GB/T 8793-2008 Oil of cedarwood, Chinese Guizhou type (Cupressus funebris Endlicher)
1 Scope
This standard specifies the requirements, test methods, inspection rules, as well as the marking, packaging, transportation, storage, and shelf life for the oil of cedarwood, Chinese Guizhou type (Cupressus funebris Endlicher).
This standard is applicable to the oil of Cupressus funebris Endlicher.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard 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 referenced document applies.
GB/T 11538-2006 Essential oil - Analysis by gas chromatography on capillary columns - General method (ISO 7609:1985, IDT)
GB/T 11540 Fragrance/flavor substances - Determination of relative density (GB/T 11540-2008, ISO 279:1998, MOD)
GB/T 14454.2 Fragrance/flavor substances - Method for valuation of odour
GB/T 14454.4 Fragrance/flavor substances - Determination of refractive index (GB/T 14454.4-2008, ISO 280:1998, MOD)
GB/T 14454.5 Fragrance/flavor substances - Determination of optical rotation (GB/T 14454.5-2008, ISO 592:1998, MOD)
GB/T 14455.3 Fragrance/flavor substances - Evaluation of solubility (miscibility) in ethanol (GB/T 14455.3-2008, ISO 875:1999, MOD)
3 Terms and definitions
For the purposes of this standard, the following term and definition apply.
3.1
oil of cedarwood, Chinese Guizhou type
oil obtained by steam distillation of the roots of Cupressus funebris Endlicher, followed by rectification
4 Requirements
4.1 Color and appearance: A clear liquid ranging from pale yellow to yellow.
4.2 Odour: A characteristic woody aroma.
4.3 Relative density (20℃/20℃): 0.938~0.960.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation, storage, and shelf life
Annex A (Informative) Typical gas chromatogram of oil of cedarwood, Chinese Guizhou type (area normalization method)
Annex B (Informative) Content ranges of representative and characteristic components of oil of cedarwood, Chinese Guizhou type (area normalization method)
