GB/T 16451-2017Natural fatty alcohols (English PDF)

1 Scope

GB/T 16451-2017 is the Chinese national standard on natural fatty alcohols, in the field of chemical technology. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 29 December 2017 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 July 2018. Classification: ICS 71.080.60, CCS G17. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This Standard specifies the product classification, requirements, test methods, inspection rules and marks, packaging, transportation and storage for natural fatty alcohols. This Standard is applicable to a series of fatty primary alcohol products obtained from natural vegetable oils and their derivatives through alcoholysis or hydrolysis, esterification, hydrogenation and distillation.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 617, Chemical reagent -- General method for the determination of melting range

GB/T 6682, Water for analytical laboratory use -- Specification and test methods

GB/T 7383-2007, Non-ionic surface active agents -- Determination of hydroxyl value

GB/T 9282.1, Clear liquids -- Estimation of colour by the platinum-cobalt scale -- Part

3 Product classification

Natural fatty alcohols are divided into ten categories according to the carbon chain length. C8~10 alcohols, C12~14 alcohols, C14~16 alcohols, C16~18 alcohols, C8 alcohols, C10 alcohols, C12 alcohols, C14 alcohols, C16 alcohols, and C18 alcohols.

4 Requirements

Natural fatty alcohols have an inherent characteristic odor. The physical and chemical indicators shall meet the requirements in Table

2.When used as cosmetic raw material, they shall also meet the requirements in Table 3.

5 Test methods

Unless otherwise stated, only reagents confirmed to be analytically pure and grade three water in accordance with GB/T6682 are used in the analysis.

5.1 Sample preparation After mixing the samples (solid samples shall be melted and mixed) before sampling test.

5.2 Appearance Put samples in beakers or glass jars. Visually inspect the color and state of the sample at 30°C.

7 Marks, packaging, transportation, storage

7.1 Marks Each package of natural fatty alcohol and the accompanying quality certificate shall have the following marks.

7.2 Packaging Bulk fatty alcohol products are generally transported by tank truck or ISOTANK. Generally, fatty alcohol products are packaged in steel drums, composite plastic woven bags or cartons. The barrel mouth of the barreled product shall be sealed. The bagged or boxed product shall be well sealed.

7.3 Transportation Fatty alcohols shall be transported with coverings to avoid direct sunlight, rain and moisture. They shall be lightly loaded and unloaded. Avoid damage to the packaging.