ISO 3525:1979 pdf download.Oil of amyris
1 SCOPE AND FIELD OF APPLICATION
This Internaliondi Staliddid specifies ceitaiii characteristics of oil of amyris, with a view to facilitating the assessment of its quality.
2 REFERENCES
ISOIR 210, Essential oils — Packing.
1 SO / R 211, Essential oils — Labelling and marking containers.
I SO 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 rotation. 1)
ISO 875, Essential oils — Evaluation of miscibility with ethanol. 2)
ISO 1242, Essential oils — Determination of acid value.
I SO 3794, Essential oils (containing tertiary alcohols) — Estimation of free alcohols content by determination of ester value after acetylation.
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: 1,5050
Maximum: 1,5100
4.6 Optical rotation at 20 °C Range : + 100 to + 60°
4.7 Miscibility with 90% (V/V) 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 Esuir YdIUC after acetylation
Minimum: 180
Maximum: 198
5 SAMPLING
See ISO 212.
Minimum volume of the final sample : 50 ml.ISO 3525 pdf download.