GB/T 14454 consists of the following parts under the general title General test method for fragrance/flavor substances:
——Part 1: Fragrance/Flavor substances - Preparation of test samples;
——Part 2: Fragrance/Flavor substances - Method for valuation of odour;
——Part 4: Fragrance/Flavor substances - Determination of refractive index;
——Part 5: Fragrance/Flavor substances - Determination of optical rotation;
——Part 6: Fragrance/Flavor substances - Quantitative evaluation of residue on evaporation;
——Part 7: Fragrance/Flavor substances - Determination of freezing point;
——Part 11: Fragrance/Flavor substances - Determination of content of phenols;
——Part 12: Fragrance/Flavor substances - Method for determination of trace chlorinated compounds;
——Part 13: Fragrance/Flavor substances - Determination of carbonyl value and carbonyl compounds content;
——Part 14: Fragrance/Flavor substances - Preparation of standard solution test solution and indicator solution;
——Part 15: Oil of sassafras - Determination of safrole and isosafrole content - Gas chromatographic method on packed columns.
This is Part 4 of GB/T 14454.
Fragrance/Flavor substances - Determination of refractive index
1 Scope
This part of GB/T 14454 specifies a method for the determination of the refractive index of fragrance/flavor substances.
This part is applicable to the determination of refractive index of fragrance/flavor substances.
2 Normative references
The following documents contain provisions which, through reference in this part of GB/T 14454, constitute provisions of this part. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply to this part.
GB/T 14454.1 Fragrance/Flavor substances - Preparation of test samples (GB/T 14454.1-2008, ISO 356: 1996, MOD)
3 Terms and definitions
For the purposes of this part of GB/T 14454, the following term and definition apply.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Operating procedures
8 Determination
9 Expression of results
10 Test report
Annex A (Normative) Operating procedures of Abbe refractometer
