ASTM D 632:2012

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 E 29 . 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. A1.1.1 This annex covers a rapid method for chemical analysis of sodium chloride.

71.060.50, 71.100.80