ASTM D126-87(2019)
(Test Method)Standard Test Methods for Analysis of Yellow, Orange, and Green Pigments Containing Lead Chromate and Chromium Oxide Green
Standard Test Methods for Analysis of Yellow, Orange, and Green Pigments Containing Lead Chromate and Chromium Oxide Green
SIGNIFICANCE AND USE
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.
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 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.
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Designation: D126 − 87 (Reapproved 2019)
Standard Test Methods for
Analysis of Yellow, Orange, and Green Pigments Containing
1
Lead Chromate and Chromium Oxide Green
This standard is issued under the fixed designation D126; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
1.1 These test methods cover procedures for the chemical
mine the applicability of regulatory limitations prior to use.
analysis of yellow, orange, and green pigments containing lead
Specific hazard statements are given in Note 3.
chromate and chromium oxide green.
1.5 This international standard was developed in accor-
1.2 The analytical procedures appear in the following order:
dance with internationally recognized principles on standard-
Sections
ization established in the Decision on Principles for the
CHROME YELLOW, CHROME ORANGE, AND MOLYBDATE ORANGE
Development of International Standards, Guides and Recom-
Organic Colors and Lakes 7
mendations issued by the World Trade Organization Technical
Moisture and Other Volatile Matter 8
Matter Soluble in Water 9
Barriers to Trade (TBT) Committee.
Lead Chromate 10 and 11
Total Lead 12
Sulfate 13 and 14 2. Referenced Documents
Carbon Dioxide 15
2
Molybdenum 16 and 17 2.1 ASTM Standards:
Extenders 18 – 22
D280 Test Methods for Hygroscopic Moisture (and Other
Calculation of Substances Other than Insoluble Lead
Matter Volatile Under the Test Conditions) in Pigments
Compounds 23 and 24
PURE CHROME GREEN AND REDUCED CHROME GREEN D521 Test Methods for Chemical Analysis of Zinc Dust
Organic Colors and Lakes 25
(Metallic Zinc Powder)
Moisture and Other Volatile Matter 26
D1013 Test Method for Determining Total Nitrogen in
Matter Soluble in Water 27
3
Iron Blue 28 Resins and Plastics (Withdrawn 2007)
Lead Chromate 29 and 30
D1193 Specification for Reagent Water
Barium Sulfate and Insoluble Siliceous Material 31
E11 Specification for Woven Wire Test Sieve Cloth and Test
Total Lead 32
Sulfate 33 Sieves
Calcium Oxide Soluble in Acid 34 and 35
Extenders 36
3. Summary of Test Methods
Calculation of Insoluble Lead Compounds
37
3.1 Chrome Yellow, Chrome Orange, and Molybdate Or-
CHROMIUM OXIDE GREEN
Organic Colors and Lakes 38 ange:
Moisture and Other Volatile Matter 39
3.1.1 Organic colors and lakes are determined qualitatively
Matter Soluble in Water 40
by boiling the sample in water, then ethyl alcohol, and finally
Total Chromium as Chromium Oxide 41
chloroform.
1.3 The values stated in SI units are to be regarded as
3.1.2 Moisture and other volatile matter are determined in
standard. No other units of measurement are included in this
accordance with Test Method A of Test Methods D280.
standard.
3.1.3 Matter soluble in water is determined by boiling in
1.4 This standard does not purport to address all of the
water and filtering.
safety problems, if any, associated with its use. It is the
1 2
These test methods are under the jurisdiction of ASTM Committee D01 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Paint and Related Coatings, Materials, and Applications and are the direct contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
responsibility of Subcommittee D01.31 on Pigment Specifications. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved June 1, 2019. Published June 2019. Originally the ASTM website.
3
approved in 1922. Last previous edition approved in 2012 as D126 – 87 (2012). The last approved version of this historical standard is referenced on
DOI: 10.1520/D0126-87R19. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D126 − 87 (2019)
3.1.4 Lead chromate is determined by dissolving the sample 5. Purity of Reagents and Water
in dilute HCl, filtering and titrating potentiometrically with
5.1 Reagents—Unless otherwise indicated, it is intended
FeSO solution after addition of HClO .
4 4
that all reagents shall conform to the specifications of the
3.1.5 Total lead is determined by precipitation as lead
Committee on Analytical Reagents of the American Chemical
sulfide solution with H SO and final precipitation as lead
2 4
4
Society, where such specifications are available. Other grades
sulfate.
may be used, provided it is first ascertai
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D126 − 87 (Reapproved 2012) D126 − 87 (Reapproved 2019)
Standard Test Methods for
Analysis of Yellow, Orange, and Green Pigments Containing
1
Lead Chromate and Chromium Oxide Green
This standard is issued under the fixed designation D126; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
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 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 safety, health, and healthenvironmental 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.
1
These test methods are under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and are the direct responsibility of
Subcommittee D01.31 on Pigment Specifications.
Current edition approved June 1, 2012June 1, 2019. Published August 2012June 2019. Originally approved in 1922. Last previous edition approved in 20062012 as
D126 – 87 (2006).(2012). DOI: 10.1520/D0126-87R12.10.1520/D0126-87R19.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D126 − 87 (2019)
2. Referenced Documents
2
2.1 ASTM Standards:
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)
3
D1013 Test Method for Determining Total Nitrogen in Resins and Plastics (Withdrawn 2007)
D1193 Specification for Reagent Water
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Summary of Test Methods
3.1 Chrome Yellow, Chrome Orange, and Molybdate Orange:
3.1.1 Organic colors and lakes are determined qualitatively by boiling the sample in water, then ethyl alcohol, and finally
chloroform.
3.1.2 Moisture and other volatile matter are determined in accordance with Test Method A of Test Methods D280.
3.1.3 Matter soluble in water is determined by boiling in water and filtering.
3.1.4 Lead chromate is determined by dissolving the sample in dilute HCl, filtering and titrating potentiometrically with FeSO
4
solution after addition of HClO .
4
3.1.5 Total lead is determined by precipitation as lead sulfide solution with H SO and final precipitation as lead sulfate.
2 4
3.1.6 Sulfate is determined by dissolving the sample in acetic acid, neutralizing with sodium carbonate, plus addition of HCl
to an aliquot followed by addition of BaCl to precipitate as barium sulfate.
2
3.1.7 Carbon dioxide is determined by evolution.
3.1.8 Molybdenum is determined by precipi
...
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