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ASTM D2331-08

Current Revision

Standard Practices for Preparation and Preliminary Testing of Water-Formed Deposits

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1.1 These practices provide directions for the preparation of the sample for analysis, the preliminary examination of the sample, and methods for dissolving the analytical sample or selectively separating constituents of concern.

1.2 The general practices given here can be applied to analysis of samples from a variety of surfaces that are subject to water-formed deposits. However, the investigator must resort to individual experience and judgement in applying these procedures to specific problems.

1.3 The practices include the following:

Sections
Preparation of the Analytical Sample 8
Preliminary Testing of the Analytical Sample 9
Dissolving the Analytical Sample10

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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. For a specific warning statement, see Note 2.

Deposits in piping from aqueous process streams serve as an indicator of fouling, corrosion or scaling. Rapid techniques of analysis are useful in identifying the nature of the deposit so that the reason for deposition can be ascertained.

Possible treatment schemes can be devised to prevent deposition from reoccurring.

Deposits formed from or by water in all its phases may be further classified as scale, sludge, corrosion products or biological deposits. The overall composition of a deposit or some part of a deposit may be determined by chemical or spectrographic analysis; the constituents actually present as chemical substances may be identified by microscope or X-ray.

SDO ASTM: ASTM International
Document Number D2331
Publication Date Oct. 1, 2008
Language en - English
Page Count 5
Revision Level 08
Supercedes
Committee D19.03
Publish Date Document Id Type View
Oct. 1, 2008 D2331-08 Revision
July 1, 2022 D2331-08R22 Reaffirmation
Jan. 1, 2013 D2331-08R13 Reaffirmation
June 10, 1999 D2331-80R99 Reaffirmation
July 3, 1980 D2331-80R03 Reaffirmation