ASTM D887-08
(Practice)Standard Practices for Sampling Water-Formed Deposits
Standard Practices for Sampling Water-Formed Deposits
SIGNIFICANCE AND USE
The goal of sampling is to obtain for analysis a portion of the whole that is representative. The most critical factors are the selection of sampling areas and number of samples, the method used for sampling, and the maintenance of the integrity of the sample prior to analysis. Analysis of water-formed deposits should give valuable information concerning cycle system chemistry, component corrosion, erosion, the failure mechanism, the need for chemical cleaning, the method of chemical cleaning, localized cycle corrosion, boiler carryover, flow patterns in a turbine, and the rate of radiation build-up. Some sources of water-formed deposits are cycle corrosion products, make-up water contaminants, and condenser cooling water contaminants.
SCOPE
1.1 These practices cover the sampling of water-formed deposits for chemical, physical, biological, or radiological analysis. The practices cover both field and laboratory sampling. It also defines the various types of deposits. The following practices are included:
Sections Practice A—Sampling Water-Formed Deposits From Tubing
of Steam Generators and Heat Exchangers8 to 10 Practice B—Sampling Water-Formed Deposits From Steam
Turbines 11 to 14
1.2 The general procedures of selection and removal of deposits given here can be applied to a variety of surfaces that are subject to water-formed deposits. However, the investigator must resort to his individual experience and judgment in applying these procedures to his specific problem.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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. See Section 7, 9.8, 9.8.4.6, and 9.14 for specific hazards statements.
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Designation: D887 − 08
StandardPractices for
1
Sampling Water-Formed Deposits
This standard is issued under the fixed designation D887; 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 D1193 Specification for Reagent Water
D1245 Practice for Examination of Water-Formed Deposits
1.1 These practices cover the sampling of water-formed
by Chemical Microscopy
deposits for chemical, physical, biological, or radiological
D1293 Test Methods for pH of Water
analysis. The practices cover both field and laboratory sam-
D2331 Practices for Preparation and Preliminary Testing of
pling. It also defines the various types of deposits. The
Water-Formed Deposits
following practices are included:
D2332 Practice for Analysis of Water-Formed Deposits by
Sections
Wavelength-Dispersive X-Ray Fluorescence
Practice A—Sampling Water-Formed Deposits From Tubing 8to10
of Steam Generators and Heat Exchangers D3483 TestMethodsforAccumulatedDepositioninaSteam
Practice B—Sampling Water-Formed Deposits From Steam 11 to 14
Generator Tube
Turbines
D4412 Test Methods for Sulfate-Reducing Bacteria inWater
1.2 The general procedures of selection and removal of
and Water-Formed Deposits
deposits given here can be applied to a variety of surfaces that
aresubjecttowater-formeddeposits.However,theinvestigator
3. Terminology
must resort to his individual experience and judgment in
3.1 Definitions of Terms Specific to This Standard:
applying these procedures to his specific problem.
3.1.1 biological deposits—water-formed deposits of organ-
1.3 The values stated in inch-pound units are to be regarded
isms or the products of their life processes.
as standard. The values given in parentheses are mathematical
3.1.1.1 The biological deposits may be composed of micro-
conversions to SI units that are provided for information only
scopicorganisms,asinslimes,orofmacroscopictypessuchas
and are not considered standard.
barnacles or mussels. Slimes are usually composed of deposits
1.4 This standard does not purport to address all of the of a gelatinous or filamentous nature.
safety concerns, if any, associated with its use. It is the
3.1.2 corrosion products—a result of chemical or electro-
responsibility of the user of this standard to establish appro- chemical reaction between a metal and its environment.
priate safety and health practices and determine the applica-
3.1.2.1 A corrosion deposit resulting from the action of
bility of regulatory limitations prior to use. See Section 7, 9.8, water, such as rust, usually consists of insoluble material
9.8.4.6, and 9.14 for specific hazards statements.
deposited on or near the corroded area; corrosion products
may, however, be deposited a considerable distance from the
2. Referenced Documents
point at which the metal is undergoing attack.
2
3.1.3 scale—a deposit formed from solution directly in
2.1 ASTM Standards:
place upon a surface.
D512 Test Methods for Chloride Ion In Water
3.1.3.1 Scale is a deposit that usually will retain its physical
D934 Practices for Identification of Crystalline Compounds
shape when mechanical means are used to remove it from the
in Water-Formed Deposits By X-Ray Diffraction
surface on which it is deposited. Scale, which may or may not
D1129 Terminology Relating to Water
adhere to the underlying surface, is usually crystalline and
dense, frequently laminated, and occasionally columnar in
1 structure.
These practices are under the jurisdiction of ASTM Committee D19 on Water
and are the direct responsibility of Subcommittee D19.03 on Sampling Water and
3.1.4 sludge —a water-formed sedimentary deposit.
Water-Formed Deposits, Analysis of Water for Power Generation and Process Use,
3.1.4.1 Thewater-formedsedimentarydepositsmayinclude
On-Line Water Analysis, and Surveillance of Water.
all suspended solids carried by the water and trace elements
Current edition approved May 1, 2008. Published May 2008. Originally
´1
which were in solution in the water. Sludge usually does not
approved in 1946. Last previous edition approved in 2003 as D887 – 82 (2003) .
DOI: 10.1520/D0887-08.
coheresufficientlytoretainitsphysicalshapewhenmechanical
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
means are used to remove it from the surface on which it
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
deposits, but it may be baked in place and be hard and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. adherent.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1942
...
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.
e1
Designation:D 887–82(Reapproved2003) Designation: D 887 – 08
Standard Practices for
1
Sampling Water-Formed Deposits
This standard is issued under the fixed designation D 887; 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
1
superscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval. e NOTE—Warningnoteswereeditoriallymoved
into the standard text in January 2004.
1. Scope
1.1 Thesepracticescoverthesamplingofwater-formeddepositsforchemical,physical,biological,orradiologicalanalysis.The
practices cover both field and laboratory sampling. It also defines the various types of deposits. The following practices are
included:
Sections
Practice A—Sampling Water-Formed Deposits From Tubing 8to10
of Steam Generators and Heat Exchangers
Practice B—Sampling Water-Formed Deposits From Steam 11 to 14
Turbines
1.2 The general procedures of selection and removal of deposits given here can be applied to a variety of surfaces that are
subject to water-formed deposits. However, the investigator must resort to his individual experience and judgment in applying
these procedures to his specific problem.
1.3
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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. See Section 7, 9.8, 9.8.4.6, and 9.14 for specific hazards statements.
2. Referenced Documents
2
2.1 ASTM Standards:
D512Test Methods for Chloride Ion in Water 512 Test Methods for Chloride Ion In Water
D934Practices for Identification of Crystalline Compounds in Water-Formed Deposits by X-Ray Diffraction
D993Test Methods for Sulfate-Reducing Bacteria in Water and Water-Formed Deposits 934 Practices for Identification of
Crystalline Compounds in Water-Formed Deposits By X-Ray Diffraction
D 1129 Terminology Relating to Water
D 1193 Specification for Reagent Water
D 1245 Practice for Examination of Water-Formed Deposits by Chemical Microscopy
D1293Test Methods for pH of Water
3
D1428Test Methods for Sodium and Potassium in Water and Water-Formed Deposits by Flame Photometry 1293 Test
Methods for pH of Water
D 2331 Practices for Preparation and Preliminary Testing of Water-Formed Deposits
D2332Practice for Analysis of Water-Formed Deposits by Wavelength-Dispersive X-Ray Fluorescence
3
D2579Test Methods for Total Organic Carbon in Water 2332 Practice for Analysis of Water-Formed Deposits by
Wavelength-Dispersive X-Ray Fluorescence
D3483Test Methods forAccumulated Deposition in a Steam Generator Tube 3483 Test Methods forAccumulated Deposition
in a Steam Generator Tube
D 4412 Test Methods for Sulfate-Reducing Bacteria in Water and Water-Formed Deposits
1
These practices are under the jurisdiction of ASTM Committee D19 on Water,Water and isare the direct responsibility of Subcommittee D19.03 on Sampling of Water
and Water-Formed Deposits, Analysis of Water for Power Generation and Process Use, On-Line Water Analysis, and Surveillance of Water.
Current edition approved Oct. 29, 1982.May 1, 2008. Published March 1983.May 2008. Originally approved in 1946. Last previous edition approved in 19822003 as
e1
D 887 – 82 (2003) .
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.
1
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D887–08
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 biological deposits—water-formed deposits of organisms or the products of their life processes.
3.1.1.1 The biological deposits may be composed of microscopic organisms, as in slimes, or of macroscopic types such as
barnacles or mussels. Slimes are usually composed of deposits of a gelatinous or filamentous nature.
3.1.2 corrosion products—a result of chemical or electrochemical reaction between a metal and its environment.
3
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