ASTM D6301-08
(Practice)Standard Practice for Collection of On-Line Composite Samples of Suspended Solids and Ionic Solids in Process Water
Standard Practice for Collection of On-Line Composite Samples of Suspended Solids and Ionic Solids in Process Water
SIGNIFICANCE AND USE
The transport of any suspended solids or corrosion products from the preboiler cycle has been shown to be detrimental to all types of steam generating equipment. Corrosion product transport as low as 10 ppb can have significant impact on steam generators performance.
Deposited corrosion products on PWR steam generator tubes can reduce heat transfer, and, if the deposit is sufficiently thick, can provide a local area for impurities in the bulk water to concentrate, resulting in a corrosive environment. In BWR plants, the transport of corrosion products can cause fuel failure, out of core radiation problems from activation reactions, and other material related problems.
In fossil plants, the transport of corrosion products can reduce heat transfer in the boilers leading to tube failures from overheating. The removal of these corrosion products by chemical cleaning is expensive and potentially harmful to the boiler tubes.
Normally, grab samples are not sensitive enough to detect changes in the level of corrosion product transport. Also, system transients may be missed by only taking grab samples. An integrated sample over time will increase the sensitivity for detecting the corrosion products and provide a better understanding of the total corrosion product transport to steam generators.
SCOPE
1.1 This practice is applicable for sampling condensed steam or water, such as boiler feedwater, for the collection of suspended solids and (optional) ionic solids using a 0.45-μm membrane filter (suspended solids) and ion exchange media (ionic solids). As the major suspended component found in most boiler feedwaters is some form of corrosion product from the preboiler system, the device used for this practice is commonly called a corrosion product sampler.
1.2 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.
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Designation:D6301 −08
StandardPractice for
Collection of On-Line Composite Samples of Suspended
1
Solids and Ionic Solids in Process Water
This standard is issued under the fixed designation D6301; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This practice is applicable for sampling condensed 3.1 Definitions—For definitions of terms used in this
steam or water, such as boiler feedwater, for the collection of practice, refer to Terminology D1129.
suspended solids and (optional) ionic solids using a 0.45-µm
3.2 Definitions of Terms Specific to This Standard:
membrane filter (suspended solids) and ion exchange media
3.2.1 corrosion product sampler, n—a device used to collect
(ionic solids). As the major suspended component found in
integrated samples of suspended solids and (as an option) ionic
most boiler feedwaters is some form of corrosion product from
solids. It consists of a flow totalizer that accurately measures
the preboiler system, the device used for this practice is
the amount of sample passing through the device and a
commonly called a corrosion product sampler.
0.45-µm pore size membrane filter. Adding a second filter for
1.2 This standard does not purport to address all of the
ion exchange resin impregnated membranes allows for collect-
safety concerns, if any, associated with its use. It is the ing ionic solids.
responsibility of the user of this standard to establish appro-
3.2.2 ionic solids, n—includes all matter that will pass
priate safety and health practices and determine the applica-
through a 0.45-µm pore size filter and may be captured on
bility of regulatory limitations prior to use.
anion, or cation ion exchange membranes, or both.
3.2.3 suspended solids, n—includes all matter that is re-
2. Referenced Documents
moved by a 0.45-µm pore size filter.
2
2.1 ASTM Standards:
4. Summary of Practice
D1066 Practice for Sampling Steam
D1129 Terminology Relating to Water 4.1 A typical sampling apparatus, or corrosion product
D1193 Specification for Reagent Water sampler, is used to obtain integrated, representative samples of
D1971 Practices for Digestion of Water Samples for Deter- suspended solids and ionic solids using a 0.45-µm membrane
minationofMetalsbyFlameAtomicAbsorption,Graphite filter and ion exchange membranes. The sampling is accom-
Furnace Atomic Absorption, Plasma Emission plished at system operating pressure or after pressure
Spectroscopy, or Plasma Mass Spectrometry reduction, and sample temperature of ≤50°C. The practice
D2332 Practice for Analysis of Water-Formed Deposits by utilizesamodifiedstainlesssteelhighpressurefilterhousingto
Wavelength-Dispersive X-Ray Fluorescence accommodate a 47-mm diameter filter (for suspended solids)
D2777 Practice for Determination of Precision and Bias of and if desired, ion exchange membranes (for ionic solids). The
Applicable Test Methods of Committee D19 on Water
sample collection system (corrosion product sampler) is de-
D3370 Practices for Sampling Water from Closed Conduits signed and operated specifically for quantitative collection of
D3864 Guide for Continual On-Line Monitoring Systems
suspended solids and ionic solids. An important feature of the
for Water Analysis sampler is the flow totalizer, which accurately determines the
total volume of sample that has passed through the sampler,
regardless of changes in flowrate or pressure during the
1 collection period. Control and pressure reducing valves and
This practice is under the jurisdiction ofASTM Committee D19 on Water and
is the direct responsibility of Subcommittee D19.03 on Sampling Water and
metering devices are downstream of the filter housing to
Water-Formed Deposits, Analysis of Water for Power Generation and Process Use,
eliminate the possible contribution of suspended solids and
On-Line Water Analysis, and Surveillance of Water.
ionic solids from these components to the sample stream.
Current edition approved Oct. 1, 2008. Published October 2008. Originally
Additional flow may bypass the filter housing, so that flows
approved in 1998. Last previous edition approved in 2003 as D6301 – 03. DOI:
10.1520/D6301-08.
within the sample lines are maintained within required range
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
(see Guide D3864). If a single sampling point is not represen-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
tativeduetolackofhomogeneityintheprocessfluid(thewater
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. being sampled), multiple poi
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6301–03 Designation: D 6301 – 08
Standard Practice for
the Collection of Samples of Filterable and Nonfilterable
Matter in WaterCollection of On-Line Composite Samples of
1
Suspended Solids and Ionic Solids in Process Water
This standard is issued under the fixed designation D 6301; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice is applicable for sampling condensed steam or water, such as boiler feedwater, for the collection of filterable
suspended solids and (optional) nonfilterable matterionic solids using a 0.45-µm membrane filter (filterable matter)(suspended
solids) and ion exchange media (nonfilterable matter).(ionic solids). As the major filterable containmentsuspended component
found in most boiler feedwaters is some form of corrosion product from the preboiler system, the device used for this practice is
commonly called a corrosion product sampler.
1.2 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
2
2.1 ASTM Standards:
D 1066 Practice for Sampling Steam
D 1129 Terminology Relating to Water D1192Guide for Equipment for Sampling Water and Steam in Closed Conduits
D 1193 Specification for Reagent Water
D 1971 Practices for Digestion of Water Samples for Determination of Metals by FlameAtomicAbsorption, Graphite Furnace
Atomic Absorption, Plasma Emission Spectroscopy, or Plasma Mass Spectrometry
D 2332 Practice for Analysis of Water-Formed Deposits by Wavelength-Dispersive X-Ray Fluorescence
D 2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D 3370 Practices for Sampling Water from Closed Conduits
D 3864 Guide for Continual On-Line Monitoring Systems for Water Analysis
3. Terminology
3.1 Definitions—For definitions of terms used in this practice, refer to Terminology D 1129.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 corrosion product sampler, n—adeviceusedtocollectintegratedsamplesoffilterablesuspendedsolidsand(asanoption)
nonfilterable matter.ionic solids. It consists of a flow totalizer that accurately measures the amount of sample passing through the
device and a 0.45-µm pore size membrane filter.Adding a second filter for ion exchange resin impregnated membranes allows for
collecting nonfilterable matter.ionic solids.
3.2.2 filterable matterionicsolids, n—includesallmatterthatisremovedbya0.45-µmporesizefilter.—includesallmatterthat
will pass through a 0.45-µm pore size filter and may be captured on anion, or cation ion exchange membranes, or both.
3.2.3 nonfilterable mattersuspended solids, n—includes all matter that will pass through a 0.45-µm pore size filter and may be
captured on anion, or cation ion exchange membranes, or both. —includes all matter that is removed by a 0.45-µm pore size filter.
4. Summary of Practice
4.1 Atypical sampling apparatus, or corrosion product sampler, is used to obtain integrated, representative samples of filterable
suspendedsolidsandnonfilterablematterionicsolidsusinga0.45-µmmembranefilterandionexchangemembranes.Thesampling
1
This practice is under the jurisdiction of ASTM Committee D19 on Water and is the direct responsibility of Subcommittee D19.03 on Sampling of Water and
Water-fFormed Deposits, Analysis of Water for Power Generation and Process Use, On-Line Water Analysis, and Surveillance of Water.
Current edition approvedAug. 10, 2003.Oct. 1, 2008. Published September 2003.October 2008. Originally approved in 1998. Last previous edition approved in 19982003
as D6301–98.D 6301 – 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6301–08
FIG. 1 Simplified Flow Diagram for Corrosion Product Sampler
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D6301–08
is acco
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