated 21 July 2014 - Page 7 of 9
TABLE 2. EXPOSURE LIMITS, CAS #, RTECS [1,6,11]
Element (Symbol)
CAS #
RTECS
Aluminum (Al)
7429-90-5
BD0330000
Arsenic (As) Arsenic (As)
7440-38-2 7440-38-2 7440-39-3
CG0525000 CG0525000
Beryllium (Be) Cadmium (Cd) Calcium (Ca)
7440-41-7 7440-43-9 7440-70-2
DS1750000 EU9800000
Chromium (II) (Cr)
Exposure Limits in mg/m3 (C = ceiling limit) OSHA NIOSH
15 (total dust) 5 (respirable) 0.010 (inorganic) 0.010 (inorganic) 0.5 (Soluble compounds, as Ba) 0.002, C 0.005 0.005 No OELs
10 (total dust) 5 (respirable, fume) C 0.002(1) C 0.002(1) 0.5 (Soluble compounds, as Ba) C 0.0005(1) lowest feasible conc.(1) No OELs
22541-79-3 GB6260000
0.5
0.5
Chromium (III) (Cr)
16065-83-1 GB6261000
0.5
0.5
Chromium (VI) (Cr)
18540-29-9 GB6262000
0.005
0.0002
Cobalt (Co) Copper (Cu)
7440-48-4 7440-50-8
GF8750000 GL5325000
Iron (Fe)
1309-37-1
NO7400000
0.1 1(dust, mists) 0.1 (fume) 10 (fume) as oxide
0.05 (dust, fume) 1 (dust, mists) 0.1 (fume) 5 (dust, fume) as oxide
Lead (Pb)
7439-92-1
OF7525000
0.05
0.05
Magnesium (Mg)
1309-48-4
OM3850000
15 (dust) as oxide
--
Manganese (Mn)
7439-96-5
OO9275000
C5
1; STEL 3
Molybdenum (Mo)
7439-98-7
QA4680000
Nickel (Ni)
7440-02-0
QR5950000
5 (soluble) 15 (total insoluble) 1
0.015, Ca
Phosphorus (P)
7723-14-0
TH3500000
0.1
0.1
Platinum (Pt) Antimony (Sb)
7440-06-4 7440-36-0
TP2160000 CC4025000
0.002 (soluble) 0.5
1 (metal) 0.5
Selenium (Se)
7782-49-2
VS7700000
0.2
0.2
Silver (Ag) Tellurium (Te)
7440-22-4 VW3500000 0.01 (soluble, metal) 13494-80-9 WY2625000 0.1
0.01 (soluble, metal) 0.1
Tin (Sn)
7440-31-5
XP7320000
2
2
Titanium (Ti)
7440-32-6
XR1700000
15 (as TiO2)
lowest feasible(1)
Thallium (Tl)
7440-28-0
XG3425000
0.1 (soluble)
Uranium (U)
7440-61-1
YR3490000
Vanadium (V)
7440-62-2
YW240000
Yttrium (Y)
7440-65-5
ZG2980000
0.1 (soluble) 0.25 (insoluble) 0.05 (soluble) C 0.5 (respirable) as V2O5 C 0.1 (fume) asV2O5 1
Zinc (Zn)
1314-13-2
ZH4810000
Zirconium (Zr)
7440-67-7
ZH7070000
Barium (Ba)
5 (ZnO fume) 15 (ZnO dust) 5 (ZnO respirable) 5
0.2; STEL 0.6 (insoluble) C 0.05 1 5; STEL 10 (ZnO fume) 5; C 15 (ZnO dust) 5, STEL 10
(1) Carcinogen
NIOSH Manual of Analytical Methods (NMAM), Fifth Edition