ASTM International - ASTM E848-94(2012)

Standard Guide for Safety and Health Requirements Relating to Occupational Exposure to Water-Insoluble Chromates

historical
Buy Now
Organization: ASTM International
Publication Date: 1 June 2012
Status: historical
Page Count: 12
ICS Code (Occupational safety. Industrial hygiene): 13.100
significance And Use:

4.1 This guide includes chromates that are not readily soluble in water and that have water solubilities (Chromate ION) within the range of the more soluble calcium chromate and the much less... View More

scope:

1.1 This guide covers control procedures for the safe production, storage, transportation, and handling of only the hexavalent chromium compounds found in Table 1 and their various hydrates, and mixtures of coprecipitates of the same regardless of crystalline form.

TABLE 1 Examples of Some Hexavalent Chromium Compounds

Chemical Name Formula Color Index Name

A

Barium chromate BaCrO

4

Pigment Yellow 31
Barium potassium chromate BaK

3(CrO4)2

Pigment Yellow 31
Basic copper chromate CuCrO

4
 xCu(OH) 2

Not listed
Basic cadmium chromate Cd

2(OH)2CrO4

Pigment Yellow 44
Basic lead chromate PbCrO

4PbO

Pigment Orange 21
Bismuth basic dichromate Bi

2O3CrO3

Pigment Red 103
Calcium chromate CaCrO

4

None assigned
"Chromic chromate"
 (calcium chromate sinter)
xCaO yCr

2O 3
 zCrO 3

Pigment Yellow 33
Not listed
Ferric chromate Fe

2(CrO4)3

Pigment Yellow 45
Basic ferric chromate Fe(OH)CrO

4

Pigment Yellow 45
Lead chromate PbCrO

4

Pigment Yellow 34
Lead molybdochromate PbCrO

4PbMoO4

Pigment Red 104
Potassium zinc chromate K

2O 4ano·4Cr4O3

Pigment Yellow 36
Strontium chromate SrCrO

4

Pigment Yellow 32
Zinc chromate ZnCrO

4

Pigment Yellow 36

A For Classification, not Toxicology.

1.2 This guide is not intended to cover ( a) such "soluble" chromates as chromates of sodium, potassium, magnesium, or ammonium; (b) soluble bichromates; (c) chromic acid; (d) volatile chromyl compounds; (e) any trivalent chromium compound; or (f) elemental chromium. Omission of said compounds or classes of compounds should not be construed to mean that they may be handled without due regard to their particular physical, chemical, and toxicological hazards (9, 10, 11).

1.3 The chromate ion, CrO4−2 , depending upon the acidity, complexes to form di-, tri-, and higher polychromates; hence, the chromates listed in Table 1 may contain mixtures of polychromates, depending on the method of isolation and end use.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (For more specific precautionary information see Section 5.)

Document History

December 1, 2016
Standard Guide for Safety and Health Requirements Relating to Occupational Exposure to Water-Insoluble Chromates
1.1 This guide covers control procedures for the safe production, storage, transportation, and handling of only the hexavalent chromium compounds found in Table 1 and their various hydrates, and...
ASTM E848-94(2012)
June 1, 2012
Standard Guide for Safety and Health Requirements Relating to Occupational Exposure to Water-Insoluble Chromates
1.1 This guide covers control procedures for the safe production, storage, transportation, and handling of only the hexavalent chromium compounds found in Table 1 and their various hydrates, and...
June 1, 2006
Standard Guide for Safety and Health Requirements Relating to Occupational Exposure to Water-Insoluble Chromates
1.1 This guide covers control procedures for the safe production, storage, transportation, and handling of only the hexavalent chromium compounds found in and their various hydrates, and mixtures of...
June 10, 2000
Standard Guide for Safety and Health Requirements Relating to Occupational Exposure to Water-Insoluble Chromates
1.1 This guide covers control procedures for the safe production, storage, transportation, and handling of only the hexavalent chromium compounds found in Table 1 and their various hydrates, and...
Advertisement