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  • BS ISO 13909-7:2001

    Current The latest, up-to-date edition.

    Hard coal and coke. Mechanical sampling Methods for determining the precision of sampling, sample preparation and testing

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  30-04-2008

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 General
    5 Formulae 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) - Grubbs' estimators method for
            determining sampling precision
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines method for estimating overall precision and for deriving values for primary increment variance which can be used to modify the sampling scheme to change the precision.

    General Product Information - (Show below) - (Hide below)

    Committee PTI/16
    Development Note Supersedes 98/121230 DC. (02/2002) Together with BS ISO 18283, BS ISO 13909-1, BS ISO 13909-2, BS ISO 13909-3, BS ISO 13909-4, BS ISO 13909-5, BS ISO 13909-6 and BS ISO 13909-8 supersedes BS 1017-1(1989) and BS 1017-2(1994). (04/2008) Supersedes 14/30284108 DC. (07/2016)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    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
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