ASTM D632-99

Standard Specification for Sodium Chloride

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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Jun-2001
• 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

Relations

• Replaced By: ASTM D632-00 - Standard Specification for Sodium Chloride
• Effective Date: 10-Jun-2001
• Referred By: ASTM G109-23 - Standard Test Methods for Determining Effects of Chemical Admixtures on Corrosion of Embedded Steel Reinforcement in Concrete Exposed to Chloride Environments
• Effective Date: 10-Jun-2001
• Referred By: ASTM G180-23 - Standard Test Method for Corrosion Inhibiting Admixtures for Steel in Concrete by Polarization Resistance in Cementitious Slurries
• Effective Date: 10-Jun-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 632 – 99
Standard Specification for
Sodium Chloride
This standard is issued under the fixed designation D 632; 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 3. Classification
1.1 This specification covers sodium chloride intended for 3.1 This specification covers sodium chloride obtained from
use as a deicer and for road construction or maintenance natural deposits (rock salt) or produced by man (evaporated,
purposes. solar, other) and recognizes two types and two grades as
1.2 The values stated as SI units are to be regarded as the follows:
standard. 3.1.1 Type I—Used primarily as a pavement deicer or in
1.3 For purposes of determining conformance to this speci- aggregate stabilization.
fication, values for chemical analysis shall be rounded to the 3.1.1.1 Grade 1—Standard grading (Note 1).
nearest 0.1 %, and values for grading shall be rounded to the 3.1.1.2 Grade 2—Special grading (Note 1).
nearest 1 %, in accordance with the rounding method in 3.1.2 Type II—Used in aggregate stabilization or for pur-
Practice E 29. poses other than deicing.
1.4 The text of this specification references notes and
NOTE 1—Grade 1 provides a particle grading for general application,
footnotes that provide explanatory material. These notes and
and has been found by latest research to be most effective for ice control
footnotes shall not be considered as requirements of the
and skid resistance under most conditions. Grade 2 is the grading typical
specification. of salt produced in the Western United States and is available in states of
the Rocky Mountains Region and west, which may be preferred by
1.5 The following precautionary caveat pertains only to the
purchasers in that area.
test method in Annex A1, of this specification: This standard
does not purport to address all of the safety concerns, if any,
4. Chemical Requirements
associated with its use. It is the responsibility of the user of this
4.1 The sodium chloride shall conform to the following
standard to establish appropriate safety and health practices
requirement for chemical composition, except for the tolerance
and determine the applicability of regulatory limitations prior
stated in 6.1 and 6.2:
to use.
Sodium chloride (NaCl), min, % 95.0
2. Referenced Documents
5. Physical Requirements
2.1 ASTM Standards:
5.1 Grading:
C 136 Test Method for Sieve Analysis of Fine and Coarse
2 5.1.1 Type I—The grading of Type I sodium chloride, when
Aggregates
tested by means of laboratory sieves conforming to Specifica-
C 670 Practice for Preparing Precision and Bias Statements
2 tion E 11, shall conform to the following requirements for
for Test Methods for Construction Materials
particle size distribution, except for the tolerance stated in 6.1
E 29 Practice for Using Significant Digits in Test Data to
3 and 6.1.1:
Determine Conformance with Specifications
3 Mass % Passing
E 287 Specification for Laboratory Glass Graduated Burets
Sieve Size Grade 1 Grade 2
E 288 Specification for Lavoratory Glass Volumetric 3
19.0 mm ( ⁄4 in.) . 100
Flasks 12.5 mm ( ⁄2 in.) 100 .
9.5 mm ( ⁄8 in.) 95 to 100 .
E 534 Test Method for Chemical Analysis of Sodium Chlo-
4.75 mm (No. 4) 20 to 90 20 to 100
ride
2.36 mm (No. 8) 10 to 60 10 to 60
600 μm (No. 30) 0 to 15 0 to 15
5.1.2 Type II—The grading of Type II sodium chloride shall
This specification is under the jurisdiction of ASTM Committee D-4 on Road
conform to the grading requirements imposed or permitted by
and Paving Materials and is the direct responsibility of Subcommittee D04.31 on
the purchaser under conditions of the intended use.
Calcium and Sodium Chlorides and Other Deicing Materials.
Current edition approved Aug. 10, 1999. Published September 1999. Originally
6. Permissible Variations
published as D 632 – 41. Last previous edition D 632 – 84 (1994).
Annual Book of ASTM Standards, Vol 04.02.
6.1 In the case of sodium chloride sampled after delivery to
Annual Book of ASTM Standards, Vol 14.02.
4 the purchaser, tolerances from the foregoing specified values
Annual Book of ASTM Standards, Vol 15.05.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 632
shall be allowed as follows: 9.1.2 Referee Testing—In case of controversy, determine the
6.1.1 Grading—5 percentage points on the maximum value chemical composition of the sample, using the current version
for the range for each sieve size, except the 12.5 mm ( ⁄2 in.) of Test Method E 534.
3 3
and 9.5 mm ( ⁄8 in.) for Grade 1 and 19.0 mm ( ⁄4 in.) for Grade 9.2 Grading shall be determined by Test Method C 136.
2.
10. Inspection
6.1.2 Chemical Composition—0.5 percentage point.
10.1 The purchaser or his representative shall be provided
7. Condition
free entry and necessary facilities at the production plant or
7.1 The sodium chloride shall arrive at the purchaser’s
storage area if he elects to sample sodium chloride at the
delivery point in a free-flowing and usable condition.
source.
8. Sampling
11. Rejection and Rehearing
8.1 Not less than three sample increments shall be selected
11.1 The sodium chloride shall be subject to rejection if it
at random from the lot (Note 2). Each increment shall be
fails to conform to any of the requirements of this specification.
obtained by scraping aside the top layer of material to a depth
11.2 In the case of failure to meet the requirements on the
of at least 25 mm (1 in.) and taking a 500-g (approximately
basis of an initial sample of a lot represented, two additional
1-lb) quantity of sodium chloride to a depth of at least 150 mm
samples shall be taken from the lot and tested. If both
(6 in.). Sampling shall be done by means of a sampling thief or
additional samples meet the requirements, the lot shall be
other method that will ensure a representative cross section of
accepted.
the material. The sample increments shall be thoroughly mixed
12. Packaging and Marking
to constitute a composite sample representative of the lot.
12.1 The sodium chloride shall be delivered in bags or other
NOTE 2—A lot may be an amount agreed upon between purchaser and
containers acceptable to the purchaser, or in bulk lots. The
supplier at the time of purchase.
name of the producer and the net weight shall be legibly
9. Test Methods
marked on each bag or container, or in the case of bulk lots, on
the shipping or delivery report.
9.1 Chemical Analysis—Test for compliance with the re-
quirements for chemical composition in accordance with the
13. Keywords
following methods:
9.1.1 Routine Control—Use of the “Rapid Method” in 13.1 salt; snow and ice removal; sodium chloride; stabiliza-
Annex A1 is permitted for routine control and approval. tion; winter maintenance
ANNEX
(Mandatory Information)
A1. RAPID METHOD OF ANALYSIS FOR SODIUM CHLORIDE
A1.1 Scope A1.3 Apparatus
A1.3.1 Glassware—Standard weighing bottles, volumetric
A1.1.1 This annex covers a rapid method for chemical
flasks (conforming to Specification E 288, Class C, or better),
analysis of sodium chloride.
and burets (conforming to Specifica
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