BS ISO BRITISH STANDARD 11648-2:2001 Statistical aspectsof sampling from bulk materials - Part 2: Sampling of particulate materials ICS 03.120.30 BSI BS IS0 11648-2:2001 National foreword This British Standard reproduces verbatim IS0 11648-2:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee SS/3, Application of Statistical Methods, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Textual errors The textual error set out below was discovered when adopting the text of the international standard. It has been reported to IsO in a proposal to amend the text oftheinternationalstandard. Clause 5.3.2, page 17, paragraph 2 is not correct. An effect does not have to be statistically significant before it can be accommodated. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ‘International Standards Correspondence Index", or by using the “Find" facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not ofitself confer immunity from legal obligations. Any further errors in this standard should be submitted to the Secretary of the Technical committee SS/3, British Standards House, 389 Chiswick High Road, W4 4AL who will submit them formally to ISO. This British Standard, having beenpreparedunder the direction of the Management Summary of pages Systems Sector Policy and This document comprises a front cover, an inside front cover, ISO title page, StrategyCommittee,was pages ii to v, a blank page, pages 1 to 102, an inside back cover and a back cover. published under the authority of the Standards Policy and The BSI copyright date displayed in this document indicates when the Strategy Committee on 5December2001 documentwaslastissued. Amendments issued since publication Amd. No. Date Comments C BSI 5 December 2001 ISBN 0580 38763 1 ISO INTERNATIONAL STANDARD 11648-2 First edition 2001-10-15 Statistical aspects of sampling from bulk materials - Part 2: Sampling of particulate materials Aspects statistiques de I'echantillonnage des materiaux en vrac- Partie 2: Echantillonnage des materiaux particulaires Reference number ISO 11648-2:2001(E) ISO