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1、International Standard ) 590 0 1 4 4ig!b INTERNATIONAL ORGANIZATION FOR STANDARDIZATlON*MEXUlYHAPORHAR OPrAHM3AUtlR OCTAH/2.APTM3Al.Wl*ORGANlSATlON INTERNATIONALE DE NORMALISATION ;:j T i* “; ?; j ._ ,. “ ., , ,) .-.- . 1 i. 1 i I!er .1.1 I.:&. 1, .:QJi ,” , &? Oil of brazilian sassafras Huile essen
2、tielle de sassafras du Brkil First edition - 1981-09-01 iiri UDC 665.525.6 Ref. No. IS0 590-1981 (E) fii Descriptors : essential oils, sassafras, materials specifications. ii Price based on 2 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licens
3、ee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 20:36:51 MDTNo reproduction or networking permitted without license from IHS -,-,- Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards institutes (IS0 member bodies). The
4、 work of developing Inter- national Standards is carried out through IS0 technical committees. Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental,
5、in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the IS0 Council. International Standard IS0 590 was developed by Technical Committ
6、ee ISO/TC 54, Essential oils, and was circulated to the member bodies in October 1979. It has been approved by the member bodies of the following countries : Brazil India Bulgaria Italy Chile Korea, Rep. of France Netherlands Philippines Portugal South Africa, Rep. of The member body of the followin
7、g country expressed disapproval of the document on technical grounds : Canada This International Standard cancels and replaces IS0 Recommendation R 590-1967, of which it constitutes a technical revision. 0 International Organization for Standardization, 1981 0 Printed in Switzerland Copyright Intern
8、ational Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 20:36:51 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 590-1981 (E) Oil of Brazilian sassaf
9、ras 1 Scope and field of application 4.2 Colour This International Standard specifies certain characteristics of oil of Brazilian sassafras, with view to facilitating the assess- ment of its quality. 2 References ISOIR 210, Essential oils - Packing. I SO I R 211, Essential oils - Labelling and marki
10、ng containers. IS0 212, Essential oils - Sampling. IS0 279, Essential oils - Determination of density and relative density at 20 C (Reference method). IS0 280, Essential oils - Determination of refractive index. IS0 592, Essential oils - Determination of optical rotation. IS0 875, Essential oils - E
11、valuation of miscibility with ethanol. IS0 1041, Essential oils - Determination of freezing point. IS0 7355, Essential oils of sassafras and nutmeg - Determina- tion of safrole and cis- and trans-isosafrole contents - Gas chromatography method. 1 3 Definition oil of Brazilian sassafras : The oil obt
12、ained by steam distilla- tion of root, trunk and large branches of Ocotea pretiosa, Mez. 4 Requirements 4.1 Appearance Clear, mobile liquid, which may become cloudy or crystalline at low temperatures. Yellow to brownish-yellow. 4.3 Odour Characteristic, recalling safrole. 4.4 Relative density at 20/
13、20 OC Minimum : 1,082 Maximum : 1,094 4.5 Refractive index at 20 OC Minimum : 1,533 0 Maximum : 1,537 0 4.6 Optical rotation at 20 OC Range from - 0,5O to + 3,0 4.7 Miscibility with 90 % (V/v) ethanol at 20 OC The miscibility with 90 % ( Vl VI ethanol at 20 OC shall be 1 volume in 2 volumes to give
14、a clear solution. 4.8 Freezing point Minimum : 7,5 OC Maximum : 9,5 OC 4.9 Safrole and cis- and trans-isosafrole content To be completed later. 5 Sampling See IS0 212. Minimum volume of final sample : 50 ml 1) At present at the stage of draft. 1 Copyright International Organization for Standardizati
15、on Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 20:36:51 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO590-1981(E) 6 Methods of test 6.1 Relative density at 20/20 OC See IS0 279. 6.2 Refractive index a
16、t 20 OC See IS0 280. 6.3 Optical rotation at 20 OC See IS0 592. 6.4 Miscibility with 90 % (V/v) ethanol at 20 OC See IS0 875. 6.5 Freezing point See IS0 1041. 6.6 Safrole and cis- and tran.s-isosafrole content See IS0 7355. 7 Packing, labelling and marking See ISO/R 210 and ISO/R 211. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 20:36:51 MDTNo reproduction or networking permitted without license from IHS -,-,-