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ASTM D6280-98(2020)

(Specification)

Standard Specification for Zinc Phosphate Pigments

Standard Specification for Zinc Phosphate Pigments

ABSTRACT
This specification covers three types of pigments commercially known as zinc phosphate each of which may or may not be available in specific grades delineated by particle size or oil absorption. The following types of pigments are: Type I which is zinc phosphate, dihydrate predominant, Type II which is zinc phosphate, dihydrate tetrahydrate mixture, and Type III which is zinc phosphate, tetrahydrate predominant. Zinc phosphate functions as both a chemical and a pigment. As a pigment it is used in a variety of applications including that of corrosion inhibiting paints. The pigments shall be subjected to the following tests: specific gravity test, oil absorption test, Hegman grind test, coarse particles test, pH test, specific resistance test, moisture test, and loss on ignition test.
SCOPE
1.1 This specification covers three types of pigments commercially known as zinc phosphate each of which may or may not be available in specific grades delineated by particle size or oil absorption.  
1.1.1 Type I—Zinc Phosphate, dihydrate predominant.  
1.1.2 Type II—Zinc Phosphate, dihydrate tetrahydrate mixture.  
1.1.3 Type III—Zinc Phosphate, tetrahydrate predominant.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.

General Information

Status
Published
Publication Date
31-May-2020
ICS
83.040.30 - Auxiliary materials and additives for plastics
87.060.10 - Pigments and extenders
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.31 - Pigment Specifications
Current Stage
Ref Project

Relations

Refers
ASTM D153-84(2020) - Standard Test Methods for Specific Gravity of Pigments
Effective Date
01-Jun-2020

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ASTM D6280-98(2020) - Standard Specification for Zinc Phosphate PigmentsASTM D6280-98(2020) - Standard Specification for Zinc Phosphate Pigments
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ASTM D6280-98(2020) - Standard Specification for Zinc Phosphate Pigments
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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.
Designation:D6280 −98 (Reapproved 2020)
Standard Specification for
1
Zinc Phosphate Pigments
This standard is issued under the fixed designation D6280; 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.
1. Scope Measuring the Specific Resistance of the Leachate of the
Pigment
1.1 This specification covers three types of pigments com-
mercially known as zinc phosphate each of which may or may
3. Significance and Use
not be available in specific grades delineated by particle size or
oil absorption.
3.1 Zinc phosphate functions as both a chemical and a
1.1.1 Type I—Zinc Phosphate, dihydrate predominant.
pigment. As a pigment it is used in a variety of applications
1.1.2 Type II—Zinc Phosphate, dihydrate tetrahydrate mix-
including that of corrosion inhibiting paints.
ture.
1.1.3 Type III—Zinc Phosphate, tetrahydrate predominant.
4. Composition and Properties
1.2 The values stated in SI units are to be regarded as
4.1 Zinc phosphate pigment is a white corrosion inhibiting
standard. No other units of measurement are included in this
pigment consisting either predominately of zinc phosphate
standard.
dihydrate (Zn (PO ) ·2H O) or a mixture of zinc phosphate
3 4 2 2
1.3 This international standard was developed in accor- dihydrate and zinc phosphate tetrahydrate (Zn (PO ) ·4H O)
3 4 2 2
dance with internationally recognized principles on standard-
or predominately of zinc phosphate tetrahydrate which is free
ization established in the Decision on Principles for the from extenders, diluents, and other pigments.
Development of International Standards, Guides and Recom-
4.2 Zinc phosphate shall be a chemically prepared pigment
mendations issued by the World Trade Organization Technical
and shall be of such type and grade as to conform to the
Barriers to Trade (TBT) Committee.
requirements prescribed in Table 1. They shall additionally be
free of extenders, modifiers, diluents, alteration of stoichiomet-
2. Referenced Documents
ric chemical structure, co-reacted precipitates, and carbona-
2
2.1 ASTM Standards:
ceous material.
D153 Test Methods for Specific Gravity of Pigments
4.3 The desired properties of the pigment, other than as
D185 Test Methods for Coarse Particles in Pigments
herein indicated, shall be subject to mutual agreement between
D280 Test Methods for Hygroscopic Moisture (and Other
interested parties and shall be based upon a satisfactory match
Matter Volatile Under the Test Conditions) in Pigments
between any submitted sample and a previously agreed upon
D281 Test Method for Oil Absorption of Pigments by
reference sample.
Spatula Rub-out
D1193 Specification for Reagent Water
5. Classification
D1208 Test Methods for Common Properties of Certain
Pigments
5.1 Type I—which consists predominately of zinc phosphate
D1210 Test Method for Fineness of Dispersion of Pigment-
dihydrate (Zn (PO ) ·2H O) and exhibits a differentiating loss
3 4 2 2
Vehicle Systems by Hegman-Type Gage
on ignition of the dried pigment at 600°C between 8.5 and 10.0
D2448 Test Method for Water-Soluble Salts in Pigments by
weight %.
5.2 Type II—which consists essentially of a mixture of zinc
phosphate dihydrate (Zn (PO ) ·2H O) and Zinc Phosphate
1 3 4 2 2
This specification is under the jurisdiction of ASTM Committee D01 on Paint
Tetrahydrate (Zn (PO ) ·4H O) and exhibits a differentiating
and Related Coatings, Materials, andApplications and is the direct responsibility of 3 4 2 2
Subcommittee D01.31 on Pigment Specifications. loss on ignition of the dried pigment at 600°C between 10.0
CurrenteditionapprovedJune1,2020.PublishedJuly2020.Originallyapproved
and 14.0 weight %.
in 1998. Last previous edition approved in 2014 as D6280 – 98 (2014). DOI:
10.1520/D6280-98R20.
5.3 Type III—which consists predominately of zinc phos-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
phate tetrahydrate (Zn (PO ) ·4H O) and exhibits a differenti-
3 4 2 2
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ating loss on ignition of the dried pigment at 600°C between
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 14.0 and 18.0 weight %.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6280−98 (2020)
TABLE 1 Zinc Phosphate Pigment Properties
Property TYPE I TYPE II TYPE III
ZnO, weig
...

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SCOPE
1.1 This guide establishes the means and frequency of monitoring the neutron exposure of the LWR reactor pressure vessel throughout its operating life.  
1.2 The physics-dosimetry relationships determined from this guide may be used to estimate reactor pressure vessel damage through the application of Practice E693 and Guide E900, using fast neutron fluence (E > 1.0 MeV and E > 0.1 MeV), displacements per atom (dpa), or damage-function-correlated exposure parameters as independent exposure variables. Supporting the application of these standards are the E853, E944, E1005, and E1018 standards, identified in 2.1.  
1.3 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.  
1.4 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.

  • Guide
    12 pages
    English language
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  • Guide
    12 pages
    English language
    sale 15% off