Standard Test Method for
Use of the Refractometer for Field Test Determination of the
Freezing Point of Aqueous Engine Coolants1
This standard is issued under the fixed designation D 3321; 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.
Click below to download Astm D 3321 – 94 (Reapproved 2002) pdf free
Click here to download Astm D 3320 – 00 Pdf Free Download