Page:NIOSH Manual of Analytical Methods - 7303.pdf/5

 ELEMENTS by ICP (Hot Block/HCl/HNO3 Ashing): METHOD 7303, Issue 1, dated 15 March 2003 - Page 5 of 6 TABLE 2. EXPOSURE LIMITS, CAS #, RTECS Element (Symbol)

OSHA

Exposure Limits, mg/m3 (Ca = carcinogen) NIOSH ACGIH

CAS #

RTECS

Silver (Ag)

7440-22-4

VW3500000

0.01 (dust, fume, metal)

0.01 (metal, soluble)

0.1 (metal) 0.01 (soluble)

Aluminum (Al)

7429-90-5

BD0330000

15 (total dust) 5 (respirable)

10 (total dust) 5 (respirable fume) 2 (salts, alkyls)

10 (dust) 5 (powders, fume) 2 (salts, alkyls)

Arsenic (As)

7440-38-2

CG0525000

varies

C 0.002, Ca

0.01, Ca

Barium (Ba)

7440-39-3

CQ8370000

0.5

0.5

0.5

Beryllium (Be)

7440-41-7

DS1750000

0.002, C 0.005

0.0005, Ca

0.002, Ca

Calcium (Ca)

7440-70-2

--

varies

varies

varies

Cadmium (Cd)

7440-43-9

EU9800000

0.005

lowest feasible, Ca

0.01 (total), Ca 0.002 (respir.), Ca

Cobalt (Co)

7440-48-4

GF8750000

0.1

0.05 (dust, fume)

0.02 (dust, fume)

Chromium (Cr)

7440-47-3

GB4200000

0.5

0.5

0.5

Copper (Cu)

7440-50-8

GL5325000

1 (dust, mists) 0.1 (fume)

1 (dust) 0.1 (fume)

1 (dust, mists) 0.2 (fume)

Iron (Fe)

7439-89-6

NO4565500

10 (dust, fume)

5 (dust, fume)

5 (fume)

Potassium (K)

7440-09-7

TS6460000

--

--

--

Lanthanum

7439-91-0

--

–

–

--

Lithium (Li)

7439-93-2

--

--

--

--

Magnesium (Mg)

7439-95-4

OM2100000

15 (dust) as oxide 5 (respirable)

10 (fume) as oxide

10 (fume) as oxide

Manganese (Mn)

7439-96-5

OO9275000

C5

1; STEL 3

5 (dust) 1; STEL 3 (fume)

Molybdenum (Mo)

7439-98-7

QA4680000

5 (soluble) 15 (total insoluble)

5 (soluble) 10 (insoluble)

5 (soluble) 10 (insoluble)

Nickel (Ni)

7440-02-0

QR5950000

1

0.015, Ca

0.1 (soluble) 1 (insoluble, metal)

Phosphorus (P)

7723-14-0

TH3500000

0.1

0.1

0.1

Lead (Pb)

7439-92-1

OF7525000

0.05

0.05

0.05

Antimony (Sb)

7440-36-0

CC4025000

0.5

0.5

0.5

Selenium (Se)

7782-49-2

VS7700000

0.2

0.2

0.2

Tin (Sn)

7440-31-5

XP7320000

2

2

2

Strontium (Sr)

7440-24-6

–

–

–

--

Tellurium (Te)

13494-80-9

WY2625000

0.1

0.1

0.1

Titanium (Ti)

7440-32-6

XR1700000

--

--

--

Thallium (Tl)

7440-28-0

XG3425000

0.1 (skin) (soluble)

0.1 (skin) (soluble)

0.1 (skin)

Vanadium (V)

7440-62-2

YW240000

--

C 0.05

--

Tungsten

7440-33-7

–

5

5 10 (STEL)

5 10 (STEL)

Yttrium (Y)

7440-65-5

ZG2980000

1

N/A

1

Zinc (Zn)

7440-66-6

ZG8600000

–

--

--

Zirconium (Zr)

7440-67-7

ZH7070000

5

5, STEL 10

5, STEL 10

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition