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ASTM D5540-94a(1999)

Historical Reaffirmation

Standard Practice for Flow Control and Temperature Control for On-Line Water Sampling and Analysis

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1.1 This practice covers the conditioning of a flowing water sample for the precise measurement of various chemical and physical parameters of the water, whether continuous or grab. This practice addresses the conditioning of both high- and low-temperature and pressure sample streams, whether from steam or water.

1.2 This practice provides procedures for the precise control of sample flow rate to minimize changes of the measured variable(s) due to flow changes.

1.3 This practice provides procedures for the precise control of sample temperature to minimize changes of the measured variable(s) due to temperature changes.

1.4 The values stated in either SI or inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 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 D5540
Publication Date June 10, 1999
Language en - English
Page Count 4
Revision Level 94a(1999)
Supercedes
Committee D19.03
Publish Date Document Id Type View
July 15, 2013 D5540-13 Revision
Oct. 1, 2008 D5540-08 Revision
July 1, 2021 D5540-13R21 Reaffirmation
June 10, 1999 D5540-94AR99 Reaffirmation
Sept. 15, 1994 D5540-94AR03 Reaffirmation