iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ASTM

ASTM D1844-86(2003)

(Test Method)

Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate

Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate

SIGNIFICANCE AND USE
These test methods may be used to confirm the stated lead oxide, chromium trioxide and silica content of basic lead silicochromate and is useful for quality control.
SCOPE
1.1 These test methods cover the chemical analysis of the pigment commercially known as basic lead silicochromate and are applicable to pigment supplied by the manufacturer and to pigment, but not mixed pigments, separated from liquid coatings. The presence of basic lead silicochromate species shall be confirmed by X-ray diffraction analysis (see Specification D 1648).
1.2 For liquid coatings the pigment must first be separated from the vehicle before conducting the analysis.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address 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
30-Nov-2003
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 D1844-86(1999) - Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
Effective Date
01-Dec-2003
Replaced By
ASTM D1844-86(2008) - Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
Effective Date
01-Jul-2008
Referred By
ASTM D1648-86(2020) - Standard Specification for Basic Lead Silicochromate Pigment
Effective Date
01-Dec-2003

Buy Standard

ASTM D1844-86(2003) - Standard Test Methods for Chemical Analysis of Basic Lead SilicochromateASTM D1844-86(2003) - Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
PreviousNext
Standard
ASTM D1844-86(2003) - Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
English language
5 pages
sale 15% off
Preview
sale 15% off
Preview

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D1844–86(Reapproved2003)
Standard Test Methods for
1
Chemical Analysis of Basic Lead Silicochromate
This standard is issued under the fixed designation D 1844; 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.
1. Scope D 280 Test Methods for Hygroscopic Moisture (and Other
Matter Volatile Under the Test Conditions) in Pigments
1.1 These test methods cover the chemical analysis of the
D 281 Test Method for Oil Absorption of Pigments by
pigment commercially known as basic lead silicochromate and
Spatula Rub-Out
are applicable to pigment supplied by the manufacturer and to
D 387 Test Method for Color and Strength of Color Pig-
pigment, but not mixed pigments, separated from liquid
ments with a Mechanical Muller
coatings. The presence of basic lead silicochromate species
D 1193 Specification for Reagent Water
shall be confirmed by X-ray diffraction analysis (see Specifi-
D 1648 Specification for Basic Lead Silicochromate Pig-
cation D 1648).
ment
1.2 For liquid coatings the pigment must first be separated
D 2371 Test Method for Pigment Content of Solvent-
from the vehicle before conducting the analysis.
Reducible Paints
1.3 The analytical procedures appear in the following order:
Sections
3. Significance and Use
Lead oxide 6 to 14
3.1 These test methods may be used to confirm the stated
Chromium trioxide 15 to 23
lead oxide, chromium trioxide and silica content of basic lead
Silica 24 to 27
silicochromate and is useful for quality control.
Moisture and other volatile matter 28
Coarse particles 29
Oil absorption 30
4. Purity of Reagents
Mass color and tinting strength 31
4.1 Reagent grade chemicals shall be used in all tests.
1.4 The values stated in SI units are to be regarded as the
Unless otherwise indicated, it is intended that all reagents shall
standard. The values given in parentheses are for information
conform to the specifications of the Committee on Analytical
only.
Reagents of the American Chemical Society, where such
3
1.5 This standard does not purport to address the safety
specifications are available. Other grades may be used, pro-
concerns, if any, associated with its use. It is the responsibility
vided it is first ascertained that the reagent is of sufficiently
of the user of this standard to establish appropriate safety and
high purity to permit its use without lessening the accuracy of
health practices and determine the applicability of regulatory
the determination.
limitations prior to use.
4.2 Unless otherwise indicated, references to water shall be
understood to mean reagent water conforming to Type II of
2. Referenced Documents
Specification D 1193.
2
2.1 ASTM Standards:
D 185 Test Methods for Coarse Particles in Pigments, 5. Preparation of Sample
Pastes, and Paints
5.1 Thoroughly mix liquid coatings and separate in accor-
dance with Test Method D 2371 sufficient pigment to enable
1 the required analyses to be carried out.
These test methods are under the jurisdiction of ASTM Committee D01 on
Paint and Related Coatings, Materials, and Applications and are the direct
responsibility of Subcommittee D01.31 on Pigment Specifications.
3
Current edition approved Dec. 1, 2003. Published December 2003. Originally Reagent Chemicals, American Chemical Society Specifications, American
approved in 1961. Last previous edition approved in 1986 as D 1844 – 86 (1999). Chemical Society, Washington, DC. For suggestions on the testing of reagents not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc., (USPC), Rockville,
the ASTM website. MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D1844–86 (2003)
5.2 Thoroughly mix pigment supplied as such and grind h. Filter, using paper pulp, and wash once with cold isopropyl
separated pigment to a fine powder in a mortar and pestle alcohol (50 %) containing 10 mL of H SO (sp gr 1.84)/100
2 4
before taking portions for analysis. mL.
8.4 Transfer the precipitate to the original beaker with 150
TOTAL LEAD AS LEAD OXIDE-GRAVIMETRIC mLofwater,add50mLoftheammoniumacetatesolution,and
METHOD boilthesolutionuntiltheleadsulfatedissolves.Filterwhilehot
throug
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

ASTM
ASTM D6131-17(2023)(Test Method)
Standard Test Method for Evaluating the Relative Tint Undertone of Titanium Dioxide Pigments

SIGNIFICANCE AND USE
5.1 This test method allows the user to make a determination of the blueness or yellowness of the tint undertone of titanium dioxide pigments, versus a reference pigment agreed upon by the parties to the test. This is an important measure of tone, since it gives both a measure of effective particle size, and quick approximation of the blue/yellow undertone that can be expected when a coating containing the titanium dioxide is tinted.  
5.2 Such matters as the vehicle for preparing the dispersions and the mechanical method of preparing the dispersion are left to the user. However, variation in these practices will lead to increased variance in the results, so users ought to fix these parameters, in-so-far as is possible, within any one laboratory. This will lead to reduced uncertainty of the results within that laboratory, and it is seldom that interlaboratory comparisons of this test result is needed.  
5.3 Each user must decide whether the loss of accuracy in his measurements due to variation of these parameters is negligibly small for the purpose for which the data are obtained.
SCOPE
1.1 This test method is intended to be used to determine the tint undertone (blue or yellow) of titanium dioxide pigments. This relates to the effective particle size of the pigment  
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 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.

  • Standard
    2 pages
    English language
    sale 15% off
ASTM
ASTM D2745-00(2023)(Test Method)
Standard Test Method for Relative Tinting Strength of White Pigments by Reflectance Measurements

SIGNIFICANCE AND USE
4.1 Tinting strength is one of the most important properties of a white pigment. This test method provides a means of testing this property for quality control.  
4.2 This test method is a referee method, and the vehicle for preparing the dispersion and the black for tinting are suggested, but others may be used provided both the purchaser and the seller agree to the changes.  
4.3 The results obtained with a muller do not necessarily agree with industrial situations where different dispersing conditions exist. However, dispersing with a muller is a fast, relatively inexpensive way of testing tinting strength for routine quality control.
SCOPE
1.1 This test method describes the procedure for determining the relative tinting strength of white pigments by reflectance measurements of black tints.  
1.2 This test method is applicable only for comparing the test pigment with a reference standard of the same type and grade.  
Note 1: Test Method D332 describes a procedure for visual assessment of blue-tinted samples.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 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.  
1.5 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.

  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D6580-17(2023)(Test Method)
Standard Test Method for The Determination of Metallic Zinc Content in Both Zinc Dust Pigment and in Cured Films of Zinc-Rich Coatings

SIGNIFICANCE AND USE
4.1 This test method is useful for determining the amount of metallic zinc in zinc dust pigment, and also in dried films of both inorganic and organic zinc-rich coatings. Test Methods D521 is an appropriate method for analyzing zinc dust, but has shortcomings when applied to samples of cured coatings.
SCOPE
1.1 This test method covers the determination by differential scanning calorimetry of the metallic zinc content of both zinc-dust pigment, and of dried films of zinc-rich coatings. This test method is applicable to both inorganic and organic zinc-rich coatings.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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.

  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D210-05(2023)(Specification)
Standard Specification for Bone Black Pigment

ABSTRACT
This specification covers bone black, ivory black, or drop black pigment. The pigment may be in dry form or in aqueous dispersion. Dry pigment shall be made by the calcinations of bones, unmixed with any other substance. Dry pigment shall compose of ash, ash insoluble in acids, and coarse particles. Pigment in aqueous dispersion shall be made by grinding the pigment with water, dispersing agent, biocide, fungicide, pH stabilizer, and defoamer. ASTM test methods shall be conducted for coarse particles, pigment and linseed oil in paste in oil, and mass color and tinting strength.
SCOPE
1.1 This specification covers the pigment commercially known as bone black, ivory black, or drop black. The pigment may be purchased in the dry form or as an aqueous dispersion.  
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 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.

  • Technical specification
    2 pages
    English language
    sale 15% off
ASTM
ASTM D6619-00(2023)(Practice)
Standard Practice for Incorporating Pigments by High Speed Dispersion

SIGNIFICANCE AND USE
3.1 High speed dispersion is a commonly used dispersion method in the coatings industry. For the purpose of this practice, “high speed” would normally be understood to be a range of RPM between 3 000 and 10 000. This practice provides a reference for its use, so that a producer and user can standardize on an incorporation technique. This will minimize differences in the millbase, and allow the interested parties to concentrate on the physical, chemical, or optical methods to be run.
SCOPE
1.1 This practice covers the dispersion of pigments using a laboratory size high-speed impeller mill. It is similar in technical content to ISO 8780-3.
Note 1: This practice is restricted to mill bases of moderately high viscosity due to either high vehicle concentration or high pigment concentration, or both, which can produce high shear force. It is not intended to provide a means of formulating either pilot plant or full-scale mill base compositions (scaling up the process from laboratory equipment to factory mills is not simple).  
1.2 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.  
1.3 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.

  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM D126-87(2023)(Test Method)
Standard Test Methods for Analysis of Yellow, Orange, and Green Pigments Containing Lead Chromate and Chromium Oxide Green

SIGNIFICANCE AND USE
4.1 These test methods are for analysis designed as an aid in quality of yellow, orange, and green pigments containing lead chromate and chromium oxide green. Some sections may be applicable to analysis of these pigments when extracted from whole paints.
SCOPE
1.1 These test methods cover procedures for the chemical analysis of yellow, orange, and green pigments containing lead chromate and chromium oxide green.  
1.2 The analytical procedures appear in the following order:    
Sections  
Chrome  Yellow, Chrome Orange, and Molybdate Orange  
Organic Colors and Lakes  
7  
Moisture and Other Volatile Matter  
8  
Matter Soluble in Water  
9  
Lead Chromate  
10 and 11  
Total Lead  
12  
Sulfate  
13 and 14  
Carbon Dioxide  
15  
Molybdenum  
16 and 17  
Extenders  
18 – 22  
Calculation of Substances Other than Insoluble Lead
Compounds  
23 and 24  
Pure  Chrome Green and Reduced Chrome Green  
Organic Colors and Lakes  
25  
Moisture and Other Volatile Matter  
26  
Matter Soluble in Water  
27  
Iron Blue  
28  
Lead Chromate  
29 and 30  
Barium Sulfate and Insoluble Siliceous Material  
31  
Total Lead  
32  
Sulfate  
33  
Calcium Oxide Soluble in Acid  
34 and 35  
Extenders  
36  
Calculation of Insoluble Lead Compounds  
37  
Chromium Oxide Green  
Organic Colors and Lakes  
38  
Moisture and Other Volatile Matter  
39  
Matter Soluble in Water  
40  
Total Chromium as Chromium Oxide  
41  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 This standard does not purport to address all of the safety problems, 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. Specific hazard statements are given in Note 3.  
1.5 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.

  • Standard
    8 pages
    English language
    sale 15% off
ASTM
ASTM D263-05(2023)(Specification)
Standard Specification for Chrome Oxide Green Pigment

ABSTRACT
This specification establishes the properties and requirements for the dry pigment commercially known as chrome oxide green. The pigment shall consist of practically pure chromium sesqui-oxide without any admixture. Specimens shall be sampled and tested adequately, and shall conform to the following composition requirements: total chromium; total water-soluble matter; moisture and other volatile matter; coarse particles (total residue retained on a No. 325 sieve); and organic colors or lakes. The pigments shall adhere to mass color, tint character, and tinting strength requirements as well.
SCOPE
1.1 This specification covers the dry pigment commercially known as chrome oxide green.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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.

  • Technical specification
    2 pages
    English language
    sale 15% off
ASTM
ASTM D279-02(2023)(Test Method)
Standard Test Methods for Bleeding of Pigments

SIGNIFICANCE AND USE
4.1 Test Method A determines the amount of color produced when the pigment is in direct contact with a selected solvent such as toluene. It is useful as a rapid, easily conducted test of the general bleeding characteristics of pigments.  
4.2 Test Method B determines the amount of color migration into a white film applied over a base coat containing the pigment. It may give a more practical evaluation of whether a pigment will meet specific requirements for bleed resistance.  
4.3 Both Test Method A and Test Method B measure the extent of bleed.
SCOPE
1.1 These test methods cover procedures for determining the bleeding characteristics of dry pigments by direct solvent extraction of the pigment and by overstriping a film with a white coating and observing for the color migration from the base coat containing the pigment.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 This standard does not purport to address all of the safety problems, 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.

  • Standard
    2 pages
    English language
    sale 15% off
ASTM
ASTM D185-07(2023)(Test Method)
Standard Test Methods for Coarse Particles in Pigments

SIGNIFICANCE AND USE
3.1 In production of paints, smoothness of the paint film is of paramount importance. Agglomerates or coarse particles larger than 45 μm are difficult to disperse and may prevent obtaining a smooth film. These test methods are a valuable quality control test for grading raw materials.
SCOPE
1.1 These test methods cover the determination of the amount of coarse particles in dry pigments.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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.

  • Standard
    2 pages
    English language
    sale 15% off
ASTM
ASTM D50-90(2023)(Test Method)
Standard Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese

SIGNIFICANCE AND USE
3.1 These test methods compile in one place, recommended procedures for analyzing inorganic colored pigments. These pigments are used extensively in paints, and for this reason their compositions are important to the formulators and user.
SCOPE
1.1 These test methods cover procedures for the chemical analysis of yellow, orange, red, and brown pigments containing iron and manganese. The test methods apply specifically to the following pigments: synthetic hydrated yellow iron oxide, yellow ocher, red and brown iron oxides, raw and burnt umber, raw and burnt sienna, and venetian red.  
1.2 The analytical procedures appear in the following order:    
ASTM  
Method  
Refer-  
Dry Pigments
Sections  
ences  
Moisture and Other Volatile Matter  
6  
D280  
Loss on Ignition  
7  
Coarse Particles  
8  
D185  
Matter Soluble in Water  
9  
D1208  
Organic Coloring Matter  
10  
Iron Oxide  
11 and 12  
Calcium Compounds (Reported as CaO)  
13 and 14  
Sulfates Soluble in Hydrochloric Acid  
15 and 16  
Lead Chromate (in Ochers)  
17  
Calcium Carbonate (in Venetian Red)  
18  
C25  
Manganese (in Siennas and Umbers)  
19 and 20  
Pigment Pastes in Oil  
Pigment Content  
21  
D1208  
Moisture and Other Volatile Matter  
22  
D1208  
Nonvolatile Matter in Vehicle  
23  
Moisture by Distillation  
24  
D1208  
Coarse Particles and Skins  
25  
D185  
Consistency (Stormer)  
26  
D562  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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 us.  
1.5 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.

  • Standard
    5 pages
    English language
    sale 15% off