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Standard Practices for Preparation and Preliminary Testing of Water-Formed Deposits
Automaticky přeložený název:
Standardní postupy pro přípravu a předběžného testování Water-tvořil Vklady
NORMA vydána dne 1.1.2013
Označení normy: ASTM D2331-08(2013)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.1.2013
Kód zboží: NS-20049
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
atomic absorption, crystallographic examination, deposits, microscopy, sample preparation, scale, spectrographic analysis , x-ray diffraction, x-ray fluorescence, ICS Number Code 13.060.60 (Examination of water for physical properties)
Significance and Use | ||||||||||||||||||||||||||
4.1 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. 4.2 Possible treatment schemes can be devised to prevent deposition from reoccurring. 4.3 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. |
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1. Scope | ||||||||||||||||||||||||||
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:
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.
Standard Practice for Examination of
Water-Formed Deposits by Chemical Microscopy Standard Specification for Reagent
Water Standard Terminology Relating to Water
(Includes all amendments and changes 2/14/2024). Standard Specification for Woven Wire
Test Sieve Cloth and Test Sieves Standard Practices for Identification of
Crystalline Compounds in Water-Formed Deposits By X-Ray
Diffraction Standard Practices for Sampling
Water-Formed Deposits Standard Practice for Filamentous Iron
Bacteria in Water and Water-Formed Deposits Standard Practice for Reporting Results
of Examination and Analysis of Water-Formed Deposits Standard Practice for Analysis of
Water-Formed Deposits by Wavelength-Dispersive X-Ray
Fluorescence |
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