BS ISO BRITISH STANDARD 15672:2000 Rubber and rubber additives D Determination of total nitrogen content using an automatic analyser Confirmed September2010 ICS 83.040.20; 83.060 ES NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAW BS ISO 15672:2000 National foreword This British Standard reproduces verbatim IS0 15672:2000 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/23, Chemical testingofrubber, 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 oforganizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards whichimplementinternationalpublicationsreferredto in this document may be found in the BSI Standards Catalogue under the section entitled aInternational Standards Correspondence Index, or by using the aFind facility of theBSIStandardsElectronicCatalogue. A British Standard does not purport to include all the necessary provisions ofa contract. Users ofBritish Standards areresponsiblefor their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and ii, a blank page, pages 1 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This British Standard, having Amendmentsissuedsincepublication beenprepared underthe direction of the Sector Amd. No. Date Comments CommitteeforMaterialsand Chemicals,was published under theauthorityofthe Standards Committeeandcomesintoeffect on 15 October 2000 @ BSI 10-2000 ISBN0580365166 ISO INTERNATIONAL STANDARD 15672 First edition 2000-07-15 Rubber and rubber additives - Determination of total nitrogen content usinganautomaticanalyser Caoutchouc et additifs pour caoutchoucDosage de I'azote total a I'aide d'unanalyseurautomatique Reference number ISO 15672:2000(E) ISO ISO 15672:2000(E) ii ISO 15672:2000(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical com- mittees. Each member body interested in a subject for which a technical committee has been established has the son with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3. Draft International Standards 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 International Standard may be the subject of patent rights. isO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 15672 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products. Subcommittee SC 2,Testingandanalyses. i ISO 15672:2000(E) INTERNATIONALSTANDARD RubberandrubberadditivesDeterminationoftotalnitrogen WARNING Persons using this International Standard should be familiar with normal laboratory practice. any national regulatory conditions. 1 Scope This International Standard specifies an instrumental (automatic analyser) method for the determination of total nitrogeninrubberandrubberadditives 2 Termsanddefinitions For the purposes of this Internation