1 Scope
This part of GB/T 14455 specifies a method of determining the acid value or acid content of isolated and synthetic fragrance/flavor substances and the acid value of essential oils.
This method is not applicable to essential oils containing large amount of lactones.
2 Normative references
The following normative documents contain provisions which, through reference of GB/T 14455, 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 edition of the normative document referred to applies.
GB/T 14454.1 Fragrance/Flavor substances - Preparation of test samples (GB/T 14454.1-2008, ISO 356:1996, MOD)
GB/T 14454.14 Fragrance/Flavor substances - Preparation of standard solution test solution and indicator solution
GB/T 14455.6 Fragrance/Flavor substances - Determination of ester value or ester content (GB/T 14455.6-2008, ISO 709:2001, MOD)
3 Terms and definition
For the purpose of this part of GB/T 14455, the following terms and definitions apply.
3.1 acid value
number of milligrams of potassium hydroxide required to neutralize the free acids contained in 1 g of the essential oil
