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ASTM D3321-94(1998)

Historical Reaffirmation

Standard Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine Coolants

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1.1 This test method covers the use of a portable refractometer for determining the approximate freezing protection provided by ethylene and propylene glycol-based coolant solutions as used in engine cooling systems and special applications.

Note 1-Some instruments have a supplementary freezing protection scale for methoxypropanol coolants. Others carry a supplementary scale calibrated in specific gravity readings of sulfuric acid solutions so that the refractometer can be used to determine the charged condition of lead acid storage batteries.

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


SDO ASTM: ASTM International
Document Number D3321
Publication Date April 10, 1998
Language en - English
Page Count 3
Revision Level 94(1998)
Supercedes
Committee D15.03
Publish Date Document Id Type View
April 1, 2019 D3321-19 Revision
May 1, 2013 D3321-13 Revision
April 1, 2012 D3321-12 Revision
Sept. 1, 2023 D3321-19R23 Reaffirmation
Nov. 15, 2007 D3321-94R07 Reaffirmation
April 10, 1998 D3321-94R98 Reaffirmation
Aug. 15, 1994 D3321-94R02 Reaffirmation