ASTM D5540-94a(1999)
Historical Standard: ASTM D5540-94a(1999) Standard Practice for Flow Control and Temperature Control for On-Line Water Sampling and Analysis
SUPERSEDED (see Active link, below)
ASTM D5540
1. Scope
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D1066 Practice for Sampling Steam
D1129 Terminology Relating to Water
D3370 Practices for Sampling Water from Closed Conduits
D3864 Guide for Continual On-Line Monitoring Systems for Water Analysis
Keywords
crud; flow control; ionic deposition; on-line analysis; pressure reduction; sample conditioning; sample cooler; temperature compensation; temperature control ;
ICS Code
ICS Number Code 13.060.10 (Water of natural resources); 17.120.10 (Flow in closed conduits)
DOI: 10.1520/D5540-94AR99
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