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NEPLATNÁ ASTM E848-94(2012) 1.6.2012 náhľad

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ASTM E848-94(2012)

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

Automaticky preložený názov:

Štandardné Pokyny pre bezpečnosť a ochranu zdravia v súvislosti s expozíciou vo vode nerozpustné Chromý

NORMA vydaná dňa 1.6.2012

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Informácie o norme:

Označenie normy: ASTM E848-94(2012)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.6.2012
Kód tovaru: NS-48252
Počet strán: 12
Približná hmotnosť: 36 g (0.08 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Kategórie - podobné normy:

Bezpečnost práce. Průmyslová hygiena

Anotácia textu normy ASTM E848-94(2012) :

Keywords:
chromium, chromium based pigments, chromium compounds, exposure, health, hexavalent chromium, insoluble chromium, safety, ICS Number Code 13.100 (Occupational safety. Industrial hygiene)

Doplňujúce informácie

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 soluble lead chromate. The major occupations involving potential exposure to insoluble chromates are in roasting of chromite ore, the manufacture of chromate pigments, the manufacture of coatings containing chromate pigments, and spray painting with these coatings. There is insufficient evidence to conclude that trivalent chromium compounds are carcinogenic.

1. Scope

1.1 This guide covers control procedures for the safe production, storage, transportation, and handling of only the hexavalent chromium compounds found in

Chemical Name

Formula

Color Index Name^A

Barium chromate

BaCrO₄

Pigment Yellow 31

Barium potassium chromate

BaK₃(CrO₄)₂

Pigment Yellow 31

Basic copper chromate

CuCrO₄
xCu(OH) ₂

Not listed

Basic cadmium chromate

Cd₂(OH)₂CrO₄

Pigment Yellow 44

Basic lead chromate

PbCrO₄PbO

Pigment Orange 21

Bismuth basic dichromate

Bi₂O₃CrO₃

Pigment Red 103

Calcium chromate

CaCrO₄

None assigned

“Chromic chromate”
(calcium chromate sinter)

xCaO yCr₂O ₃
zCrO

Pigment Yellow 33
Not listed

Ferric chromate

Fe₂(CrO₄)₃

Pigment Yellow 45

Basic ferric chromate

Fe(OH)CrO₄

Pigment Yellow 45

Lead chromate

PbCrO₄

Pigment Yellow 34

Lead molybdochromate

PbCrO₄PbMoO₄

Pigment Red 104

Potassium zinc chromate

K₂O 4ano·4Cr4O₃

Pigment Yellow 36

Strontium chromate

SrCrO₄

Pigment Yellow 32

Zinc chromate

ZnCrO₄

Pigment Yellow 36

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; (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.)

2. Referenced Documents

Z88.2	Practices for Respiratory Protection
Z129.1	Precautionary Labeling for Hazardous Industrial Chemicals
29 CFR 1910.20
	Hazard Communication
29 CFR 1910.134
Z87.1
	Lead