1. Scope

1.1 This practice covers the sampling of saturated and superheated steam. It is applicable to steam produced in fossil fired and nuclear boilers or by any other process means that is at a pressure sufficiently above atmospheric to establish representative sample flow. It is also applicable to steam at lower and subatmospheric pressures for which means must be provided to establish representative flow.

1.2 For information on specialized sampling equipment, tests or methods of analysis, reference should be made to the Annual Book of ASTM Standards , Vols 11.01 and 11.02, relating to water.

1.3 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the inch-pound units are shown in parentheses. The values stated in each system are not exact equivalents. Therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

1.4 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

A269 Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

A335/A335M Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

D1129 Terminology Relating to Water

D3370 Practices for Sampling Water from Closed Conduits

D5540 Practice for Flow Control and Temperature Control for On-Line Water Sampling and Analysis

Keywords

isokinetic sampling; sample cooler; sampling; sampling nozzles; saturated steam; superheated steam: Isokinetic sampling; Sampling water analysis applications; Saturated steam; Steam; Superheated steam; Purity analysis--water; Quality control (QC)--water;

ICS Code

ICS Number Code 13.060.30 (Sewage water)

DOI: 10.1520/D1066-97R01

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