Page:NIOSH Manual of Analytical Methods - 7020.pdf/4

 CALCIUM and compounds, as Ca: METHOD 7020, Issue 2, dated 15 August 1994 - Page 4 of 4

TABLE 1: General Information

FORMULA

M.W.

CAS #

RTECS #

EXPOSURE LIMITS (mg/m 3) OSHA NIOSH ACGIH

Ca

40.08

7440-70-2

EV8040000

--

--

CaO

56.08

1305-78-8

EW3100000

5

2

2

Ca(OH) 2

74.10

1305-62-0

EW2800000

None

5

5

Ca(CO 3)2 total dust

100.09

471-34-1

EV9580000

15 (total); 10 (total); 10 5 (resp.) 5 (resp.)

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94

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