ASTM D632-12(2020)

Standard Specification for Sodium Chloride

SIGNIFICANCE AND USE
A1.2 Significance and Use
A1.2.1 The procedure for chemical analysis in this annex determines the total amount of chlorides present in the sample and expresses that value as sodium chloride.
A1.2.2 This rapid method of analysis does not distinguish between sodium chloride and other evaporite chloride compounds with ice-melting capabilities. Typical rock salt and solar salt sometimes contains small amounts of CaCl2, MgCl2, and KCl, depending on the source of the material. When this rapid method is used on continuing shipments from a known source, it will provide a fast, essentially accurate determination of the sodium chloride content of the material furnished. Thus, the need for testing by the referee method, Test Method E534, is reduced.
SCOPE
1.1 This specification covers sodium chloride intended for use as a deicer and for road construction or maintenance purposes.  
1.2 The values stated as SI units are to be regarded as the standard.  
1.3 For purposes of determining conformance to this specification, values for chemical analysis shall be rounded to the nearest 0.1 %, and values for grading shall be rounded to the nearest 1 %, in accordance with the rounding method in Practice E29.  
1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes shall not be considered as requirements of the specification.  
1.5 The following precautionary caveat pertains only to the test method in Annex A1 of this specification: 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.  
1.6 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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2020
• ICS: 71.060.50 - Salts
• ICS: 71.100.80 - Chemicals for purification of water
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.31 - Calcium and Sodium Chlorides and Other Deicing Materials

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:D632 −12 (Reapproved 2020)
Standard Specification for
1
Sodium Chloride
This standard is issued under the fixed designation D632; 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 C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
1.1 This specification covers sodium chloride intended for
E11 Specification for Woven Wire Test Sieve Cloth and Test
use as a deicer and for road construction or maintenance
Sieves
purposes.
E29 Practice for Using Significant Digits in Test Data to
1.2 The values stated as SI units are to be regarded as the
Determine Conformance with Specifications
standard.
E287 Specification for Laboratory Glass Graduated Burets
1.3 For purposes of determining conformance to this
E288 Specification for Laboratory Glass Volumetric Flasks
specification, values for chemical analysis shall be rounded to
E534 Test Methods for Chemical Analysis of Sodium Chlo-
the nearest 0.1 %, and values for grading shall be rounded to
ride
the nearest 1 %, in accordance with the rounding method in
Practice E29.
3. Classification
1.4 The text of this specification references notes and
3.1 This specification covers sodium chloride obtained from
footnotes that provide explanatory material. These notes and
natural deposits (rock salt) or produced by man (evaporated,
footnotes shall not be considered as requirements of the
solar, other) and recognizes two types and two grades as
specification.
follows:
1.5 The following precautionary caveat pertains only to the
3.1.1 Type I—Used primarily as a pavement deicer or in
test method in Annex A1 of this specification: This standard
aggregate stabilization.
does not purport to address all of the safety concerns, if any,
3.1.1.1 Grade 1—Standard grading (Note 1).
associatedwithitsuse.Itistheresponsibilityoftheuserofthis
3.1.1.2 Grade 2—Special grading (Note 1).
standard to establish appropriate safety, health, and environ-
3.1.2 Type II—Used in aggregate stabilization or for pur-
mental practices and determine the applicability of regulatory
poses other than deicing.
limitations prior to use.
1.6 This international standard was developed in accor-
NOTE 1—Grade 1 provides a particle grading for general application,
dance with internationally recognized principles on standard- and has been found by latest research to be most effective for ice control
and skid resistance under most conditions. Grade 2 is the grading typical
ization established in the Decision on Principles for the
of salt produced in the western United States and is available in states of
Development of International Standards, Guides and Recom-
the Rocky Mountains region and west, which may be preferred by
mendations issued by the World Trade Organization Technical
purchasers in that area.
Barriers to Trade (TBT) Committee.
4. Chemical Requirements
2. Referenced Documents
2
4.1 The sodium chloride shall conform to the following
2.1 ASTM Standards:
requirement for chemical composition, except for the tolerance
C136/C136M Test Method for Sieve Analysis of Fine and
stated in 6.1 and 6.2:
Coarse Aggregates
Sodium chloride (NaCl), min, % 95.0
1
This specification is under the jurisdiction of ASTM Committee D04 on Road
5. Physical Requirements
and Paving Materials and is the direct responsibility of Subcommittee D04.31 on
Calcium and Sodium Chlorides and Other Deicing Materials.
5.1 Grading:
Current edition approved Nov. 1, 2020. Published November 2020. Originally
5.1.1 Type I—The grading of Type I sodium chloride, when
approved in 1941. Last previous edition approved in 2012 as D632 – 12. DOI:
10.1520/D0632-12R20.
tested by means of laboratory sieves conforming to Specifica-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tion E11, shall conform to the following requirements for
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
particle size distribution, except for the tolerance stated in 6.1
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. and 6.1.1:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D632−12 (2020)
9. Test Methods
Mass % Passing
Sieve Size Grade 1 Grade 2
9.1 Chemical Analysis—Test for compliance with the re-
3
19.0mm( ⁄4 in.) . 100
1
12.5mm( ⁄2 in.) 100 . quirements for chemical composition in accordance with the
3
9.5mm( ⁄8 in.) 95 to 100 .
following methods:
4.75 mm (No. 4) 20 to 90 20 to 100
9.1.1 Routine
...

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: D632 − 12 D632 − 12 (Reapproved 2020)
Standard Specification for
1
Sodium Chloride
This standard is issued under the fixed designation D632; 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 This specification covers sodium chloride intended for use as a deicer and for road construction or maintenance purposes.
1.2 The values stated as SI units are to be regarded as the standard.
1.3 For purposes of determining conformance to this specification, values for chemical analysis shall be rounded to the nearest
0.1 %, and values for grading shall be rounded to the nearest 1 %, in accordance with the rounding method in Practice E29.
1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes shall
not be considered as requirements of the specification.
1.5 The following precautionary caveat pertains only to the test method in Annex A1, of this specification: 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 safety, health, and healthenvironmental practices and determine the applicability of regulatory
limitations prior to use.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C136C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E287 Specification for Laboratory Glass Graduated Burets
E288 Specification for Laboratory Glass Volumetric Flasks
E534 Test Methods for Chemical Analysis of Sodium Chloride
1
This specification is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.31 on Calcium
and Sodium Chlorides and Other Deicing Materials.
Current edition approved April 1, 2012Nov. 1, 2020. Published April 2012November 2020. Originally approved in 1941. Last previous edition approved in 20012012 as
D632 – 01D632 – 12. which was withdrawn in January 2010 and reinstated in April 2012. DOI: 10.1520/D0632-12.DOI: 10.1520/D0632-12R20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D632 − 12 (2020)
3. Classification
3.1 This specification covers sodium chloride obtained from natural deposits (rock salt) or produced by man (evaporated, solar,
other) and recognizes two types and two grades as follows:
3.1.1 Type I—Used primarily as a pavement deicer or in aggregate stabilization.
3.1.1.1 Grade 1—Standard grading (Note 1).
3.1.1.2 Grade 2—Special grading (Note 1).
3.1.2 Type II—Used in aggregate stabilization or for purposes other than deicing.
NOTE 1—Grade 1 provides a particle grading for general application, and has been found by latest research to be most effective for ice control and skid
resistance under most conditions. Grade 2 is the grading typical of salt produced in the Westernwestern United States and is available in states of the
Rocky Mountains Regionregion and west, which may be preferred by purchasers in that area.
4. Chemical Requirements
4.1 The sodium chloride shall conform to the following requirement for chemical composition, except for the tolerance stated in
6.1 and 6.2:
Sodium chloride (NaCl), min, % 95.0
5. Physical Requirements
5.1 Grading:
5.1.1 Type I—The grading of Type I sodium chloride, when tested by means of laboratory sieves conforming to Specification
E11E11,,
...