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ASTM

ASTM D4462-85(1996)e1

(Specification)

Standard Specification for Zinc Hydroxy Phosphite Pigment

Standard Specification for Zinc Hydroxy Phosphite Pigment

SCOPE
1.1 This specification covers a zinc hydroxy phosphite pigment having the general formula ZnHPO3 [dot][ZnO[dot] 2Zn(OH)2 ].

General Information

Status
Historical
Publication Date
31-Dec-1995
ICS
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

Replaced By
ASTM D4462-02 - Standard Specification for Zinc Hydroxy Phosphite Pigment
Effective Date
10-Jul-2002

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ASTM D4462-85(1996)e1 - Standard Specification for Zinc Hydroxy Phosphite PigmentASTM D4462-85(1996)e1 - Standard Specification for Zinc Hydroxy Phosphite Pigment
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ASTM D4462-85(1996)e1 - Standard Specification for Zinc Hydroxy Phosphite Pigment
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Standards Content (Sample)


e1
Designation: D 4462 – 85 (Reapproved 1996)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Zinc Hydroxy Phosphite Pigment
This standard is issued under the fixed designation D 4462; 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 (e) indicates an editorial change since the last revision or reapproval.
e NOTE—Keywords were added editorially in May 1996.
TABLE 1 Requirements for Zinc Hydroxy Phosphite Pigment
1. Scope
Min Max
1.1 This specification covers a zinc hydroxy phosphite
Zinc (as ZnO), % 74.7 79.7
pigment having the general formula
Phosphorus (as H PO ), % 18.5 20.1
3 3
ZnHPO ·[ZnO·2Zn(OH) ].
3 2
Moisture, % . 1.25
Oil absorption, lb/100 lb pigment, % 15 22
2. Referenced Documents
Residue, No. 325 sieve, % . 1.0
2.1 ASTM Standards:
D 185 Test Methods for Coarse Particles in Pigments,
Pastes, and Paints production in a shipment. When no markings distinguishing
D 280 Test Methods for Hygroscopic Moisture (and Other between units of production appear, samples shall be taken
Matter Volatile Under the Test Conditions) in Pigments from different packages, in the ratio of two samples for each
D 281 Test Method for Oil Absorption of Pigments by 10 000 lb (5000 kg), except that for shipments of less than
Spatula Rub-Out 10 000 lb two samples shall be taken. At the option of the
D 4450 Test Method for Analysis of Zinc Hydroxy Phos- purchaser, the samples may be tested separately or after
phite Pigment blending in equal quantities the samples from the same
production unit to form a composite sample.
3. Composition and Properties
5. Test Methods
3.1 The pigment shall consist of zinc hydroxy phosphite and
shall conform to the requirements in Table 1. 5.1 Tests shall be conducted in accordance with the follow-
3.2 The mass color of the dry pigment is white. The shade ing ASTM test methods. Test procedures not covered by ASTM
and tinti
...

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ASTM  
Method  
Refer-  
Dry Pigments
Sections  
ences  
Moisture and Other Volatile Matter  
6  
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