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GB/T 37491-2019 English PDF

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GB/T 37491-2019: Guideline of low oxygen control grain storage insect
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PDF similar to GB/T 37491-2019


Standard similar to GB/T 37491-2019

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Basic data

Standard ID GB/T 37491-2019 (GB/T37491-2019)
Description (Translated English) Guideline of low oxygen control grain storage insect
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B20
Classification of International Standard 65.020.01
Word Count Estimation 5,593
Date of Issue 2019-06-04
Date of Implementation 2020-01-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 37491-2019: Guideline of low oxygen control grain storage insect

---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.
Guideline of low oxygen control grain storage insect ICS 65.020.01 B20 National Standards of People's Republic of China General rules for preventing and controlling stored grain pests with hypoxia 2019-06-04 released 2020-01-01 Implementation State Administration for Market Regulation Issued by China National Standardization Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the National Grain and Material Reserve Bureau. This standard is under the jurisdiction of the National Cereals and Oils Standardization Technical Committee (SAC/TC270). Drafting organizations of this standard. China Grain Reserve Management Corporation, China Grain Reserve Chengdu Institute Co., Ltd., National Grain Administration Standard Quality The center, the National Grain Administration Institute of Science, Henan University of Technology, and the Central Reserve Grain Meihekou Depot directly. The main drafters of this standard. Bu Chunhai, Gao Sufen, Wang Zhengyou, Li Keqiang, Yang Jian, Yan Xiaoping, Zhou Hao, Fu Pengcheng, Li Haojie, Zhao Huiyi, Shi Tianyu, Wang Dianxuan, Bai Chunqi, Xu Shengwei, Li Zhimin. General rules for preventing and controlling stored grain pests with hypoxia

1 Scope

This standard specifies the terms and definitions, principles, basic requirements, time and concentration requirements for hypoxia prevention and control of stored grain pests, and safety requirements. Requirement and evaluation of control effect. This standard applies to granaries or grain piles in a closed state. The types of grains include rice, corn, wheat and soybeans.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB 2894 Safety signs and guidelines for their use GB 8958 Safety Regulations for Hypoxic Dangerous Work GB 12358 General technical requirements for ambient gas detection and alarm devices in workplaces GB/T 16556 Self-contained open-circuit compressed air breathing apparatus GB/T 25229 Air tightness requirements for grain storage warehouses GB/T 29890 Technical Specifications for Grain and Oil Storage LS/T 1201 Phosphine circulation fumigation technical specification JB/T 6427 Pressure swing adsorption oxygen and nitrogen production equipment

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Low oxygen control grain storage insects lowoxygencontrolgrainstorageinsect The process of maintaining the oxygen concentration of 2% to 5% in the granary or grain pile to prevent and control stored grain pests. 3.2 Hypoxia insecticide lowoxygenkilgrainstorageinsect The process of maintaining the oxygen concentration in the granary or grain pile below 2% to kill the stored grain pests.

4 Principle

The oxygen concentration in the grain pile is reduced to a certain level by filling carbon dioxide or nitrogen into the grain bin or grain pile with good airtightness. And maintain the corresponding time to inhibit the respiration of stored-grain pests so that they die or cannot reproduce, so as to achieve the purpose of preventing and controlling stored-grain pests.

5 Basic requirements

5.1 Air tightness requirements 5.1.1 The air tightness of the warehouse for the air conditioning of the single-storey warehouse shall meet the requirements of GB/T 25229.The air tightness under the membrane increased from -300Pa to

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