grain.com 2001-11-06 14:17 China Grain Network
1 Topic Content and Scope of Application
This standard specifies the terminology of rapeseed, Quality indicators, test methods and packaging, transportation, storage requirements.
This standard applies to Ganlan type, cabbage type, mustard type of commercial rapeseed.
2 References to standards
GB 5491 grain, oilseed test cuttings, sample method
GB 5492 grain, oilseed test color, odor, taste identification method
GB 5494 grain, oilseed test impurities, imperfect grains test method
GB 5497 grain, oilseed test moisture determination method
GB 5512 grain, oilseed test Crude Fat Determination Method
GB 8115 Grain Packaging Sacks
3 Terminology
3.1 Oil content: the percentage of crude fat content in rapeseed.
3.2 Impurities: through the specified sieve layer and no oil production value of the material, including the following:
3.2.1 sieve under the material: through the diameter of 1.0mm round hole sieve material.
3.2.2 Inorganic impurities: soil, sand, gravel, masonry blocks and other inorganic impurities.
3.2.3 Organic substances: rapeseed, heterogeneous grain particles and other oil seeds without oil production value and other organic substances.
3.3 Moldy grains: grains with mold, cotyledon discoloration and deterioration.
3.4 Color, odor: the combined color and odor of a batch of rapeseed.
4 Quality indexes
4.1 Rapeseed is graded according to oil content. The quality indexes are shown in the following table:
4.2 The base indexes and valuation methods for oil content valuation are determined by each province.
4.3 The limit of moldy grain is 2%, and the treatment of exceeding the limit is stipulated by each province.
Health indicators should be consistent with the relevant state regulations.
Oil content (in standard water, impurity), % impurities, moisture, color, odor
Minimum indicator % %
1 40
2 39
3 38
4 37
5 36 3.0 8.0 normal
6 35
7 34
8 33
4.5 The phytosanitary program should comply with the relevant state regulations.
5 Inspection Methods
5.1 The cuttings and samples of rapeseed samples shall be taken according to GB 5491.
5.2 Determination of oil content of rapeseed is carried out according to GB 5512.
5.3 Rapeseed impurity test is carried out according to GB 5494.
5.4 Rapeseed moisture test according to GB 5497 implementation.
5.5 Rapeseed color and odor identification according to GB 5492 implementation.
6 Packaging, transportation and storage
6.1 The packaging of rapeseed should meet the requirements of GB 8115 when using sacks.
6.2 The transportation and storage of rapeseed shall be carried out in accordance with the relevant regulations of the Ministry of Commerce of the People's Republic of China*** and the State.