ASTM-E2729 Standard Practice for Rectification of Spectrophotometric Bandpass Differences

ASTM-E2729 - 2016 EDITION - CURRENT
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Standard Practice for Rectification of Spectrophotometric Bandpass Differences
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Scope

1.1 This standard outlines the methods that can be used to deconvolve, at least partially, the spectral bandpass differences of raw spectral data acquired by abridged spectrophotometry. Such differences are introduced because the spectral passband must be of significant bandwidth to allow sufficient energy to reach the detector. On the other hand, the spectral data that should be reported is that of a virtual 1-nm bandwidth spectrum in order to be useful in the CIE method of tristimulus integration which involves 1-nm summation.

1.2 The standard establishes practices for whether, when, and how a bandpass rectification should be made to any reflectance or transmittance spectrum acquired by abridged spectrophotometry.

1.3 It is applicable where the shape of the passband is triangular and the bandwidth is equal to the measurement interval between passbands. Information is provided in Section 7 for users when that condition is not satisfactorily met.

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.

Keywords

bandpass rectification; spectral deconvolution;; ICS Number Code 71.040.50 (Physicochemical methods of analysis)

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06.01 (Paint -- Tests for Chemical, Physical, and Optical Properties; Appearance)

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71.040.50 (Physicochemical methods of analysis Including spectrophotometric and chromatographic analysis)

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Document Number

ASTM-E2729-16

Revision Level

2016 EDITION

Status

Current

Modification Type

Revision

Publication Date

Aug. 15, 2016

Document Type

Practice

Page Count

3 pages

Committee Number

E12.04