《ISO-14717-1999.pdf》由会员分享，可在线阅读，更多相关《ISO-14717-1999.pdf（8页珍藏版）》请在三一文库上搜索。
1、A Reference number ISO 14717:1999(E) INTERNATIONAL STANDARD ISO 14717 First edition 1999-10-01 Oil of origanum, Spanish type Thymbra capitata (L.) Cav. Huile essentielle doriganum, type Espagne Thymbra capitata (L.) Cav. Copyright International Organization for Standardization Provided by IHS under
2、license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 14717:1999(E) ISO ISO 1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
3、or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 CH-1211 Genve 20 Switzerland Internetisoiso.ch Printed in Switzerland ii Foreword
4、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
5、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 with the International Electrotechnical Commission (IEC) on all matters of elect
6、rotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC 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 a
7、pproval by at least 75 % of the member bodies casting a vote. International Standard ISO 14717 was prepared by Technical Committee ISO/TC 54, Essential oils. Annexes A and B of this International Standard are for information only. Copyright International Organization for Standardization Provided by
8、IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISOISO 14717:1999(E) 1 Oil of origanum, Spanish type Thymbra capitata (L.) Cav. 1 Scope This
9、International Standard specifies certain characteristics of the oil of origanum, Spanish type Thymbra capitata (L.) Cav., in order to facilitate assessment of its quality. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute pr
10、ovisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of
11、the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO/TR 210, Essential oils General rules for packaging, conditioning and storage. I
12、SO/TR 211, Essential oils General rules for labelling and marking of containers. ISO 212, Essential oils Sampling. ISO 279, Essential oils Determination of relative density at 20 C (Reference method). ISO 280, Essential oils Determination of refractive index. ISO 592, Essential oils Determination of
13、 optical rotation. ISO 875, Essential oils Evaluation of miscibility in ethanol. ISO 11024-1, Essential oils General guidance on chromatographic profiles Part 1: Preparation of chromatographic profiles for presentation in standards. ISO 11024-2, Essential oils General guidance on chromatographic pro
14、files Part 2: Utilization of chromatographic profiles of samples of essential oils. 3 Term and definition For the purposes of this International Standard, the following term and definition apply. 3.1 oil of origanum, Spanish type essential oil obtained by steam distillation of the flowering tops of
15、Thymbra capitata (L.) Cav., of the Lamiaceae family, growing mainly in Spain 4 Requirements 4.1 Appearance Clear, mobile liquid. 4.2 Colour Yellowish to dark brown, almost black. 4.3 Odour Characteristic, aromatic, phenolic, spicy. 4.4 Relative density at 20 C, d20 20 Minimum:0,930 Maximum:0,955 4.5
16、 Refractive index at 20 C Minimum:1,500 0 Maximum:1,513 0 4.6 Optical rotation at 20 C Between 5 and +2. NOTE This value is difficult to measure when the oil is particularly dark. 4.7 Miscibility in ethanol, 70 % volume fraction, at 20 C It shall not be necessary to use more than 4 volumes of 70 % e
17、thanol to obtain a clear solution with 1 volume of essential oil. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without lice
18、nse from IHS -,-,- ISO 14717:1999(E) ISO 2 NOTE Sometimes opalescence is observed on dilution. 4.8 Chromatographic profile Analysis of the essential oil shall be carried out by gas chromatography. In the chromatogram obtained, the representative and characteristic components shown in Table 1 shall b
19、e identified. The proportions of these components, indicated by the integrator, shall be as shown in Table 1. This constitutes the chromatographic profile of the essential oil. Table 1 Chromatographic profile ComponentMinimum % Maximum % -Thujene0,52 -Pinene0,51,5 Myrcene13 -Terpinene0,52,5 -Terpine
20、ne3,58,5 p-Cymene5,59 Linalool0,53 Terpinen-4-ol0,52 Thymol05 Carvacrol6075 -Caryophyllene25 NOTE The chromatographic profile is normative, contrary to typical chromatograms given for information in annex A. 4.9 Flashpoint Information on the flashpoint is given in annex B. 5 Sampling See ISO 212. Mi
21、nimum volume of test sample: 25 ml. NOTE This volume allows each of the tests specified in this International Standard to be carried out at least once. 6 Test methods 6.1 Relative density at 20 C, d20 20 See ISO 279. 6.2 Refractive index at 20 C See ISO 280. 6.3 Optical rotation at 20 C See ISO 592.
22、 6.4 Miscibility in ethanol, 70 % volume fraction, at 20 C See ISO 875. 6.5 Chromatographic profile See ISO 11024-1 and ISO 11024-2. 7 Packaging, labelling, marking and storage See ISO/TR 210 and ISO/TR 211. Copyright International Organization for Standardization Provided by IHS under license with
23、ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 14717:1999(E) 3 Annex A (informative) Typical chromatograms of the analysis by gas chromatography of the oil of origanum, Spanish ty
24、pe Thymbra capitata (L.) Cav. Peak identification 1-Thujene 2-Pinene 3Myrcene 4-Terpinene 5p-Cymene 6-Terpinene 7Linalool 8Terpinen-4-ol 9Thymol 10Carvacrol 11-Caryophyllene Operating conditions Column: fused silica capillary; length 30 m; internal diameter 0,25 mm Stationary phase: polydimethylsilo
25、xane Film thickness: 0,25 m Oven temperature: temperature programming from 70 C to 220 C at 3 C/min Injector temperature: 250 C Detector temperature: 250 C Detector: flame ionization type Carrier gas: helium Volume injected: 0,2 l Linear velocity of carrier gas: 0,20 m/s approx. Figure A.1 Typical c
26、hromatogram taken on an apolar column Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 14717
27、:1999(E) ISO 4 Peak identification 1-Thujene 2-Pinene 3Myrcene 4-Terpinene 5-Terpinene 6p-Cymene 7Linalool 8Terpinen-4-ol 9Thymol 10Carvacrol 11-Caryophyllene Operating conditions Column: fused silica capillary; length 30 m; internal diameter 0,25 mm Stationary phase: polyethyleneglycol 20 000 Film
28、thickness: 0,25 m Oven temperature: temperature programming from 70 C to 220 C at 3 C/min Injector temperature: 250 C Detector temperature: 250 C Detector: flame ionization type Carrier gas: helium Volume injected: 0,2 l Linear velocity of carrier gas: 0,20 m/s approx. Split ratio: 1/100 Figure A.2
29、Typical chromatogram taken on a polar column Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without license from IHS -,-,- IS
30、OISO 14717:1999(E) 5 Annex B (informative) Flashpoint B.1 General information For reasons of safety, transport companies, insurance companies, people in charge of safety services, etc., require information on the flashpoint of essential oils, which in most cases are flammable products. A comparative
31、 study on the relevant methods of analysis (see ISO/TR 110181) concluded that it was hard to find a single method for standardization purposes, given that: essential oils are varied and their chemical compositions differ to a large extent; the volume of the sample needed for certain test equipment i
32、s incompatible with the high price of essential oils; there are different types of equipment that satisfy the desired objective, but users cannot be obliged to use one type of equipment rather than another. Consequently, it was decided to give a mean value for the flashpoint in an informative annex
33、in each International Standard, for information purposes, in order to meet the requirements of the interested parties. If possible, the method by which this value was obtained should be specified. For further information see ISO/TR 110181). B.2 Flashpoint of the essential oil of origanum, Spanish ty
34、pe Thymbra capitata (L.) Cav. The mean value is +65 C NOTE Obtained with “Setaflash“ equipment. _ 1) ISO/TR 11018, Essential oils General guidance on the determination of flashpoint. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technic
35、al Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 14717:1999(E) ISO ICS 71.100.60 Price based on 5 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 06:49:16 MDTNo reproduction or networking permitted without license from IHS -,-,-