《ISO-11020-1998.pdf》由会员分享，可在线阅读，更多相关《ISO-11020-1998.pdf（10页珍藏版）》请在三一文库上搜索。
1、A Reference number ISO 11020:1998(E) INTERNATIONAL STANDARD ISO 11020 First edition 1998-07-01 Oil of turpentine, Iberian type (Pinus pinaster Sol.) Huile essentielle de trbenthine, type Ibrique (Pinus pinaster Sol.) Copyright International Organization for Standardization Provided by IHS under lice
2、nse with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 22:22:19 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11020:1998(E) ISO 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utili
3、zed 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 Internetcentraliso.ch X.400c=ch; a=400net; p=iso; o=isocs; s=
4、central Printed in Switzerland ii Foreword ISO (the International Organization for Standardization) is a worldwide fed- eration of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body i
5、nterested 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 collabo- rates closely with the International Electrote
6、chnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are cir- culated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a
7、vote. International Standard ISO 11020 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 IHS under license with ISO Licensee=NASA Technical Stand
8、ards 1/9972545001 Not for Resale, 04/24/2007 22:22:19 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISOISO 11020:1998(E) 1 Oil of turpentine, Iberian type (Pinus pinaster Sol.) 1 Scope This International Standard specifies certain character- istics
9、of oil of turpentine, Iberian type (Pinus pinaster Sol.), in order to facilitate assessment of its quality. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the e
10、ditions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to in- vestigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of curr
11、ently valid Inter- national Standards. ISO/TR 210:1), Essential oils General rules for packaging, conditioning and storage. ISO/TR 211:2), Essential oils General rules for labelling and marking of containers. ISO 212:1973, Essential oils Sampling. ISO 279:3), Essential oils Determination of rela- ti
12、ve density at 20 C Reference method. ISO 280:4), Essential oils Determination of re- fractive index. ISO 592:5), Essential oils Determination of optical rotation. ISO 1242:6), Essential oils Determination of acid value. ISO 3405:1988, Petroleum products Determination of distillation characteristics.
13、 ISO 4715:1978, Essential oils Quantitative evalua- tion of residue on evaporation. ISO 11024-1:7), Essential oils General guidance on chromatographic profiles Part 1: Preparation of chromatographic profiles for presentation in standards. ISO 11024-2:7), Essential oils General guidance on chromatogr
14、aphic profiles Part 2: Utilization of chromatographic profiles of samples of essential oils. 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 oil of turpentine, Iberian type essential oil, obtained by superheated steam distilla- tion at a temperatur
15、e below 180 C, of the gum resin from Pinus pinaster Sol., of the Pinaceae family, mainly produced in Portugal and Spain _ 1) To be published. (Revision of ISO 210:1961) 2) To be published. (Revision of ISO 211:1961) 3) To be published. (Revision of ISO 279:1981) 4) To be published. (Revision of ISO
16、280:1976) 5) To be published. (Revision of ISO 592:1981) 6) To be published. (Revision of ISO 1242:1973) 7) To be published. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 22:22
17、:19 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11020:1998(E) ISO 2 4 Requirements 4.1 Appearance Clear, mobile liquid. 4.2 Colour Colourless. 4.3 Odour Characteristic. 4.4 Taste Piquant and acrid. 4.5 Relative density at 20 C, 20 20 d Minimum:0,860 Maximum:0,872 4.
18、6 Refractive index at 20 C Minimum:1,465 0 Maximum:1,475 0 4.7 Optical rotation at 20 C Range from 40 to 28. 4.8 Distillation test The temperature at the beginning of the distillation shall be higher than 150 C, and at least 90 % of distil- late shall be obtained at a temperature not exceeding 170 C
19、. 4.9 Residue on evaporation, as a percentage Maximum:2,5 % (m/m) 4.10 Acid value Maximum:1,0 4.11 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
20、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. 4.12 Flashpoint Information on the flashpoint is given in annex B. 5 Sampling See ISO 212. Minimum volume of final sample:
21、150 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. Table 1 Chromatographic pr
22、ofile ComponentMinimum % Maximum % -Pinene7185 Camphene0,61,5 -Pinene1120 Myrcene0,41,5 Limonene1,07,0 -3-Carene0,1 -Caryophyllene0,33,0 Longifolene0,22,5 Caryophyllene oxide0,5 NOTE The chromatographic profile is normative, contrary to typical chromatograms given for information in annex A. Copyrig
23、ht International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 22:22:19 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO ISO 11020:1998(E) 3 6.4 Distillation test See ISO
24、3405. 6.5 Residue on evaporation, as a percentage See ISO 4715. Test portion: 2 g. Evaporation time: 3 h. 6.6 Acid 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. NOTE This essential oil is par
25、ticularly prone to oxida- tion. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 22:22:19 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11020:1998(
26、E) ISO 4 Annex A (informative) Typical chromatograms of the essential oil of turpentine, Iberian type (Pinus pinaster Sol.) Peak identification 1 -Pinene 2 Camphene 3 -Pinene 4 Myrcene 5 -3-Carene 6 Limonene 7 Longifolene 8 -Caryophyllene 9 Caryophyllene oxide Operating conditions Column: capillary,
27、 in fused silica, length 50 m, internal diameter 0,25 mm Stationary phase: 100 % fluid methyl silicon Oven temperature: programming temperature, 70 C to 180 C, at a rate of 2 C/min Injector temperature: 240 C Detector temperature: 250 C Detector: flame ionization Carrier gas: helium Volume injected:
28、 0,2 l Carrier gas flow rate: 1 ml/min. Figure A.1 Typical chromatogram 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, 04/24/2007 22:22:19 MDTNo reproduction or n
29、etworking permitted without license from IHS -,-,- ISO ISO 11020:1998(E) 5 Peak identification 1 -Pinene 2 Camphene 3 -Pinene 4 -3-Carene 5 Myrcene 6 Limonene 7 Longifolene 8 -Caryophyllene 9 Caryophyllene oxide Operating conditions Column: capillary, in fused silica, length 50 m, internal diameter
30、0,22 mm Stationary phase: polyethylene glycol 20 000 Oven temperature: isotherm at 70 C for 10 min, then temperature programming from 70 C to 200 C at a rate of 1,5 C/min, followed by final isotherm of 10 min Injector temperature: 250 C Detector temperature: 250 C Detector: flame ionization Carrier
31、gas: hydrogen Volume injected: 0,20 l Carrier gas flow rate: 2 ml/min. Figure A.2 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, 04/24/2007 22:
32、22:19 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11020:1998(E) ISO 6 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 about the fl
33、ashpoint of essential oils, which in most cases are inflammable products. A comparative study on the relevant methods of analy- sis (see ISO/TR 110188) ) led to the understanding that it was hard to find a single method for standardization purposes, given that: essential oils are varied and their ch
34、emical com- positions differ to a large extent; the volume of the sample needed for certain test equipment is 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
35、 than another. Consequently, it was decided to give a mean value for the flashpoint in an informative annex in each Inter- national Standard, for information purposes, in order to meet the request of the interested parties. If possible, the method by which this value was obtained should be specified
36、. For further information, see ISO/TR 11018 8). B.2 Flashpoint of the essential oil of turpentine, Iberian type The mean value is +38 C. NOTE Obtained with “Setaflash“ equipment. _ 8) ISO/TR 11018:1997, Essential oils General guidance on the determination of flashpoint. Copyright International Organ
37、ization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 22:22:19 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS und
38、er license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 22:22:19 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11020:1998(E) ISO ICS 71.100.60 Descriptors: oils, essential oils, turpentine, specifications, characteristics, chromat
39、ograms, tests, marking, packaging, labelling, storage. Price based on 6 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 22:22:19 MDTNo reproduction or networking permitted without license from IHS -,-,-