GB/T 5500-1985 Inspection of grains and oilseeds - Inspection method for purity of sweet potato slices

GB/T 5500-1985 Inspection of grain and oilseeds - Inspection of purity of sweet potato slices GB/T5500-1985 Standard download decompression password: www.bzxz.net

5500-85
National Standard of the People's Republic of China
Inspection of grain and oilseedsMethodsfortestificationofpurityrateofsweetThis standard applies to the test of the purity rate of sweet potato flakes. Instruments and appliances
1.1 Pan balance: sensitivity 0.1g;
1.2 Analysis plate;
1.3 Tweezers, etc.
Operation method
potato flakes
Weigh 500g (W) of the sample that has been tested for impurities, and first wipe out the insect and mold spots from the appearance according to the standard. Then break it to identify whether there is discoloration or deterioration in the middle of the potato flakes. Weigh the imperfect potato flakes together (W1). 3 Calculation of results
The purity rate of sweet potato slices is calculated according to the following formula: W-W1-2
Purity rate
Wherein: W1 is the weight of imperfect potato chips, g;
w is the weight of the sample, g.
The purity rate of sweet potato slices is not subject to double testing, and the test result is taken to the first decimal place. Additional notes:
This standard was proposed by the Ministry of Commerce of the People's Republic of China. This standard was drafted by the Grain Storage and Transportation Bureau of the Ministry of Commerce. The main drafters of this standard are Gao Xiuwu, Yang Haoran, Wu Yanxia, ​​and Lv Guifen. Issued by the State Bureau of Standards on November 2, 1985www.bzxz.net
Implementation on July 1, 1986
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