BS ISO BRITISH STANDARD 17126:2005 Soil quality Determination of the effects of pollutants on soil flora Screening test for emergence of lettuce seedlings (Lactuca sativa L.) ICS 13.080.30 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO17126:2005 National foreword This British Standard reproduces verbatim IS0 17126:2005 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee EH/4, Soil quality, 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. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled "International Standards Correspondence Index", or by using the“Search" facility of the BsI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not ofitself confer immunity fromlegal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued sincepublication This British Standard was published under the authority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 4 March 2005 BSI 4 March 2005 ISBN 0 580 45559 9 BS IS0 17126:2005 ISO INTERNATIONAL STANDARD 17126 First edition 2005-02-01 Soil quality Determination of the effects of pollutants on soil flora Screening test for emergence of lettuce seedlings (Lactuca sativa L.) Qualitedusol-Determinationdes effetsdespolluants surlafloredu sol-Essaide detection de I'emergence desplantules de laitue (Lactuca sativa L.) Reference number ISO 17126:2005(E) ISO BS IS0 17126:2005 = BS ISO 17126:2005 Contents Page Foreword IV Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Materials 6 Apparatus 7 Procedure ... 7.1 Testing of samples of soil and other test materials 7.2 Testing of chemicals.. 7.3 Temperatureandlightregime 7.4 Water content... 7.5 Referencesubstance, 7.6 Preparationandstartoftestdishes 7.7 Test duration 7.8 Measurements 7.9 Recordings.. 8 Expressionof results. 6 Validity of the test .. 10 Test report Bibliography ii BS IS0 17126:2005 Foreword ISO (the International Organization for Standardization) is a worldwidefederation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with isO, also take part in the work. Iso collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 17126 was prepared by Technical Committee ISO/TC 190, Soil quality, Subcommittee SC 4, Biological