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1送验样品称重1.1操作方法中等职业学校农业技能大赛《种子质量检测竞赛规程》中提供的送验样品,是纸袋包装的无重型杂质的小麦种子500g左右。检测前,应对其进行称重,并作好记录。选用精度0.1g的天秤称重,结果保留1位小数。关于小数位数的保留问题,国家标准《农作物种子检验规程》中有明确规定,所称重量1.0000g以下的保留4位小数位数;所称重量1.000~9.999g的
1 delivery of samples Weighing 1.1 Methods of operation Secondary Vocational School Agricultural Skills Competition “Seed quality testing competition rules” to send samples of the inspection, is no heavy baggage packaging wheat seeds about 500g. Before testing, it should be weighed, and make a record. Select the accuracy of 0.1g weighing scales, the results retained a decimal. On the issue of the number of decimal places reserved, the national standard “Crop Seed Inspection Regulations” clearly states that the weight of less than 1.0000g reserved 4 decimal places; the weight of 1.000 ~ 9.999g