ASTM-D934 2003

$40.63

D934-80(2003) Standard Practices for Identification of Crystalline Compounds in Water-Formed Deposits By X-Ray Diffraction

Published By	Publication Date	Number of Pages
ASTM	2003	9

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Categories: 13.060.30 - Sewage water, ASTM

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Description

1.1 These practices provide for X-ray diffraction analysis of powdered crystalline compounds in water-formed deposits. Two are given as follows:

1.2 Both practices yield qualitative identification of crystalline components of water-formed deposits for which X-ray diffraction data are available or can be obtained. Greater difficulty is encountered in identification when the number of crystalline components increases.

1.3 Amorphous phases cannot be identified without special treatment. Oils, greases, and most organic decomposition products are not identifiable.

1.4 The sensitivity for a given component varies with a combination of such factors as density, degree of crystallization, particle size, coincidence of strong lines of components and the kind and arrangement of the atoms of the components. Minimum percentages for identification may therefore range from 1 to 40 %.

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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8 and Note 20.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Practices Significance and Use Purity of Reagents
2	Sampling Safety Precautions Preliminary Testing of Analytical Sample Preparation of Sample Selective Segregation of Analytical Sample
3	Scope Summary of Practice A Interferences
4	Apparatus Reagents and Material Preparation of Test Specimen Calibration and Standardization
5	TABLE 1
6	Procedure for Taking Patterns Identification of Patterns
7	Report Scope Summary of Practice Interferences Apparatus X-Ray Equipment Preparation Calibration and Standardization
8	Procedure Identification of Patterns Report Keywords
9	REFERENCES FIG. 1