GB/T 6027-2023n-Butanol for industrial use (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 6027-1998 "Industrial n-butanol". Compared with GB/T 6027-1998, except for structural adjustments and editorial changes, In addition, the main technical changes are as follows.

a) Changed the scope of application (see Chapter 1, Chapter 1 of the 1998 edition);

b) Changed the technical requirements (see Table 1, Table 1 of the 1998 edition);

c) Added a method for measuring appearance (see 5.2);

d) Added the method of measuring colorimetry by tristimulus colorimetry (see 5.3);

e) The method for determining boiling range is deleted (see 4.3 of the 1998 edition);

f) The method for determining density has been changed (see 5.4, 4.2 of the 1998 edition);

g) The determination method of n-butanol content has been changed and the determination method of isobutanol content has been added (see 5.5, 4.4 of the 1998 edition);

h) The calculation formula for acidity determination has been changed (see 5.7.5, 4.6.5 of the 1998 edition);

i) Added the method of determining moisture by Karl Fischer Coulomb coulometric method (see 5.8.2).

1 Scope

This document specifies the technical requirements, test methods, inspection rules, marking and accompanying documents, packaging, transportation and storage of n-butanol for industrial use.

This document applies to n-butanol for industrial use produced by synthetic methods.

Note: The molecular formula of n-butanol is C4H10O, the structural formula is CH3(CH2)3OH, and the relative molecular mass is 74.12 (according to the 2022 international relative atomic mass).

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB 190 Dangerous goods packaging markings

GB/T 601 Preparation of chemical reagent standard titration solution

GB/T 603 Preparation of preparations and products used in chemical reagent test methods

GB/T 2013 Density determination method for liquid petrochemical products

GB/T 3143 Liquid chemical product color determination method (Hazen unit---platinum-cobalt color number)

GB/T 6283 Determination of moisture content in chemical products Karl Fischer method (general method)

GB/T 6324.2 Test methods for organic chemical products Part 2: Determination of dry residue after evaporation of volatile organic liquids in water bath

GB/T 6324.6 Test methods for organic chemical products Part 6: Determination of liquid colorimetric method Tristimulus value colorimetry

GB/T 6324.8 Test methods for organic chemical products Part 8: Determination of moisture content of liquid products by Karl Fischer coulombometry

GB/T 6678 General principles for sampling of chemical products

GB/T 6680 General rules for sampling of liquid chemical products

GB/T 6682 Specifications and test methods for water used in analytical laboratories

GB/T 8170 Numerical rounding rules and representation and determination of limit values

GB/T 9722 General rules for gas chromatography with chemical reagents

3 Terms and definitions

There are no terms or definitions to be defined in this document.

4 Technical requirements

The technical requirements for n-butanol for industrial use should comply with the provisions of Table 1.