4.1 These test methods are for analysis designed as an aid in quality of yellow, orange, and green pigments containing lead chromate and chromium oxide green. Some sections may be applicable to analysis of these pigments when extracted from whole paints.

1.1 These test methods cover procedures for the chemical analysis of yellow, orange, and green pigments containing lead chromate and chromium oxide green.

1.2 The analytical procedures appear in the following order:

Sections

Chrome Yellow, Chrome Orange, and Molybdate Orange

Organic Colors and Lakes

7

Moisture and Other Volatile Matter

8

Matter Soluble in Water

9

Lead Chromate

10 and 11

Total Lead

12

Sulfate

13 and 14

Carbon Dioxide

15

Molybdenum

16 and 17

Extenders

18 – 22

Calculation of Substances Other than Insoluble Lead
 Compounds

 
23 and 24

Pure Chrome Green and Reduced Chrome Green

Organic Colors and Lakes

25

Moisture and Other Volatile Matter

26

Matter Soluble in Water

27

Iron Blue

28

Lead Chromate

29 and 30

Barium Sulfate and Insoluble Siliceous Material

31

Total Lead

32

Sulfate

33

Calcium Oxide Soluble in Acid

34 and 35

Extenders

36

Calculation of Insoluble Lead Compounds

 
37

Chromium Oxide Green

Organic Colors and Lakes

38

Moisture and Other Volatile Matter

39

Matter Soluble in Water

40

Total Chromium as Chromium Oxide

41

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Note 3.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.