Path:
Home >
GB/T >
Page635 > GB/T 43994-2024
Price & Delivery
US$199.00 · In stock · Download in 9 secondsGB/T 43994-2024: Moisture content for grain safe storage
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See
step-by-step procedureStatus: Valid
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 43994-2024 | English | 199 |
Add to Cart
|
3 days [Need to translate]
|
Moisture content for grain safe storage
|
Click to Preview a similar PDF
Basic data
| Standard ID | GB/T 43994-2024 (GB/T43994-2024) |
| Description (Translated English) | Moisture content for grain safe storage |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | B20 |
| Classification of International Standard | 67.040 |
| Word Count Estimation | 10,187 |
| Date of Issue | 2024-04-25 |
| Date of Implementation | 2024-11-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 43994-2024: Moisture content for grain safe storage
---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 67:040
CCSB20
National Standards of People's Republic of China
Food Security Storage Moisture
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
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:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the State Administration of Grain and Material Reserves:
This document is under the jurisdiction of the National Technical Committee on Standardization of Cereals and Oils (SAC/TC270):
This document was drafted by: National Grain and Material Reserves Administration Scientific Research Institute, China National Grain Reserves Group Co:, Ltd:, China National Grain Reserves Chengdu
Storage Research Institute Co:, Ltd:, China Grain and Oil Quality Inspection Center Co:, Ltd:, Henan University of Technology, Hubei Grain, Oil and Food Quality Supervision and Inspection Center, Anhui
Anhui Province Grain and Oil Product Quality Supervision and Inspection Station, Guangxi Zhuang Autonomous Region Grain and Oil Quality Inspection Center, Heilongjiang Province Grain Quality Safety Monitoring and Technology
Center, Shandong Grain and Oil Testing Center, Nanjing University of Finance and Economics, Jiangsu Grain and Oil Quality Monitoring Center, Henan Grain Science Research Institute Co:, Ltd:
Department of Food Safety, Shaanxi Provincial Grain Quality and Safety Center:
The main drafters of this document are: Tang Fang, Peng Yang, Wang Zhengyou, Lan Shengbin, Fu Pengcheng, Qi Zhihui, Cheng Shufeng, Tang Jie, Li Xingjun, Kong Dexu,
Zhang Zhihang, Jiang Shiyong, Feng Yongjian, Zhang Haiyang, Cai Jingping, Xiong Ning, Ji Yishun, Liu Yongying, Ji Lanyang, Jiang Hong, Tang Pei'an, Hu Bin, Tian Lin,
Mo Xiaosong, Liu Xu, and Yin Hao:
Introduction
During the storage of grain, if the moisture content is too high, it may cause mold growth or even heat, endangering the quality and safety of stored grain; if the moisture content is too low, it may
It can affect the edible quality and processing quality of grain: Under the premise of ensuring the safe storage of grain, determining the appropriate grain storage moisture can take into account the grain
The interests of all parties involved in grain production, procurement, storage, and processing are protected: Factors that cause grain piles to heat up during storage include insect and mold growth and the spontaneous respiration of grain:
Among them, mold growth is one of the most critical factors: Mold growth is mainly related to grain moisture and temperature:
Moisture content and storage temperature can inhibit the growth and harm of stored grain mold, prevent grain from heating up and mildewing, and achieve the purpose of safe grain storage:
Food Security Storage Moisture
1 Scope
This document defines the moisture content of grains for safe storage and describes methods for testing:
This document is applicable to grain storage enterprises with corresponding storage conditions to determine the safe storage moisture values of wheat, rice, corn and soybeans:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 29890-2013 Technical Specification for Grain and Oil Storage
3 Terms and definitions
The terms and definitions defined in GB/T 29890-2013 and the following apply to this document:
3:1
Under natural climatic conditions, general techniques such as cleaning, natural ventilation, digging trenches and turning over grain surfaces, and regular monitoring of grain conditions should be adopted for stored grain:
Storage methods for technical processing and routine management measures:
[Source: GB/T 29890-2013, 3:5, modified]
3:2
The highest value of the average temperature of grain layers when calculating the average temperature of grain pile layers:
Note: The layered statistical average temperature refers to the arrangement of temperature sensors in accordance with the requirements of 5:2:7:1 of GB/T 26882:1-2011, and the grain pile temperature is statistically calculated by layer in the horizontal direction:
The average value of the temperature detection results of all valid sensors on different layers at different temperatures:
3:3
Under certain storage facilities and equipment conditions, the stored grain is subjected to technical measures such as artificial intervention temperature control, closed insulation, etc:, and the grain is regularly monitored:
A storage method that controls the average temperature of the grain pile in the entire warehouse and the average temperature of each layer of the grain pile within a certain temperature range:
Note: Mechanical ventilation, grain cooling, air conditioning temperature control, internal circulation temperature control and other technologies or technology combinations should be adopted according to local conditions to achieve temperature-controlled storage:
3:4
Under normal storage and temperature-controlled storage conditions, the highest moisture value at which grain can safely survive the summer in the local area without heating up or becoming moldy:
[Source: GB/T 29890-2013, 3:6, modified]
4 Food Safety Storage Water
The moisture content of grain storage safety is shown in Table 1: When the maximum average temperature of the grain layer is between the two temperatures in Table 1, the higher temperature value is used:
...
