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ASTM D2218-67(2012)

(Specification)

Standard Specification for Molybdate Orange Pigments

Standard Specification for Molybdate Orange Pigments

ABSTRACT
This specification covers molybdate orange dry pigments made by chemical coprecipitation of lead chromate and lead molybdate, with or without admixtures of other insoluble lead compounds or other materials. Mixing the pigments with a white pigment should produce tints with required mass colors and characters. The dry pigments should be subjected to chemical analysis, The dry pigments should conform to the specified requirements for chromium content, molybdenum content, moisture and other volatile matter content, coarse particle content, water-soluble matter content, mass color and tinting strength, and resistance to loss of gloss, chalking, and color change.
SCOPE
1.1 This specification covers the pigment known as molybdate orange.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.  
1.3 The following hazard caveat applies to the test method portion of this specification only. 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-May-2012
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

Replaces
ASTM D2218-67(2006) - Standard Specification for Molybdate Orange Pigments
Effective Date
01-Jun-2012
Replaced By
ASTM D2218-67(2019) - Standard Specification for Molybdate Orange Pigments
Effective Date
01-Oct-2019

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ASTM D2218-67(2012) - Standard Specification for Molybdate Orange PigmentsASTM D2218-67(2012) - Standard Specification for Molybdate Orange Pigments
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ASTM D2218-67(2012) - Standard Specification for Molybdate Orange Pigments
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D2218 −67 (Reapproved 2012)
Standard Specification for
Molybdate Orange Pigments
This standard is issued under the fixed designation D2218; 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 Filter Reflectometry (Withdrawn 1991)
2.2 Federal Specification:
1.1 This specification covers the pigment known as molyb-
TT-R-266 Resin, Alkyd; Solutions
date orange.
3. Composition and Properties
1.2 The values stated in SI units are to be regarded as
standard. The values given in parentheses are for information
3.1 Dry Pigment—The pigment shall be a product made by
only.
the chemical coprecipitation of lead chromate and lead
molybdate, with or without admixtures of other insoluble
1.3 The following hazard caveat applies to the test method
compounds of lead or other materials used in manufacture to
portion of this specification only. This standard does not
control certain properties. The pigment shall conform to the
purport to address all of the safety concerns, if any, associated
requirements for chemical composition as prescribed in Table
with its use. It is the responsibility of the user of this standard
1.
to establish appropriate safety and health practices and
determine the applicability of regulatory limitations prior to 3.2 The mass color and character of the tint formed by a
use.
mixture with a white pigment shall be the same as, and the
strength shall be within mutually agreed upon limits of a
2. Referenced Documents standard acceptable to both the purchaser and the seller.
3.3 When mutually agreed upon between the purchaser and
2.1 ASTM Standards:
the seller as being essential to the end use of the pigment,
D126 Test Methods for Analysis of Yellow, Orange, and
resistance to loss of gloss, chalking, and color change shall be
Green Pigments Containing Lead Chromate and Chro-
tested as specified in 5.1.6 The exposed panel shall show no
mium Oxide Green
chalking, a loss of not more than 10 % of the original gloss,
D185 Test Methods for Coarse Particles in Pigments
and a color change difference of not more than three units.
D235 Specification for Mineral Spirits (Petroleum Spirits)
(Hydrocarbon Dry Cleaning Solvent)
4. Sampling
D387 Test Method for Color and Strength of Chromatic
4.1 Two samples shall be taken at random from different
Pigments with a Mechanical Muller
packages from each lot, batch, day’s pack, or other unit of
D523 Test Method for Specular Gloss
production in a shipment. When no markings distinguishing
D600 Specification for Liquid Paint Driers
between units of production appear, samples shall be taken
D822 Practice for Filtered Open-Flame Carbon-Arc Expo-
from different packages in the ratio of two samples for each
sures of Paint and Related Coatings
4540 kg (10 000 lb), except that for shipments of less than
D1210 Test Method for Fineness of Dispersion of Pigment-
10 000 lb two samples shall be taken. At the option of the
Vehicle Systems by Hegman-Type Gage
purchaser, the samples may be tested separately, or samples
E97 Method of Test for Directional Reflectance Factor,
from the same production unit may be blended in equal
45-Deg 0-Deg, of Opaque Specimens by Broad-Band
quantities to form a composite sample.
5. Test Methods
This specification is under the jurisdiction of ASTM Committee D01 on Paint
5.1 Tests shall be conducted in accordance with the follow-
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.31 on Pigment Specifications. ing ASTM test methods:
Current edition approved June 1, 2012. Published August 2012. Originally
approved in 1963. Last previous edition approved in 2006 as D2218 – 67 (2006).
DOI: 10.1520/D2218–67R12. The last approved version of this historical standard is referenced on
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.org.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
the ASTM website. www.dodssp.daps.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2218−67 (2012)
TABLE 1 Requirements for Chemical Composition
Ingredient Weight %
Molybdate orange sample 29.51
%
A
Alkyd resin solution 61.72
Min Max
B
Mineral spirits 8.37
C
Chromium (calculated as PbCrO ) 70 .
4 Lead naphthenate 0.25
C
Molybdenum (calculated as PbMoO ) 8 .
Cobalt naphthenate 0.15
Total of all substances (including moisture and . 12
______
water soluble compounds) other than insoluble Total 100.0
compounds of lead
Mo
...

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ASTM  
Method  
Refer-  
Dry Pigments
Sections  
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