The main basis for the price of wheat is the weight of wheat, and it is also an important criterion for judging the level of wheat, especially when it comes to marginal figures of weight, the weight of the buyers and sellers will have a direct impact. From the several cases that we have here, the error in the determination of the bulk density by both parties has exceeded the national standard deviation by 39/L. According to GB5498-85 food and oil testing, the test method for bulk density was used. The application of the bulk density tester can accurately measure wheat. WeChat sweep to get more professional information:
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In addition, the preparation of sample i fullness defect, the purchase, the seller has a loophole to be found, the provisions that according to J.3 regulations (upper wheat 4.smm, lower 1.smm) of the sieve layer several times for screening, Mixing and measuring the weight, not tight enough, in the end is 4.smm' sieve layer all through the mixing or part of the mixing, the two measurement errors are quite large.
Through the determination of the bulk density tester, the full pass and part of the pass-through error reach a maximum of 109/L, which greatly exceeds the standard error of the national standard, causing unnecessary trouble. I personally believe that passing through the 4.smm sieve layer should not be passed, because Most of the products passed through in the upper layer are imperfect grains, and imperfect grains are also the basis for pricing. Therefore, in the stipulation description, the screening layer according to the provisions in 1.3 should be divided into several times. The wheat under the sieve should be mixed and weighed so that it will not be pressed. Grade price (especially more serious for worms). This is a shallow understanding of our specific operation, please expert advice. 