ASTM D717-86(2014)
(Test Method)Standard Test Methods for Analysis of Magnesium Silicate Pigment
Standard Test Methods for Analysis of Magnesium Silicate Pigment
SIGNIFICANCE AND USE
3.1 These test methods may be used to confirm the stated SiO2, CaO, and MgO content of magnesium silicate for quality control.
SCOPE
1.1 These test methods cover the analysis of magnesium silicate 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 the safety concerns 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.
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Designation: D717 − 86 (Reapproved 2014)
Standard Test Methods for
1
Analysis of Magnesium Silicate Pigment
This standard is issued under the fixed designation D717; 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 4. Apparatus
1.1 These test methods cover the analysis of magnesium 4.1 Platinum Crucible.
silicate pigment.
4.2 Electric Furnace, capable of 1200°C.
1.2 The values stated in SI units are to be regarded as the
5. Purity of Reagents
standard. The values given in parentheses are for information
only.
5.1 Reagent grade chemicals shall be used in all tests.
Unless otherwise indicated, it is intended that all reagents shall
1.3 This standard does not purport to address the safety
conform to the specifications of the Committee on Analytical
concerns associated with its use. It is the responsibility of the
Reagents of the American Chemical Society, where such
user of this standard to establish appropriate safety and health
4
specifications are available. Other grades may be used, pro-
practices and determine the applicability of regulatory limita-
vided it is first ascertained that the reagent is of sufficiently
tions prior to use.
high purity to permit its use without lessening the accuracy of
2. Referenced Documents
the determination.
2
2.1 ASTM Standards:
5.2 Unless otherwise indicated, references to water shall be
3
D234 Specification for Raw Linseed Oil (Withdrawn 2007)
understood to mean Type II of Specification D1193.
D280 Test Methods for Hygroscopic Moisture (and Other
Matter Volatile Under the Test Conditions) in Pigments
SILICON DIOXIDE
D718 Test Methods for Analysis of Aluminum Silicate
6. Reagents
Pigment
D1193 Specification for Reagent Water
6.1 Hydrochloric Acid (sp gr 1.19)—Concentrated hydro-
D1208 Test Methods for Common Properties of Certain
chloric acid (HCl).
Pigments
6.2 Hydrochloric Acid (1+20)—Mix 1 volume of concen-
D2448 Test Method for Water-Soluble Salts in Pigments by
trated hydrochloric acid (HCl, sp gr 1.19) with 20 volumes of
Measuring the Specific Resistance of the Leachate of the
water.
Pigment
6.3 Hydrofluoric Acid (48 %)—Concentrated hydrofluoric
E97 Method of Test for Directional Reflectance Factor,
acid (HF).
45-Deg 0-Deg, of Opaque Specimens by Broad-Band
3
Filter Reflectometry (Withdrawn 1991)
6.4 Sodium Carbonate (Na CO ).
2 3
3. Significance and Use
6.5 Sulfuric Acid (sp gr 1.84—Concentrated sulfuric acid
(H SO ).
3.1 These test methods may be used to confirm the stated 2 4
SiO , CaO, and MgO content of magnesium silicate for quality
2
7. Procedure
control.
7.1 Transfer1gofthe sample weighed to 0.1 mg to a
1
platinum crucible and fuse with5gofNa CO until the entire
These test methods are under the jurisdiction of ASTM Committee D01 on
2 3
Paint and Related Coatings, Materials, and Applications and are the direct
contents of the crucible are in a molten state. Continue heating
responsibility of Subcommittee D01.31 on Pigment Specifications.
for 20 min. Keep a close-fitting platinum cover on the crucible
Current edition approved Dec. 1, 2014. Published December 2014. Originally
approved in 1943. Last previous edition approved in 2008 as D717 – 86 (2008).
DOI: 10.1520/D0717-86R14.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Reagent Chemicals, American Chemical Society Specifications, American
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Standards volume information, refer to the standard’s Document Summary page on listed by the American Chemical Society, see Analar Standards for Laboratory
the ASTM website. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
3
The last approved version of this historical standard is referenced on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
www.astm.org. MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D717 − 86 (2014)
during the fusion. When the fusion is complete, allow the 10. Procedure
crucible and contents to cool, and transfer to a 600-mL
10.1 If an appreciable residue remains after the treatment
porcelain casserole containing 200 mL of water (Note 1). Boil
with HF in accordance with 7.4, fuse the residue with a small
until the melt is disintegrated.
amount of K S O until it is dissolved. Leach the pyrosulfate
2 2 7
melt out of the crucible with water and combine the solution
NOTE 1—If, during the
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D717 − 86 (Reapproved 2008) D717 − 86 (Reapproved 2014)
Standard Test Methods for
1
Analysis of Magnesium Silicate Pigment
This standard is issued under the fixed designation D717; 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
1.1 These test methods cover the analysis of magnesium silicate 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 the safety concerns 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.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D234 Specification for Raw Linseed Oil (Withdrawn 2007)
D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
D718 Test Methods for Analysis of Aluminum Silicate Pigment
D1193 Specification for Reagent Water
D1208 Test Methods for Common Properties of Certain Pigments
D2448 Test Method for Water-Soluble Salts in Pigments by Measuring the Specific Resistance of the Leachate of the Pigment
E97 Method of Test for Directional Reflectance Factor, 45-Deg 0-Deg, of Opaque Specimens by Broad-Band Filter
3
Reflectometry (Withdrawn 1991)
3. Significance and Use
3.1 These test methods may be used to confirm the stated SiO , CaO, and MgO content of magnesium silicate for quality
2
control.
4. Apparatus
4.1 Platinum Crucible.
4.2 Electric Furnace, capable of 1200°C.
5. Purity of Reagents
5.1 Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all reagents shall conform
to the specifications of the Committee on Analytical Reagents of the American Chemical Society, where such specifications are
4
available. Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high purity to permit its use
without lessening the accuracy of the determination.
5.2 Unless otherwise indicated, references to water shall be understood to mean Type II of Specification D1193.
1
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.
Current edition approved Feb. 1, 2008Dec. 1, 2014. Published February 2008December 2014. Originally approved in 1943. Last previous edition approved in 20032008
as D717 - 86 (2003).D717 – 86 (2008). DOI: 10.1520/D0717-86R08.10.1520/D0717-86R14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Reagent Chemicals, American Chemical Society Specifications, American Chemical Society, Washington, DC. For suggestions on the testing of reagents not listed by
the American Chemical Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia and National
Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville, MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D717 − 86 (2014)
SILICON DIOXIDE
6. Reagents
6.1 Hydrochloric Acid (sp gr 1.19)—Concentrated hydrochloric acid (HCl).
6.2 Hydrochloric Acid (1+20)—Mix 1 volume of concentrated hydrochloric acid (HCl, sp gr 1.19) with 20 volumes of water.
6.3 Hydrofluoric Acid (48 %)—Concentrated hydrofluoric acid (HF).
6.4 Sodium Carbonate (Na CO ).
2 3
6.5 Sulfuric Acid (sp gr 1.84—Concentrated sulfuric acid (H SO ).
2 4
7. Procedure
7.1 Transfer 1 g of the sample weighed to 0.1 mg to a platinum crucible and fuse with 5 g of Na CO until the entire contents
2 3
of the crucible are in a molten state. Continue heating for 20 min. Keep a close-fitting platinum cover on the crucible during the
fusion. When the fusion is complete, allow the crucible and contents to cool, and transfer to a 600-
...
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