GB/T 14455.7-2008 Active National standards

GB/T 14455.7-2008 Fragrance/Flavor substances—Determination of ester value after acetylation and evaluation of free alcohols and total alcohols content

GB/T 14455.7-2008 Fragrance/Flavor substances—Determination of ester value after acetylation and evaluation of free alcohols and total alcohols content

Publish Date: 2008-07-15 Implement Date: 2008-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 14455.7-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Perfume and fragrances

ICS Name: Essential oil

Publish Date: 2008-07-15

Implement Date: 2008-11-01

Pages: 9 pages

Scope

The first method of GB/T 14455 specifies a method for evaluating the content of free alcohols and total alcohols in essential oils and determining the alcohol content of single-separated and synthetic fragrances by measuring the ester value before and after acetylation of the sample with acetic anhydride in the presence of sodium acetate. This method is not suitable for essential oils containing a large amount of tertiary alcohols (such as linalool and pinene alcohol), as tertiary alcohols cannot be completely acetylated; nor is it suitable for essential oils containing a large amount of phenols, lactones, aldehydes, and ketones that are easily enolized, as these components will also be acetylated in addition to free alcohols.

Development Information

Word Count: 16 Thousand words Pages: 9 pages

Same series standard

GB/T 14455.1-2008 Essential oils—Principles of nomenclature GB/T 14455.3-2008 Fragrance/Flavor substances—Evaluation of solubility(miscibility) in ethanol GB/T 14455.5-2008 Fragrance/Flavor substances—Determination of acid value or acid content GB/T 14455.6-2008 Fragrance/Flavor substances—Determination of ester value or ester content

Replace the following standards

GB/T 14455.7-1993 Essential oils—Determination of ester value after acetylation and evaluation of free alcohols and total alcohols content GB/T 14455.8-1993 Essential oils(containing tertiary alcohols)—Estimation of free alcohols content by determination of ester value after acetylation GB/T 14457.6-1993 Isolate and synthetic aroma chemicals—Determination or primary or secondary alcohols content by acetylation GB/T 14457.8-1993 Isolate and synthetic aroma chemicals—Determination of tertiary content by acetyl chloride-dimethyl aniline method

Referenced Standards

GB/T 14454.1-1993 Aromatics—Preparation of test sample GB/T 14454.1-2008 Fragrance/Flavor substances—Preparation of test samples GB/T 14454.14-1993 Aromatics—Preparation of standard solution, test solution and indicator solution GB/T 14454.14-2008 Fragrance/Flavor substances—Preparation of standard solution,test solution and indicator solution GB/T 14455.6-1993 Essential oils—Determination of ester value GB/T 14455.6-2008 Fragrance/Flavor substances—Determination of ester value or ester content

Adopt standards

ISO 1241:1996 ISO 3794:1976

Related Standards

GB/T 11424-1989 Replaced

GB/T 11424-1989 Oil of litsea cubeba [Litsea cubeba (lour.)pers.]

Publish Date: 1989-07-04

GB/T 11425-1989 Replaced

GB/T 11425-1989 Oil of cassia (Cinnamomum cassia nees)

Publish Date: 1989-07-04

GB/T 11538-1989 Replaced

GB/T 11538-1989 Essential oils—Analysis by gas chromatography on capillary columns—General method

Publish Date: 1989-07-11

GB/T 11539-1989 Replaced

GB/T 11539-1989 Isolate and synthetic aromatics—Analysis by gas chromatography on packed columns—General method

Publish Date: 1989-07-11

GB/T 11540-1989 Replaced

GB/T 11540-1989 Isolate and synthetic aroma chemicals—Determination of relative density

Publish Date: 1989-07-11

GB/T 14454.11-1993 Replaced

GB/T 14454.11-1993 Aromatics—Determination of phenol content

Publish Date: 1993-06-05