Significance and Use
3.1 These test methods are suitable for determining if impurities are present and establishing that the required pigments are present. These test methods may be used for manufacturing quality control.
Scope
1.1 These test methods cover procedures for the chemical analysis of blue pigments known commercially as iron blue, copper phthalocyanine blue, and ultramarine blue.
1.2 The analytical procedures appear in the following order:
Sections
IRON BLUE PIGMENTS
Identification
6
Moisture by the Brabender Moisture Tester
7 and 8
Moisture by Toluene Distillation
9
Water-Soluble Matter by Extraction
10
Water-Soluble Salts by Electrical Conductivity
11
Detection of Acid-Insoluble Extenders
12 and 13
Detection of Acid-Soluble Extenders
14 to 17
Detection of Organic Colors and Lakes
18
COPPER PHTHALOCYANINE BLUE PIGMENTS
Identification
19
Moisture and Other Volatile Matter
20
Detection of Basic Dye Derivatives
21
Detection of Other Organic Coloring Matter
22
Detection of Ultramarine Blue
23
Detection of Iron Blue
24
ULTRAMARINE BLUE
Identification
25
Moisture and Other Volatile Matter
26
Water-Soluble Matter
27
Detection of Basic Dye Derivatives
28
Detection of Other Organic Coloring Matter
29
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 concerns, 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.
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.
