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ASTM D3321-19
Standard Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine CoolantsMore info
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 supplemental scale calibrated in density or specific gravity readings of sulfuric acid solutions so that the refractometer can be used to determine the charged condition of lead acid storage batteries.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| ICS | 17.180.30 : Optical measuring instruments |
| Number of pages | 4 |
| Replace | ASTM D3321-13 |
| Year | 2019 |
| Document history | ASTM D3321-13 ASTM D3321-12 ASTM D3321-94(2007) ASTM D3321-94(1998) ASTM D3321-94(2002) |
| Country | USA |
| Keyword | ASTM 3321;ASTM D3321;ASTM D3321;10.1520/D3321-19 |