ASTM D520-00

Standard Specification for Zinc Dust Pigment

SCOPE
1.1 This specification covers two types of zinc dust, for use as a pigment in paints. Type I is a general grade. Type II is a high-purity grade.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 09-Apr-2000
• ICS: 87.060.10 - Pigments and extenders
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.31 - Pigment Specifications

Relations

• Replaced By: ASTM D520-00(2005) - Standard Specification for Zinc Dust Pigment
• Effective Date: 15-May-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 520 – 00
Standard Specification for
Zinc Dust Pigment
This standard is issued under the fixed designation D 520; 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.
TABLE 1 Requirements for Composition
1. Scope
Type I Type II Type III
1.1 Thisspecificationcoversthreetypesofzincdust,foruse
Total zinc, calculated as Zn, min, % 97.5 98.0 99.0
as a pigment in paints.
Metallic zinc, min, % 94.0 94.0 96.0
1.2 The values stated in SI units are to be regarded as the
Material other than metallic zinc, ZnO,
standard. The values given in parentheses are for information
and admixed CaO, where applicable
max % 0.75 . .
only.
Calcium, calculated as CaO, max, % 0.7 0.7 .
Lead, calculated as Pb, max, % . 0.01 0.002
2. Referenced Documents
Iron, calculated as Fe, max, % . 0.02 0.002
Cadmium, calculated as Cd, max, % . 0.01 0.001
2.1 ASTM Standards:
Chlorine, calculated as Cl, max, % . 0.01 .
B 214 Test Method for Sieve Analysis of Granular Metal
Sulfur, calculated as SO , max, % . 0.01 .
Powders
Moisture and other volatile matter, max, %
0.10 0.10 0.10
D 185 Test Methods for Coarse Particles in Pigments,
Oily or fatty matter, or both, max, % . 0.05 .
Pastes, and Paints
Zinc oxide (ZnO), max, % 6.0 remainder remainder
D 521 Test Methods for Chemical Analysis of Zinc Dust
Coarse particles, max, %:
Total residue retained on a 150-µm none 0.1 0.1
(Metallic Zinc Powder)
(No. 100) sieve
E 40 Test Methods for Chemical Analysis of Slab Zinc
Total residue retained on a 75-µm . 0.8 0.8
(Spelter)
(No. 200) sieve
Total residue retained on a 45-µm 4.0 3.0 3.0
(No. 325) sieve
3. Composition and Properties
3.1 The pigments shall consist substantially of metallic zinc
and shall conform to the requirements for composition pre-
scribed in Table 1.
5000 kg (10 000 lb), except that for shipments of less than
3.2 In such physical properties as are specified by the
5000 kg, two samples shall be taken. At the option of the
purchaser, the pigment shall satisfactorily match a reference
purchaser, the samples may be tested separately or after
sample mutually agreed upon between the purchaser and the
blending in equal quantities the samples from the same
seller.
production unit to form a composite sample.
4. Sampling
5. Test Methods
4.1 Two samples shall be taken at random from different
...