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1997 Edition, April 10, 1997

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Standard Practice for Photographic Photometry in Spectrochemical Analysis

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Product Details:

  • Revision: 1997 Edition, April 10, 1997
  • Published Date: April 10, 1997
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 15
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

1. Scope

1.1 This practice covers the calibration of photographic emulsions and their use in measuring spectral line intensity ratios. Several methods of external illumination are outlined. Instructions are given for using regression in a computer program for defining the emulsion calibration from preliminary curves prepared by using the two-step and two-line methods and the line-group procedure. Correction for spectral back-ground is discussed in some detail, and instructions are given for preparing analytical curves.

1.2 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.