ISO INTERNATIONAL STANDARD 1811-1 First edition 1988-10-01 INTERNATIONALORGANIZATIONFORSTANDARDIZATION so ORGANISATION INTERNATIONALE DE NORMALISATION MEXKAYHAPOAHAA OPTAHW3ALMR NO CTAHAAPTW3ALMM Copper and copper alloys - Selection and preparation of samplesfor chemicalanalysis Part 1 : Samplingof cast unwroughtproducts Cuivre et alliages de cuivre -Selection et preparation des échantllons pour I'analyse chimique Partie 1: Echantillonnage des formes brutes de coulee Referencenumber ISO 1811-1 : 1988 (E) ISO 1811-1 : 1988 (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 committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with ISo, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. They are approved in accordance with ISo procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 1811-1 was prepared by Technical Committee ISO/TC 26, Copperand copperalloys. Together with ISo 1811-2 and 1811-3, it cancels and replaces ISO Recommendation R 1811 : 1971, of which it constitutes a technical revision. Iso 1811 consists of the following parts, under the general title Copper and copper alloys--Selection andpreparationof samples for chemical analysis: Part1:Samplingof castunwroughtproducts Part2: Sampling of wrought products and castings Part3:Samplingofcathodes Annex A forms an integral part of this part of ISo 1811. International Organization for Standardization,1988 Printed in Switzerland ISO1811-1:1988 (E) INTERNATIONALSTANDARD Copper and copper alloys - Selection and preparation of samples for chemical analysis Part 1 : Sampling of cast unwrought products Scope In addition, the following definitions apply. This part of ISo 1811 specifies methods for the selection and 3.1lotofcastunwroughtproducts (exceptcathodes)2) preparation of samples for chemical analysis of copper and Unless otherwise agreedbetweenproducerandpurchaser,for copper alloys in the form of cast unwrought products, except the purpose of sampling,a lot of cast unwrought products shall cathodes.1) 2) be defined as material of a particular form, such as cakes, The methods specified in this part of ISo 1811 apply to copper billets,wire bars or ingots,that isproduced from asingle melting furnace charge or from a 24 h cycle of a continuous and copper alloys in the form of cast unwrought products melting furnace. (refinery shapes), such as cakes, billets, wire bars and ingots, and are intended to determine compliance with the re- Materials of different forms, or of different sizes, and/or cast quirements for chemical composition. from different furnaces, shall be considered as separate lots. Normativereferences 3.2 sampling unit : An individual cast unwrought product 2 selected from a lot. The following standards contain provisions which, through reference inthistext,constituteprovisions of thispartof 3.3 gross sample : The total amount of all sampling units ISo 1811. At the time of publication, the editions indicated selected from a lot. were valid. All standards are subject to revision, and parties to agreements based on this part of iso 1811 are encouraged to investigate the possibility of applying the most recent editions 3.4 test sample : A sample prepared from the gross sample of the standards listed below. Members of IEC and ISO main- and from which the test portions will b