Standard Practices for Sampling Water-formed Deposits PDF Download
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Author: ASTM International
Publisher:
ISBN:
Category : Corrosion and anti-corrosives
Languages : en
Pages : 8
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Book Description
These practices cover the sampling of water-formed deposits (scale, sludge, corrosion products, or biological deposits) for chemical, physical, biological, or radiological analysis. The practices cover both field and laboratory sampling. It also defines the various types of deposits.
Author: ASTM International
Publisher:
ISBN:
Category : Corrosion and anti-corrosives
Languages : en
Pages : 8
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Book Description
These practices cover the sampling of water-formed deposits (scale, sludge, corrosion products, or biological deposits) for chemical, physical, biological, or radiological analysis. The practices cover both field and laboratory sampling. It also defines the various types of deposits.
Author: American Society for Testing and Materials
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
Author: Committee D-19
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 5
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Book Description
This method covers the selection, removal, storage, and description of any samples of deposit formed on surfaces in contact with water in any of its phases. It also defines the various types of deposits.
Author: American Standards Association
Publisher:
ISBN:
Category : Incrustations
Languages : en
Pages : 5
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author:
Publisher:
ISBN:
Category : Industrial Waste
Languages : en
Pages : 22
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Book Description
Pure water in an uncorrodible vessel would never leave a deposit. Although this ideal case has been very nearly reached in some instances, deposits are still found in most water or steam systems. The examination and analysis of these deposits provides the person responsible for water treatment with information about phenomena in the water system, and will frequently indicate to him the means for correcting the condition that caused the deposit. This chapter covers the nature of water-formed deposits, the sampling of deposits for analysis, and methods for identification of the constituents of a deposit. Quantitative chemical analysis is dealt with in Chapter IX. Some of the instrumental methods discussed in this chapter are not at present widely used in the examination of water-formed deposits, but brief descriptions are included because there are instances where they can be used to advantage. Deposits may be divided into three general classes: inorganic, organic, and biological. Inorganic deposits result from corrosion of containing surfaces; from precipitation by chemical reaction between two or more constituents of the water; or precipitation from physical causes, such as change in solubility with pressure or temperature, by evaporation to dryness, or by relief of supersaturation. Closely akin to these, but still somewhat distinct, is the sedimentation of suspended matter.
Author: Committee D-19
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 4
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Book Description
This method describes the manner in which the results of examination and analysis for inorganic constituents of deposits formed from industrial waters are to be reported. Note 1.--All analyses are to be made in accordance with the methods of test of the American Society for Testing Materials, unless otherwise specified. Note 2.--While various other methods of reporting the analysis of water-formed deposits are in use, this method is intended as a rational and comprehensive practice for general application. For use in specific industries or individual cases, molecular combinations may be useful and desirable.
Author: Committee D-19
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 8
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Book Description
(A) This method describes a procedure for the examination of water-formed deposits by means of chemical microscopy. The procedures of chemical microscopy are applicable to all water-formed deposits. They are much less time consuming than chemical macroanalysis, and, when they can be supplemented by optical data, sufficient information may be obtained to make complete chemical analysis unnecessary. The sample required is small. The method can be applied in cases where there is not sufficient sample available for a macroanalysis. (b) The petrographic procedure which is a part of this method is limited to deposits that are composed of individual particles or crystals having a diameter of at least 10 μ, unless the particles have a characteristic form, cleavage, or highly specific identifying optical properties.
Author: American Society for Testing Materials
Publisher: ASTM International
ISBN:
Category : Science
Languages : en
Pages : 1034
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Book Description
A complete reference of American Society for Testing and Materials standards on environmental sampling, covering standards for sampling soil, water, particulate matter, and vapors in workplaces, wells, laboratories, and natural areas, with guides for safe practices in areas such as construction, chemical testing, groundwater monitoring, and air monitoring at waste management facilities. Annotation copyright by Book News, Inc., Portland, OR
Author: Committee D-19
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 6
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Book Description
(A) These methods are intended for the detection of the presence of sulfate-reducing bacteria when present in deposits or industrial water samples and for estimation of the number of bacteria present. Two methods are given, as follows: (b) The referee method covers the preferred procedure for the detection and estimation of sulfate-reducing bacteria in industrial water samples. The non-referee method covers a procedure of greater simplicity and lesser precision than the referee method.
