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ASTM D5357

2003 Edition, March 10, 2003

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Standard Test Method for Determination of Relative Crystallinity of Zeolite Sodium A by X-ray Diffraction

Includes all amendments and changes through Reapproval Notice , 2013

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Product Details:

  • Revision: 2003 Edition, March 10, 2003
  • Published Date: January 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 3
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This test method covers a procedure for determining the relative crystallinity of zeolite sodium A (zeolite NaA) using selected peaks from the X-ray diffraction pattern of the zeolite.

The term "intensity of an X-ray powder diffraction (XRD) peak" refers to the "integral intensity," either the area or counts under the peak or the product of the peak height and the peak width at half height.

This test method provides a number that is the ratio of intensity of portions of the XRD pattern of the sample to intensity of the corresponding portion of the pattern of a reference zeolite NaA. The intensity ratio, expressed as a percentage, is then labeled relative crystallinity of NaA.

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

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.