BS-ISO-18054-2004.pdf
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1、BRITISH STANDARD BS ISO 18054:2004 Oils of orris rhizome (Iris pallida Lam. or Iris germanica L.) Determination of irone content Method using gas chromatography on a capillary column ICS 71.100.60 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 04:12:38 GMT+00:00 2006, Uncontrolled Copy, (c
2、) BSI BS ISO 18054:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 1 June 2004 BSI 1 June 2004 ISBN 0 580 43837 6 National foreword This British Standard reproduces verbatim ISO 18054:2004 and implements it as the UK national standard. T
3、he UK participation in its preparation was entrusted to Technical Committee AW/54, Essential oils, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international
4、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 th
5、e necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on th
6、e interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 8, an in
7、side back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 04:12:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Refe
8、rence number ISO 18054:2004(E) INTERNATIONAL STANDARD ISO 18054 First edition 2004-05-15 Oils of orris rhizome (Iris pallida Lam. or Iris germanica L.) Determination of irone content Method using gas chromatography on a capillary column Huile essentielle de rhizomes diris (Iris pallida Lam. ou Iris
9、germanica L.) Dtermination de la teneur en irones Mthode par chromatographie en phase gazeuse sur colonne capillaire BS ISO 18054:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 04:12:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DPlcsid Fremia ihTs PDF file mya ctnoian emdebt dedyfepcae
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13、 Mon Nov 27 04:12:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii 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 technica
14、l 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, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely wit
15、h the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft Inter
16、national 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 document may
17、 be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 18054 was prepared by Technical Committee ISO/TC 54, Essential oils. BS ISO 18054:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 04:12:38 GMT+00:00 2006, Uncontrolled C
18、opy, (c) BSI iv Introduction Since the description of methods of analysis by gas chromatography is very long, it is considered useful to establish general methods giving detailed information on all the recurrent parameters, apparatus, products, methods, formulae, etc. and then standards with short d
19、etails on the determination of specific constituents in essential oils, giving only those operating conditions specific to the pertinent determination. This is the case with the present International Standard, which refers to the general standard ISO 7609 for the general paragraphs. BS ISO 18054:200
20、4 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 04:12:38 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Oils of orris rhizome (Iris pallida Lam. or Iris germanica L.) Determination of irone content Method using gas chromatography on a capillary column 1 Scope This International Standard speci
21、fies a method for the determination of irone content in oils of orris1) rhizome (Iris pallida Lam. or Iris germanica L.) using gas chromatography on a capillary column. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated referen
22、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 356, Essential oils Preparation of test samples ISO 7609, Essential oils Analysis by gas chromatography on capillary columns General method 3 Principle G
23、as phase chromatography on small quantities of orris essential oils is carried out on a capillary column, under the specified analytical conditions. The irone content is determined by the internal standard method. 4 Reagents and products 4.1 Reference substance: synthetic irones of which the sum of
24、the isomers is greater than 90 %, determined by chromatography under the test conditions. 4.2 Internal standard Select either one of the following recently distilled substances, depending on whether a polar or apolar column is being used. The internal standard selected shall elute as near as possibl
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