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BS EN ISO 6540:2021

BS EN ISO 6540:2021

$167.15

Maize. Determination of moisture content (on milled grains and on whole grains)

Published By Publication Date Number of Pages
BSI 2021 34
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This document specifies two methods:

  • a reference method for the determination of the moisture content of maize grains and ground whole maize, groats, grits and maize flour, see Clause 4;

  • a routine method for the evaluation of the moisture content of maize in whole grains, see Clause 5.

The latter is not suitable for use for experts’ reports, or for calibration or checking of humidity meters, because of its significant bias to the reference method (see Table B.3).

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Reference method
4.1 Principle
4.2 Apparatus
10 4.3 Sampling
4.4 Preparation of the test sample
4.4.1 Products not requiring to be ground
11 4.4.2 Products requiring to be ground
4.5 Procedure
4.5.1 Number of determinations
4.5.2 Test portion
12 4.5.3 Drying
4.5.4 Weighing
4.6 Expression of results
13 4.7 Precision
4.7.1 Interlaboratory test
4.7.2 Repeatability
4.7.3 Reproducibility
4.7.4 Comparison of two groups of measurements in a laboratory
4.7.5 Comparison of two groups of measurements in two laboratories
14 4.7.6 Uncertainty
4.7.7 Comparison with the absolute method
4.8 Notes on procedure
4.9 Test report
15 5 Routine method on whole grains
5.1 Principle
16 5.2 Apparatus
5.3 Sampling
5.4 Procedure
5.4.1 Test portion
5.4.2 Drying
5.4.3 Number of determinations
17 5.5 Expression of results
5.5.1 Method of calculation and formulae
5.5.2 Repeatability
5.5.3 Reproducibility
5.5.4 Comparison of two groups of measurements in a laboratory
18 5.5.5 Comparison of two groups of measurements in two laboratories
5.5.6 Application of fidelity limits
5.6 Remark
5.7 Test report
19 Annex A (informative) Absolute method
26 Annex B (informative) Interlaboratory test results
32 Annex C (informative) Application of fidelity data for the whole grains method
33 Bibliography

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BS EN ISO 6540:2021
$167.15