Significance and Use
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. Scope
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 MolybdateO range |
| 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 G reen |
| 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 Com-pounds | 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Note 3.
2. Referenced Documents
D1013 Test Method for Determining Total Nitrogen in Resins and Plastics
D1193 Specification for Reagent Water
D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
D521 Test Methods for Chemical Analysis of Zinc Dust (Metallic Zinc Powder)
E11 Specification for Wire Cloth and Sieves for Testing Purposes
Index Terms
chromium oxide green pigment; green pigment containing lead chromate and chromium oxide; lead chromate pigment; lead containing pigment; molybdate pigment; orange pigment containing lead chromate and chromium oxide; yellow pigment containing lead chromate and chromium oxide; ICS Number Code 87.060.10
DOI: 10.1520/D0126-87R06
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Citing ASTM Standards
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