Foreword
This document is drafted in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules of standardized documents".
This document is the first part of GB/T 42239 "Enzyme preparations for washing", which has been published in the following parts:
--Part 1:Alkaline protease; --Part 2:Lipase
--Part 2: Lipase.
Please note that some of the contents of this document may be patent related. The issuer of this document does not assume responsibility for identifying patents. This document is submitted by the China Light Industry Federation.
This document is sponsored by the National Technical Committee for the Standardization of Surfactants and Detergents (SAC/TC 272).
Introduction
The detergent industry is one of the important application fields of enzyme preparations. The formulation of GB/T 42239 "Enzyme Preparations for Detergents" is of great significance for China's detergent industry to regulate the market of enzyme-containing detergent segments, guide enterprises in the industry to innovate and develop new products, prevent unscrupulous enterprises from cheating consumers, and promote the rapid and benign development of the detergent industry.
GB/T 42239 "Enzyme Preparation for Laundry" is intended to be composed of the following 2 parts:
--Part 1: alkaline protease, the purpose is to establish the classification and technical requirements of alkaline protease for washing;
--Part 2: lipase, the purpose is to establish the classification and technical requirements of lipase for washing.
1 Scope
This document specifies the product classification, requirements, test methods, inspection rules, and marking, packaging, transportation, storage and shelf life of lipase for washing.
This document applies to the lipase made by microbial fermentation, purification and other processes for the detergent industry.
2 normative reference documents
The contents of the following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the referenced documents, only the date of the corresponding version applies to this document; do not note the date of the referenced documents, the latest version (including all the revision of the list) applies to this document.
GB/T 191 Packaging storage and transportation iconic signs
GB/T 6003.1 Test sieve technical requirements and inspection Part 1: test sieve with metal wire woven mesh
GB/T 6005 Test sieve, woven wire mesh, perforated plate and electroforming sea plate sieve hole basic size
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 13174 Detergent detergent for clothing and the determination of the cycle of detergent vermicompetence
GB 15258 Chemical safety labeling preparation requirements
QB/T 2739 Common test methods for detergents light analysis (volume analysis) with the preparation of test solutions
JJF 1070 Quantitative packaged goods net content of frugal test rules
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Lipase lipase
It can hydrolyze triglycerides (fats and oils) and release fatty acids, diglycerides, monoglycerides and glycerol at different stages, and also catalyze ester synthesis and ester exchange reaction enzymes.
4 Symbols and Abbreviations
The following symbols and abbreviations are applicable to this document.
5 Product classification
According to the product form, it is divided into liquid dosage form and solid dosage form.
6 Requirements
6.1 Appearance and physical and chemical performance requirements
The appearance of the product and physical and chemical performance indicators should comply with the provisions of Table 1.
7 Test methods
7.1 General rules
Unless otherwise specified, in the analysis only use reagents confirmed to be analytically pure and GB/T 6682 in the provisions of the water or above. 7.2 Appearance
Take an appropriate amount of the sample, placed in a dry and clean transparent laboratory vessel, under non-direct light conditions for observation.
7.3 Enzyme activity
According to Appendix A.
When using a method different from Appendix A, the conversion factor between the applied enzyme activity unit and the enzyme activity unit determined in this document should be provided.
7.4 Particle size
According to Appendix B.
8 test rules
8.1 test classification
8.1.1 factory inspection
Factory inspection items for the appearance, enzyme activity specified in Table 1.
9 logo, packaging, transportation, storage and shelf life
9.1 Logo
The outer packaging of the product uses the logo in accordance with the requirements of GB/T191.
Product packaging should be firmly affixed to the label. The label should include the product name, net content, the producer and (or) distributor's name, address and contact information, production date and shelf life, storage conditions, lot number and other required labeling. Chemical safety labeling content should be consistent with the requirements of GB 15258.
9.2 Packaging
The inner packaging of the product and (or) the inner coating of the packaging container should be made to meet the relevant provisions.
9.3 Transportation
The product should be lightly handled during transportation, should not be inverted, strictly prevent rain and sunlight, should not be stepped on the box and stacked heavy objects. The means of transportation should be clean, non-toxic and non-polluting. Should not be mixed with toxic, harmful, corrosive substances mixed transport.
Appendix A (normative) determination of enzyme activity
Appendix B (normative) Determination of particle size sieving method
Foreword
Introduction
1 Scope
2 normative reference documents
3 terms and definitions
4 Symbols and Abbreviations
5 Product classification
6 Requirements
7 Test methods
8 test rules
9 logo, packaging, transportation, storage and shelf life
Appendix A (normative) determination of enzyme activity
Appendix B (normative) Determination of particle size sieving method
