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Last Updated: Jan 23, 2013
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ASTM D2713-91(2001)
Standard Test Method for Dryness of Propane (Valve Freeze Method)
Standard Test Method for Dryness of Propane (Valve Freeze Method)
D2713-91R01
ASTM|D2713-91R01|en-US
Standard Test Method for Dryness of Propane (Valve Freeze Method)
Standard
D2713 Standard Test Method for Dryness of Propane (Valve Freeze Method)>
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Significance and Use
This test is a functional test in which the water concentration in the product is related to product behavior characteristics in a pressure-reducing system of special design to arrive at a measure of product acceptability in common use applications. Experience has demonstrated that excessive water content (dissolved water) will cause freeze-up difficulties in pressure reducing systems.
Scope
1.1 This test method covers the measurement of the dryness of propane-type products such as, but not limited to, commercial propane (see Specification D1835).
Note 1--This test method is not applicable to propane-type products containing antifreeze agents. However, the relative freeze times of such materials tested by this procedure may be an indication of the tendency of these products to cause freezing in pressure reducing regulators.
1.2 The values stated in SI units are to be regarded as the standard. The values 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.