ISO INTERNATIONAL STANDARD 605 Second edition 1991-04-15 Pulses -- Determination of impurities, size, foreign odours, insects, and species and variety -- Test methods Legumineuses -- Determination des impuretes, des dimensions, des odeurs étrangeres, des insectes et des especes et varietés ---Methodes d'examen Reference number ISO 605:1991(E) Not for Resale ISO 605:1991(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 voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote. international Standard Iso 605 was prepared by Technical Committee ISO/TC 34, Agricultural food products. edition cancelsand This second replaces. edition the first (Is0 605:1977), clause 5 and subclause 7.2 of which have been deleted. Annex A of this International Standard is for information only C ISO 1991 or by any means, electronic or mechanical, including photocopying and microfim, without permission in writing from the publisher. International Organization for Standardization Case Postale 56·CH-1211Geneve 20·Switzerland Printed in Switzerland ii Not for Resale d without license from IHS INTERNATIONAL STANDARD ISO 605:1991(E) Pulses --- Determination of impurities, size, foreign odours, insects, and species and variety -- Test methods lunatus L.) and horse beans (Vicia faba L.) for which Scope 1 the test portion shalli be at least 300 g. This International Standard specifies methods not If the content of impurities is very small, it may NOTE 1 given in other International Standards for testing be necessary to increase considerably the mass of the pulses which have not been processed and which test portion. are intended for human consumption or for animal feeding stuffs. 5.2 Separation Normative reference Separate the test portion (5.1) into component groups in order to obtain information relevant to the The following standard contains provisions which, use for which the lot is suitable. through reference in this text, constitute provisions Generally the test portion is separated into five of this International Standard.At the time of publi- cation, the edition indicated was valid. All standards groups, as follows: are subject to revision, and parties to agreements based on this International Standard are encour- a) seeds typical of the species and variety (see aged to investigate the possibility of applying the 5.2.1); most recent edition of the standard indicated below Members of IEC and ISO maintain registers of cur- b) seeds typical of the species but of another var- rently valid International Standards. iety (see 5.2.2); Iso 951:1979, Pulses in bags --- Sampling. c) defective seeds belonging to the same species (see 5.2.3); Sampling d) organic impurities (see 5.2.4): The laboratory sample shall have been taken in ac- e) inorganic impurities (see 5.2.5) cordance with Iso 951. 5.2.1 Seeds typical of the species and variety 4 Preparation of the test sample seeds with a cracked or injured seed coat, seeds Thoroughly mix the laboratory sample (clause 3). slightly damaged by insects and broken typical seeds larger than one-half their original size. 5 Determination of impurities This group may be subdivided if desired. 5.1 Test portion Seeds typical of the species but of another 5.2.2 variety If nece