GB 11760-1989 Rice and Barley GB11760-1989 Standard Download and decompression password: www.bzxz.net

Subject content and scope of application
National Standard of the People's Republic of China
Rice and barley
Hulless barley
GB/T11760-89
This standard specifies the classification, quality indicators, terminology, inspection methods, packaging, transportation and storage requirements of rice and barley (yuanmai, qingke).
This standard applies to commercial rice and barley for food and feed. Reference standards
GB2715
Standard for the allowable amount of aflatoxin B1 in foodSanitary standard and test method for dibromoethane residue in foodGB4790
GB4809
Standard for the allowable amount of fluorine in food
GB5127
Standard for the allowable residue of dichlorvos, dimethoate, malathion and parathion in foodGB5009.36Analytical methods for food hygiene standardsGB5491
Testing method for grain and oilseeds by sample support and sampling
GB5492
GB5493
Grain and oil inspection Color, odor, taste identification method Grain and oil inspection
Type and intermixing inspection method
Grain and oil inspection
Impurity and imperfect grain inspection method
GB5494
Grain and oil inspection
GB5497
Water content determination method
GB5498
Grain and oil inspection
Bulk density determination methodbzxZ.net
3 Terms
3.1 Bulk density: The weight of rice and barley grains in a certain volume, expressed in g/L. 3.2 Imperfect grains: grains with imperfect grains but still edible value. Including the following types: 3.2.1
Insect-damaged grains: grains that are damaged by insects and damage the embryo or endosperm. 3.2.2 Diseased grains: grains with diseased spots on the surface, which damage the embryo or endosperm. 3.2.3 Broken grains: grains that are flattened, broken, and have damaged the embryo or endosperm. 3.2.4 Budded grains: grains with buds or young roots breaking through the seed coat. 3.2.5 Grains that need to be changed: grains with mold on the surface or discolored and deteriorated endosperm. 3.3 Fusarium spores: grains with wrinkled, dull white, obvious pink mold, black husks in between, and some grains with purple surfaces, which are different from normal purple rice and barley. 3.4 Impurities: substances that pass through the specified sieve layer and have no edible value, including the following: 3.4.1 Screened materials: substances that pass through the 1.5mm round hole sieve. 3.4.2 Minerals: sand, coal slag, bricks and tiles and other minerals. 3.4.3 Other impurities: rice and barley grains with no edible value, grains of foreign species and other substances. 3.5 Color and smell: the comprehensive color and smell of a batch of rice and barley. 4 Classification
Divided into two categories according to the sowing season:
4.1 Winter sowing rice and barley.
4.2 Spring sowing rice and barley.
5 Quality indicators
5.1 Various types of rice and barley are classified according to bulk density. The grade indicators and other quality indicators are as follows: 5.1.1
Grade H
Grade H
Quality indicators of winter sowing rice and barley are shown in Table 1:
Bulk density!
Minimum index
Good grain H
Impurities, %
"Water
Mineral content!
Spring-sown rice and barley quality indexes are shown in Table 2
Minimum index
Impurities,
"Smell
13.0"Normal
-Water color
【Total amount
Mineral content!
All kinds of rice and barley are priced based on the third grade. 0.5
%丨Smell
13.0|Normal
The basic index of bulk density for price increase and decrease of all items is implemented. Add 10g/L on the basis of the third-class bulk density index. The maximum moisture content of purchased rice and barley shall be stipulated by the provinces, autonomous regions, and municipalities directly under the central government. 5.4
5.5 The maximum limit of fusarium-damaged kernels is 4%. Those with edible value shall be classified as imperfect kernels, and those without edible value shall be classified as impurities.
5.6 Sanitary indicators shall comply with GB2715 and other relevant regulations. 5.7 Plant quarantine items shall be implemented in accordance with relevant national regulations. 6
Inspection method
The collection of rice and barley samples and the inspection of various indicators shall be carried out in accordance with the following methods: Sampling and sub-sampling shall be carried out in accordance with GB5491.
6.2 Color, aroma Taste identification shall be carried out in accordance with GB5492. Type and intermixing inspection shall be carried out in accordance with GB5493. 6.3
6.4 Inspection of impurities, imperfect grains and pure grain rate shall be carried out in accordance with GB5494. 6.5 Moisture determination shall be carried out in accordance with GB5497.
6.6 Bulk density determination shall be carried out in accordance with GB5498.
Note: The sieve layer regulations for rice and barley are: 4.5mm upper sieve layer, 1.5mm round hole sieve for lower sieve layer. 6.7 Hygiene item determination shall be carried out in accordance with GB5009.36. Packaging, transportation and storage
The packaging, transportation and storage of rice and barley must comply with the quality assurance, quantity assurance, transportation safety and classification and storage. Storage requirements, strictly prevent pollution.
Additional notes:
This standard is proposed and managed by the Grain Storage and Transportation Bureau of the Ministry of Commerce of the People's Republic of China. This standard is drafted by the Grain Bureaus of Jiangsu, Gansu and Sichuan Provinces and the Department of Commerce of Qinghai Province: The main drafters of this standard are Jin Yisheng, Zhang Wang, Wang Qinwen, Xiao Zhirui and Du Jun. This standard is interpreted by the Inspection Division of the Grain Storage and Transportation Bureau of the Ministry of Commerce. From the date of implementation of this standard, the professional standard ZBB22007-85 "Rice and Barley (Yuanmai, Qingke)" issued by the former Ministry of Commerce of the People's Republic of China will be invalid.
Approved by the State Bureau of Technical Supervision on November 16, 1989 and implemented on July 1, 1990
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