ASTM D1192-98
(Guide)Standard Guide for Equipment for Sampling Water and Steam in Closed Conduits (Withdrawn 2003)
Standard Guide for Equipment for Sampling Water and Steam in Closed Conduits (Withdrawn 2003)
SCOPE
1.1 This specification covers only that equipment commonly used for the sampling of water and steam in closed conduits. It does not cover specialized equipment required for and unique to a specific test or method of analysis. Items such as valves, fittings, piping/tubing, cooling coils and condensers, filters, pumps, sample containers, and packaging materials are included, but items such as sampling nozzles that are used for obtaining steam or water samples from their source and apparatus used in subsequent methods of test and analysis are excluded.
1.2 For information on specialized sampling equipment or tests, or both, or methods of analysis, reference should be made to the Annual Book of ASTM Standards relating to water.
1.3 The following safety hazards caveat pertains only to the test methods portion of this specification. 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 . For specific safety precautions, see 4.2.2.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 1192 – 98
Standard Guide for
Equipment for Sampling Water and Steam in Closed
1
Conduits
This standard is issued under the fixed designation D 1192; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
5
1. Scope for Preservation of Organic Constituents
4
D4453 Practice for Handling of Ultra-Pure Water Samples
1.1 This guide covers only that equipment commonly used
D5540 Practice for Flow Control and Temperature Control
for the sampling of water and steam in closed conduits. It does
4
for On-Line Water Sampling and Analysis
not cover specialized equipment required for and unique to a
specific test or method of analysis. Items such as valves,
3. Terminology
fittings, piping/tubing, cooling coils and condensers, filters,
3.1 Definitions—For definitions of terms used in this guide,
pumps, sample containers, and packaging materials are in-
see Terminology D 1129.
cluded, but items such as sampling nozzles that are used for
3.2 Definitions of Terms Specific to This Standard:
obtaining steam or water samples from their source and
3.2.1 sample cooler—small heat exchanger designed to
apparatus used in subsequent methods of test and analysis are
provide primary or secondary cooling, or both, of small process
excluded.
sampling streams of water or steam.
1.2 For information on specialized sampling equipment or
3.2.2 pressure reducer—device designed to reduce pressure,
tests, or both, or methods of analysis, reference should be made
2 and therefore control flow, of cooled sample to a pressure level
to the Annual Book of ASTM Standards relating to water.
where it can easily be regulated.
1.3 The following safety hazards caveat pertains only to the
3.2.3 back pressure regulator—device designed to maintain
test methods portion of this guide. This standard does not
a constant pressure upstream of itself (variable or fixed back
purport to address all of the safety concerns, if any, associated
pressure regulators are available) to maintain constant flow to
with its use. It is the responsibility of the user of this standard
analyzers.
to establish appropriate safety and health practices and
3.2.4 head cup—method used to achieve constant pressure
determine the applicability of regulatory limitations prior to
(see back pressure regulator). It incorporates plumbing of the
use. For specific safety precautions, see 4.2.2.
sample to a selected height above the inlet to the analyzer inlet
2. Referenced Documents line(s) to achieve the required inlet pressure for the analyzers.
It is occasionally used downstream of colorimetric analyzers in
2.1 ASTM Standards:
order to increase sample flow past the analyzer. The sample
A106 Specification for Seamless Carbon Steel Pipe for
3
flows to an open cup with an overflow. This fixed head
High-Temperature Service
provides the constant pressure, assuming inlet flow to the head
A179/A179M Specification for Seamless Cold-Drawn
3
cup exceeds outlet flow to the grab sample and analyzers.
Low-Carbon Steel Heat-Exchanger and Condenser Tubes
3.2.4.1 Discussion—Contemporary designs of back pres-
A269 Specification for Seamless and Welded Austenitic
3
sure regulators provide excellent sensitivity to pressure
Stainless Steel Tubing for General Service
changes and have limited the need for head cups and the
A335/A335M Specification for Seamless Ferritic Alloy-
3
concurrent space and maintenance problems as well as sample
Steel Pipe for High-Temperature Service
4 contamination potential.
D1066 Practice for Sampling Steam
4
3.2.5 variable rod in tube orifice—type of pressure reducer
D1129 Terminology Relating to Water
4 that uses a retractable tapered rod inside a reamed tube to
D3370 Practices for Sampling Water from Closed Conduits
provide a variable orifice for pressure reduction that is parallel
D3694 Practices for Preparation of Sample Containers and
with the sample flow. This eliminates wear of the orifice and
provides variable pressure reduction and flow.
1
This guide is under the jurisdiction of ASTM Committee D-19 on Water and is
the direct responsibility of Subcommittee D19.03 on Sampling of Water and
4. Materials and Manufacture
Water-Formed Deposits, Surveillance of Water, and Flow Measurement of Water.
4.1 Sample Lines:
Current edition approved July 10, 1998. Published November 1998. Originally
published as D 1192 – 94. Last previous edition D 1192 – 95.
4.1.1 General—Sample lines should be designed so that the
2
Annual Book of ASTM Standards, Vols 11.01 and 11.02.
3
Annual Book of ASTM Standards, Vol 01.01.
4
Annual Book of ASTM Standards, Vol 11.01.
5
Annual Book of ASTM Standards, Vol 11.02.
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