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BS ISO 22581:2021

BS ISO 22581:2021

$142.49

Surface chemical analysis. Near real-time information from the X-ray photoelectron spectroscopy survey scan. Rules for identification of, and correction for, surface contamination by carbon-containing compounds

Published By Publication Date Number of Pages
BSI 2021 26
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This document is provided to assist in the surface analysis of thin films on materials which are not thought to contain carbon compounds as intended components but for which a C1s peak is observed in the survey spectrum. The films can be those generated on metals and alloys by aerobic or electrochemical oxidation or be those deposited on inert substrates. The procedure described is not suitable for discontinuous deposits of particles on a substrate. With this exception, a simple procedure is provided for identifying the C1s signal from carbon-containing surface contamination. When the C1s peak is identified as arising from an adventitious over-layer the composition derived from the survey spectrum can be corrected for its influence. Recommended procedures are provided in the form of simple Rules structured in the ‘If – Then’ format with the intention that the information they embody might be utilised by automated procedures in data-systems. The rules provided utilize only information retrieved from the XPS survey scan.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols and abbreviated terms
5 Sample contamination
5.1 General
5.2 Causes of contamination
11 5.3 Recognition of contamination
5.3.1 Construction of rules based on sample description
12 5.3.2 Rules for use of the sample history
5.3.3 Rules for use of peak positions
14 5.3.4 Rule to establish carbon type
15 5.3.5 Rules identifying C1s as arising from absorbed material in the form of a thin film
17 5.3.6 Achievement of the goal
6 Estimation of film thickness and correction for its impact
6.1 Film thickness
18 6.2 Correction of substrate composition
19 Annex A (informative) Flow diagrams for operation of rules
24 Bibliography

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BS ISO 22581:2021
$142.49