《ISO-542-1990.pdf》由会员分享，可在线阅读，更多相关《ISO-542-1990.pdf（12页珍藏版）》请在三一文库上搜索。
1、INTERNATIONAL TANDARD ISO 542 Second edi tion 1990-10-01 - Oilseeds - Sampling Graines ol6agineuses - Echantillonnage Reference number ISO 542: 199O(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not f
2、or Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 542:199O(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bodies). The work of preparing International S
3、tandards is normally carried out through ISO technical committees. Esch 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, a
4、lso 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 Interna
5、- tional Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 542 was prepared by Technical Committee ISO/TC 34, Agricultural food products. This second edition cancels and replaces the first edition (ISO 542:1980), of which it constitutes a tec
6、hnical revision. Annex A of this International Standard is for information only. 0 ISO 1990 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronie or mechanical, including photocopying and microfilm, without Permission in writing from t
7、he publisher. International Organization for Standardization Case Postale 56 l CH-121 1 Geneve 20 * Switzerland Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/
8、23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 542:1990(E) Introduction Most oilseeds are marketed on the basis of the result of analysis of the samples, and disputes are invariably settled by reference to the sam- ples, so that careless or inaccurate
9、sampling could lead to misunder- standing, delay and unwarranted financial adjustments. Correct sampling is a difficult process and one that requires the most careful attention. Emphasis cannot therefore be too strongly laid on the necessity of obtaining a representative Sample of oilseeds for analy
10、sis. The procedures given in this International Standard are recognized as good practice and it is strongly recommended that they be followed whenever practicabie. . . . Ill Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standa
11、rds 1/9972545001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- This page intentionally left blank Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/997254
12、5001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 542:1990(E) Oilseeds - Sampling 1 Scope This International Standard specifies metiiods of sampling oilseeds. 2 Normative reference The following Standard cont
13、ains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the edition indicated was valid. All Standards are subject to revision, and Parties to agreements based on this International Standard are encour- aged to invest
14、igate the possibility of applying the most recent edition of the Standard indicated below. Members of IEC and ISO maintain registers of cur- rently valid International Standards. ISO 664:1990, Oilseeds - Reduction of laboratory Sample to test Sample. 3 Definitions For the purposes of this Internatio
15、nal Standard, the following definitions apply. 3.1 consignment: The quantity of oilseeds dis- patched or received at one time and covered by a particular contra b) from; c) to; d) date arrived; e) quantity; f) buIk/bags; Copyright International Organization for Standardization Provided by IHS under
16、license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 542:1990(E) h) identification mark or lot number; i) number and date of bill of lading or contract; date of sampling; k) p
17、lace and Point of sampling; m) name contra of organization responsible for terms of ct. sampled by; The information recorded on the label shall be per- manent. 92.3 Labels for samples of damaged material shall also indicate the nature of the darnage and the pro- Portion or tonnage so affected. IO Di
18、spatch sf samples Laboratory samples shall be dispatched as soon as possible, and only in exceptional circumstances more than 48 h after sampling has been completed, non-business days excluded. 11 Sampling report The sampling report shall make reference to this International Standard and shall indic
19、ate, in addition to the information necessary for the identification of the Sample, the condition of the oilseeds sampled, including signs of insect, mite or rodent infestation visible either in the Silo or warehouse or during the operations carried out in the ship or other carrier. NOTE 2 Such infe
20、station is not always readily apparent in the Sample, except on close inspection or sieving. The report shall also refer to any modifications to the technique described in this International Stan- dard, and all the circumstances that may have in- fluenced sampling. Copyright International Organizati
21、on for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 542:1990(E) Annex A (informative) Examples of apparatus for sampling and divi
22、sion Dimensions in tnillimetres Depth of groove : 10 Dimensions in millimetres Figure A.1 - Sampling spear (open trier) Figure A.2 - Hand-Scoop Dimensions in millimetres CY Depth of groove : 16 Figure A.3 - Divided sampling spear (open trier) Dimensions in millimetres Figure A.4 - Cylindrical sampie
23、r (divided bulk probe 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 542:1990(E) Dimensi
24、ons in millimetres _- - -_- - Lcl 4 - Figure A.5 - Running iron (sack-type trier) Dimensions in millimetres Figure A.6 - Falling stream Sampler (Pelican type) Dimensions in millimetres Figure A.7 - Quartering iran 6 Copyright International Organization for Standardization Provided by IHS under licen
25、se with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 542:199O(E) Ir Spates which open into outer funn Dutts which met- funnel Receptacle Figure A.8 - Canical divider ucts connected
26、 Figure A.9 - Multiple-slot divider with sorting System - 7 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license fr
27、om IHS -,-,- ISO 542:1990(E) UDC 665.3:620.11 Descriptors: agricultural products, oilseeds, sampiing, sampling equipment. Price based on 7 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/23/2007 22:03:21 MDTNo reproduction or networking permitted without license from IHS -,-,-