GB/T 42239.1-2022 English PDF

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GB/T 42239.1-2022: Enzymes for detergent - Part 1: Alkali protease
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42239.1-2022	279	Add to Cart	3 days	Enzymes for detergent - Part 1: Alkali protease	Valid

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Basic data

Standard ID: GB/T 42239.1-2022 (GB/T42239.1-2022)
Description (Translated English): Enzymes for detergent - Part 1: Alkali protease
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y43
Classification of International Standard: 71.100.40
Word Count Estimation: 14,114
Date of Issue: 2022-12-30
Date of Implementation: 2022-12-30
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42239.1-2022: Enzymes for detergent - Part 1: Alkali protease

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 71.100.40 CCSY43 National Standards of People's Republic of China Enzyme preparations for washing - part 1. alkaline protease Posted on 2022-12-30 2022-12-30 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

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 part 1 of GB/T 42239 "Enzyme preparations for washing". GB/T 42239 has issued the following parts. --- Part 1.Alkaline protease; --- Part 2.Lipase. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China National Light Industry Council. This document is under the jurisdiction of the National Standardization Technical Committee on Surfactants and Detergents (SAC/TC272). This document is drafted by. China Research Institute of Daily Chemistry Co., Ltd., Shenzhen Baggme Biotechnology Co., Ltd., Novozymes (China) Investment Co., Ltd., Genencor (China) Bioengineering Co., Ltd., AB Enzyme Trading (Shanghai) Co., Ltd., Shanghai Dannyyue Biotechnology Co., Ltd. Technology Co., Ltd., Guangdong VTR Biotechnology Co., Ltd., Shanghai Kaimi Technology Co., Ltd., Fujian Mengjiaolan Daily Chemicals Co., Ltd. Co., Ltd., Guangdong Zhonglian Fine Chemical Co., Ltd., Yellow River Delta Jingbo Chemical Research Institute Co., Ltd., and China Leather and Shoe Research Institute have Co., Ltd., Dalian Jieshi Cleaning Products Co., Ltd., Nanjing Baisijie Biological Engineering Co., Ltd., China Light Daily Chemical Inspection and Certification Co., Ltd. The main drafters of this document. Guo Hongtao, Chen Juan, Zong Liyan, Yuan Lin, Liu Liyan, Wang Jun, Qiang Pengtao, Yao Chenzhi, He Zhiyong, Zhou Huosheng, Cai Yinghui, Duan Limin, Li Qiumei, Fang Shasha, Li Xiaohui.

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; --- Part 2.Lipase, the purpose is to establish the classification and technical requirements of lipase for washing. Enzyme preparations for washing - part 1. alkaline protease

1 Scope

This document specifies the product classification, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage of alkaline protease for washing. storage and shelf life. This document is applicable to the alkaline protease 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 4789.2 National Food Safety Standard Food Microbiological Inspection Determination of Total Bacterial Count GB 4789.3 Food Safety National Standard Food Microbiological Examination Coliform Bacteria Count 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 6368 Potentiometric method for the determination of the pH value of aqueous surfactant solutions GB/T 6682 Analytical laboratory water specifications and test methods GB 15258 Regulations on Preparation of Chemical Safety Labels JJF1070 Quantitative packaging commodity net content measurement inspection rules QB/T 2739 Preparation of test solutions for titration analysis (volume analysis) of commonly used test methods for washing products

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 alkaline protease alkaline protease It is an enzyme that can cut the peptide bond inside the protein molecule under alkaline reaction conditions, and turn the protein molecule into a small molecule polypeptide and amino acid. 3.2 The ability of proteases to catalyze the hydrolysis of proteins under alkaline conditions. Note. Alkaline protease activity is expressed in alkaline protease activity units, 1g solid enzyme powder (or 1mL liquid enzyme), under certain temperature and pH conditions, 1min Hydrolyze casein to produce 1 μg tyrosine, which is 1 unit of enzyme activity, expressed in U/g or U/mL.

4 Product categories

According to the product form, it is divided into liquid dosage form and solid dosage form. ......

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