ISO 3525:1979 pdf download.Oil of amyris.
ISO (the International Organization for Standardization) is a worldwide federation of national standards institutes (ISO member bodies). The work of developing International Standards is carried out through ISO 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, in liaison with ISO, also take part in the work.
Draft InternatIonal Standards adopted by the technical committees we cliculated to the member bodies for approval before their acceptance as International Standards by the ISO Council.
International Standard ISO 3525 was developed by Technical Committee ISOITC 54. Essential oils, and was circulated to the member bodies in October 1977.
It has been approved by the member bodies of the following countries:
ISO 3525 speiifies certain characterktics of oil of amyris, with a view to facilitating the assessment of its quality.
2 IthFERENCES
ISOIR 210, Essential oils — Packing.
ISO/R 211, Essential oils — Labelling and marking containers,.
ISO 212, Essential oils — Sampling.
ISO/R 279, Determination of the density and relative density of essential oils.
ISO 280, Essential oils — Determination of refractive index.
ISO 592, Essential oils — Determination of optical rotativil. 1)
3 DEFINITION
oil of amyris : The oil obtained by steam distillation of the wood of Amyris balsamifera Linnaeus grown in the area bordering on the Carribean Sea and the Gulf of Mexico.
4 REQUIREMENTS
4.1 Appearance
Clear, slightly viscous liquid.
4.2 Colour
Pale yellow to amber.
4.3 Odour
Characteristic, woody.
4.4 Relative density at 20/20 °C
Minimum: 0,946
Maximum: 0,978
4,5 Refractive index at 20 °C
Minimum: 1,505 0
Maximum: 1,5100
4.6 Optical rotation at 20 C Range : + 100 to + 600
4.7 Miscibility with 90% (VIV) ethanol at 20°C
The miscibility with 90% (V/V) ethanol shall be 1 volume in 1 volume to give a clear solution, sometimes with opalescence on dilution.
4.8 Acid value
Maximum: 3,0
4,9 Estur value after acetylation
Minimum: 180
Maximum: 198
5 SAMPLING
6 METHODSOF TEST
6.1 Relative density at O/ZO °C See ISO! R 279.
6.2 Refractive index at 20 °C See ISO 280.
6.3 Optical rotation at 20 °C See ISO 592.
6.4 Miscibility with 90 % (VI V) ethanol at 20°C See ISO 875.
6.5 Acid value See ISO 1242.
6.6 Ester value after acetylation
See ISO 3794.
Saponitication time: 3 h.
7 PACKING, LABELLING AND MARKING See ISO/R 210 and ISO/R 211.ISO-3525-1979