14/30284108 DC : 0

Superseded

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BS ISO 13909-7 - HARD COAL AND COKE - MECHANICAL SAMPLING - PART 7: METHODS FOR DETERMINING THE PRECISION OF SAMPLING, SAMPLE PREPARATION AND TESTING

Available format(s)

Hardcopy , PDF

Superseded date

30-06-2016

Language(s)

English

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Equations relating to factors affecting precision
6 Estimation of primary increment variance
7 Methods for estimating precision
8 Calculation of precision
9 Methods of checking sample preparation and testing errors
Annex A (informative) - Variogram method for determining
variance
Annex B (informative) - Gubbs' estimators method for
determining sampling precision
Bibliography

BS ISO 13909-7.

Committee	PTI/16
DocumentType	Draft
Pages	51
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS ISO 13909-7:2001

ISO 13909-4:2016	Hard coal and coke — Mechanical sampling — Part 4: Coal — Preparation of test samples
ISO 13909-1:2016	Hard coal and coke — Mechanical sampling — Part 1: General introduction
ISO 13909-6:2016	Hard coal and coke — Mechanical sampling — Part 6: Coke — Preparation of test samples
ISO 13909-8:2016	Hard coal and coke — Mechanical sampling — Part 8: Methods of testing for bias
ISO 13909-2:2016	Hard coal and coke — Mechanical sampling — Part 2: Coal — Sampling from moving streams
ISO 13909-5:2016	Hard coal and coke — Mechanical sampling — Part 5: Coke — Sampling from moving streams
ISO 13909-3:2016	Hard coal and coke — Mechanical sampling — Part 3: Coal — Sampling from stationary lots