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Standard Practices for Sampling Water-Formed Deposits
NORMA vydána dne 1.1.2013
Označení normy: ASTM D887-13
Poznámka: NEPLATNÁ
Datum vydání normy: 1.1.2013
Kód zboží: NS-39617
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
ICS Number Code 13.060.30 (Sewage water)
Significance and Use | ||||||
5.1 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. |
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1. 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:
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. | ||||||
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Standard Practices for Preparation and Preliminary Testing of Water-Formed Deposits |
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Standard Test Methods for pH of Water |
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Standard Practice for Examination of Water-Formed Deposits by Chemical Microscopy |
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Standard Practice for Analysis of Water-Formed Deposits by Wavelength-Dispersive X-Ray Fluorescence |
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Standard Terminology Relating to Water (Includes all amendments and changes 2/14/2024). |
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Standard Practices for Identification of Crystalline Compounds in Water-Formed Deposits By X-Ray Diffraction |
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Standard Test Methods for Chloride Ion In Water |
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Standard Test Methods for Sulfate-Reducing Bacteria in Water and Water-Formed Deposits |
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