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1、 Reference number ISO 3757:2002(E) ISO 2002 INTERNATIONAL STANDARD ISO 3757 Second edition 2002-11-01 Oil of patchouli Pogostemon cablin (Blanco) Benth. Huile essentielle de patchouli Pogostemon cablin (Blanco) Benth. Copyright International Organization for Standardization Provided by IHS under lic
2、ense with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3757:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed
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5、itable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by a
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7、 copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2002 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without
8、license from IHS -,-,- ISO 3757:2002(E) ISO 2002 All rights reserved 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 tec
9、hnical 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 closel
10、y with 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 3. The main task of technical committees is to prepare International Standards. Draft
11、International 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 Interna
12、tional Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3757 was prepared by Technical Committee ISO/TC 54, Essential oils. This second edition cancels and replaces the first edition (ISO 3757:1978), which has been tec
13、hnically revised. Annexes A and B of this International Standard are for information only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted with
14、out license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 3757:2002(
15、E) ISO 2002 All rights reserved 1 Oil of patchouli Pogostemon cablin (Blanco) Benth. 1 Scope This International Standard specifies certain characteristics of the oil of patchouli Pogostemon cablin (Blanco) Benth., in order to facilitate assessment of its quality. 2 Normative references The following
16、 normative documents contain provisions which, through reference in this text, constitute provisions 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 Sta
17、ndard are encouraged to investigate the possibility of applying the most recent editions of 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 St
18、andards. ISO/TR 210, Essential oils General rules for packaging, conditioning and storage ISO/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, Esse
19、ntial oils Determination of refractive index ISO 592, Essential oils Determination of optical rotation ISO 709, Essential oils Determination of ester value ISO 875, Essential oils Evaluation of miscibility in ethanol ISO 1242, Essential oils Determination of acid value ISO 11024-1, Essential oils Ge
20、neral guidance on chromatographic profiles Part 1: Preparation of chromatographic profiles for presentation in standards ISO 11024-2, Essential oils General guidance on chromatographic profiles Part 2: Utilization of chromatographic profiles of samples of essential oils 3 Term and definition For the
21、 purposes of this International Standard, the following term and definition applies. 3.1 oil of patchouli essential oil obtained by steam entrainment of the dried leaves of Pogostemon cablin (Blanco) Benth., of the Lamiaceae family NOTE For information on the CAS number, see ISO/TR 21092. 4 Requirem
22、ents 4.1 Appearance Liquid of variable viscosity. 4.2 Colour Yellow to reddish brown. 4.3 Odour Leafy, humic, clinging. 4.4 Relative density at 20 C, 20 20 d Minimum: 0,952 Maximum: 0,975 4.5 Refractive index at 20 C Minimum: 1,505 0 Maximum: 1,515 0 Copyright International Organization for Standard
23、ization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3757:2002(E) 2 ISO 2002 All rights reserved 4.6 Optical rotation at 20 C Between 60 and 40. 4.7 Miscibility i
24、n ethanol, 90 % (volume fraction), at 20 C It shall not be necessary to use more than 10 volumes of ethanol, 90 % (volume fraction), to obtain a clear solution with 1 volume of essential oil. 4.8 Acid value Maximum: 4 4.9 Ester value Maximum: 10 4.10 Chromatographic profile Analysis of the essential
25、 oil shall be carried out by gas chromatography. In the chromatogram obtained, the representative and characteristic components shown in Table 1 shall be identified. The proportions of these components, indicated by the integrator, shall be as shown in Table 1. This constitutes the chromatographic p
26、rofile of the essential oil. Table 1 Chromatographic profile Component Minimum % Maximum % -Patchoulene 1,8 3,5 Copaene traces 1 -Guaiene 11 16 -Caryophyllene 2 5 Bulnesene 13 21 nor-Patchoulenol 0,35 1 Patchoulol 27 35 Pogostol 1 2,5 NOTE 1 It could be possible to find up to 0,2 % of -gurjunene in
27、the essential oils distilled on non-industrial scale production. NOTE 2 The chromatographic profile is normative, contrary to typical chromatograms given for information in annex A. 4.11 Flashpoint Information on the flashpoint is given in annex B. 5 Sampling See ISO 212. Minimum volume of test samp
28、le: 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, 20 20 d See ISO 279. 6.2 Refractive index at 20 C See ISO 280. 6.3 Optical rotation at 20 C See ISO 592. 6.4 Miscibility in etha
29、nol, 90 % (volume fraction), at 20 C See ISO 875. 6.5 Acid value See ISO 1242. 6.6 Ester value See ISO 709. 6.7 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
30、 Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3757:2002(E) ISO 2002 All rights reserved 3 Annex A (informative) Typical chromatograms of the analysis by gas chrom
31、atography of the essential oil of patchouli Pogostemon cablin (Blanco) Benth. Peak identification 1 Copaene 2 -Patchoulene 3 Cycloseychellene 4 -Caryophyllene 5 Seychellene + others 6 -Guaiene 7+8 -Patchoulene + others 9 Bulnesene 10 nor-Patchoulenol 11+12 Patchoulol + pogostol a -Gurjunene position
32、, if present Operating conditions Column: silica capillary; length 30 m; internal diameter 0,25 mm Stationary phase: polydimethylsiloxane (SE 30) Film thickness: 0,25 m Oven temperature: temperature programming from 70 C to 250 C at a rate of 2 C/min Injector temperature: 250 C Detector temperature:
33、 250 C Detector: flame ionization type Carrier gas: nitrogen Volume injected: 0,3 l Carrier gas flow rate: 1 ml/min Split ratio: 1/100 Figure A.1 Typical chromatogram taken on an apolar column Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Ar
34、amco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3757:2002(E) 4 ISO 2002 All rights reserved Peak identification 1 -Patchoulene 2 Copaene 3+4 -Guaiene + -caryophyllene 5+6+7 -Patchoulene + seychellene + others 8 Buln
35、esene 9 nor-Patchoulenol 10 Patchoulol 11 Pogostol a -Gurjunene position, if present Operating conditions Column: silica capillary; length 30 m; internal diameter 0,25 mm Stationary phase: poly(ethylene glycol) (Supelcowax) Film thickness: 0,25 m Oven temperature: temperature programming from 70 C t
36、o 250 C at a rate of 2 C/min Injector temperature: 250 C Detector temperature: 250 C Detector: flame ionization type Carrier gas: nitrogen Volume injected: 0,3 l Carrier gas flow rate: 1 ml/min Split ratio: 1/100 Figure A.2 Typical chromatogram taken on a polar column Copyright International Organiz
37、ation for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3757:2002(E) ISO 2002 All rights reserved 5 Annex B (informative) Flashpoint B.1 General in
38、formation For safety reasons, transport companies, insurance companies, and people in charge of safety services require information on the flashpoints of essential oils, which in most cases are flammable products. A comparative study on the relevant methods of analysis (see ISO/TR 11018) concluded t
39、hat it was difficult to recommend a single apparatus for standardization purposes, given that: there is wide variation in the chemical composition of essential oils; the volume of the sample needed for certain requirements would be too costly for high-priced essential oils; as there are several diff
40、erent types of equipment which can be used for the determination, users cannot be expected to use one specified type only. Consequently, it was decided to give a mean value for the flashpoint in an informative annex in each International Standard, for information, in order to meet the requirements o
41、f the interested parties. The equipment with which this value was obtained should be specified. For further information, see ISO/TR 11018. B.2 Flashpoint of the essential oil of patchouli The mean value is +116 C. NOTE Obtained with “Luchaire” equipment. Copyright International Organization for Stan
42、dardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3757:2002(E) 6 ISO 2002 All rights reserved Bibliography 1 ISO/TR 11018:1997, Essential oils General guid
43、ance on the determination of flashpoint 2 ISO/TR 21092:1), Essential oils Characterization 1) To be published. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or netwo
44、rking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 3757:2002(E)
45、ICS 71.100.60 Price based on 6 pages ISO 2002 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 07:12:25 MDTNo reproduction or networking permitted without license from IHS -,-,-