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ASTM D605-82(1996)e1

(Specification)

Standard Specification for Magnesium Silicate Pigment (Talc)

Standard Specification for Magnesium Silicate Pigment (Talc)

SCOPE
1.1 This specification covers pigments that consist substantially of natural hydrous magnesium silicate, and is restricted to those minerals that conform to the chemical limits prescribed herein and can be suitably processed to what is commercially known as paint pigment quality.

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 D605-82(2003) - Standard Specification for Magnesium Silicate Pigment (Talc)
Effective Date
01-Oct-2003

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ASTM D605-82(1996)e1 - Standard Specification for Magnesium Silicate Pigment (Talc)ASTM D605-82(1996)e1 - Standard Specification for Magnesium Silicate Pigment (Talc)
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ASTM D605-82(1996)e1 - Standard Specification for Magnesium Silicate Pigment (Talc)
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2 pages
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: D 605 – 82 (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
Magnesium Silicate Pigment (Talc)
This standard is issued under the fixed designation D 605; 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.
This standard has been approved for use by agencies of the Department of Defense.
e NOTE—Keywords and unit of measurement statement were added editorially in July 1996.
1. Scope processing natural, hydrous magnesium silicate and shall
conform to the following requirements:
1.1 This specification covers pigments that consist substan-
Weight %
tially of natural hydrous magnesium silicate, and is restricted to
min max
those minerals that conform to the chemical limits prescribed
Combined magnesium and calcium sili- 88 .
herein and can be suitably processed to what is commercially
cates (MgO plus SiO plus CaO)
Calcium oxide (CaO) . 10
known as paint pigment quality.
Aluminum and iron oxides (R O ) . 6
2 3
1.2 The values stated in inch-pound units are to be regarded
Loss on ignition . 7
as the standard. The values given in parentheses are for
Moisture and other volatile material . 1
information only.
3.2 Color—The color shall be equal, within agreed upon
1.3 The following hazard caveat applies to the test method
tolerances, to that of a reference sample agreed upon between
portion of this specification only. This standard does not
the purchaser and the seller.
purport to address all of the safety concerns, if any, associated
3.3 Coarse Particles—The pigment shall contain no more
with its use. It is the responsibility of the user of this standard
than 2 % of coarse particles, retained on a 45-μm (No. 325)
to establish appropriate safety and health practices and
sieve except as may be agreed upon between the purchaser and
determine the applicability of regulatory limitations prior to
the seller.
use.
3.4 Water-Soluble Matter—The pigment shall contain no
more than 1 % water-soluble matter except as may be agreed
2. Referenced Documents
upon between the purchaser and the seller.
2.1 ASTM Standards:
3.5 Oil Absorption—The oil absorption shall be equal,
D 280 Test Methods for Hygroscopic Moisture (and Other
within agreed upon tolerances, to that of a reference sample
Matter Volatile Under the Test Conditions) in Pigments
agreed upon between the purchaser and the seller.
D 281 Test Method for Oil Absorption of Pigments by
3.6 Consistency—When consistency is included in the pur-
Spatula Rub-Out
chaser’s specification, it shall be equal, within agreed upon
D 562 Test Method for Consistency of Paints Using the
tolerances, to that of a reference sample agreed upon between
Stormer Viscometer
the purchaser and the seller.
D 717 Test Methods for Analysis of Magnesium Silicate
3.7 Fineness—The paint fineness shall be equal, within
Pigment
agreed upon tolerances, to that of a reference sample agreed
D 1208 Test Methods for Common Properties of Certain
upon between the purchaser and the seller.
Pigments
D 1210 Test Method for Fineness of Dispersion of Pigment-
4. Sa
...

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ASTM  
Method  
Refer-  
Dry Pigments
Sections  
ences  
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