GB/T 42239.2-2022Enzymes for detergent—Part 2: Lipase (English PDF)

Foreword

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

This document is the second part of GB/T 42239 "Enzyme preparations for washing". GB/T 42239 has issued the following parts.

--- Part 1: Alkaline protease;

--- Part 2: Lipase.

Introduction

The detergent industry is one of the important application fields of enzyme preparations. GB/T 42239 "Enzyme Preparations for Detergents" is formulated, which is for domestic detergents The product industry regulates the market segment of enzyme-containing cleaning products, guides companies in the industry to innovate and develop new products, and prevents unscrupulous companies from cheating consumption It is of great significance to promote the rapid and healthy development of the detergent industry.

GB/T 42239 "Enzyme preparations for washing" is proposed to be composed of the following two parts.

--- Part 1: Alkaline protease, the purpose is to establish the classification and technical requirements of alkaline protease for washing;

1 Scope

This document specifies the product classification, requirements, test methods, inspection rules, as well as marking, packaging, transportation, storage and shelf life.

This document is applicable to the lipase used in the detergent industry produced by microbial fermentation, purification and other processes.

2 Normative references

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

GB/T 191 Packaging, storage and transportation icon marks

GB/T 6003.1 Test sieve technical requirements and inspection Part 1: Metal wire mesh test sieve

GB/T 6005 Basic dimensions of test sieve wire mesh, perforated plate and electroformed sheet sieve

GB/T 6682 Analytical laboratory water specifications and test methods

GB/T 13174 Detergency and Cycle Washing Performance of Detergents for Clothing

GB 15258 Regulations on Preparation of Chemical Safety Labels

QB/T 2739 Preparation of test solutions for titration analysis (volume analysis) of commonly used test methods for washing products

JJF1070 Quantitative packaging commodity net content measurement inspection rules

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Symbols and abbreviations

The following symbols and abbreviations apply to this document. JB-04.Carotene lard stained cloth. F1.Whiteness value before washing.