脲(尿素) 标准查询与下载
共找到 150 条与 脲(尿素) 相关的标准，共 10 页
本标准规定了化学试剂中脲的性状、规格、试验、检验规则和包装及标志。 本标准适用于化学试剂中脲的检验
Chemical reagent.Urea
本标准规定了化学试剂脲（尿素）的技术要求、试验方法、检验规则和包装及标志。 本标准适用于化学试剂脲（尿素）的检验
Chemical reagent.Urea
Heavy chemicals. Carbamlde (urea) for Industrlal use. Determinatlon fo alkallnlty - TMmetrfe method
Heavy chemicals. Carbamide (urea) for industrial use. Determination of vvater content Gravimetric me- thod
Heavy chemlcals. Carbamlde (urea) for Industrlal use. Determlnatlon ad bfuret content Photometrlc method
使用SN/T 3315的本部分的人员应有正规实验室工作的实践经验。本部分并未指出所有可能的安全问题，使用者有责任采取适当安全和健康措施，并保证符合国家有关法规的条件。 范围:SN/T 3315的本部分规定了采用氢氧化钠/硫脲/尿素法测定去除非纤维物质后的粘胶纤维、再生竹纤维、莫代尔纤维、铜氨纤维
Textiles.Quantitative analysis of regeneration cellulose fiber and cotton.Part 7:Sodium hydroxide/thiourea/urea method
Carbamid. Method of biuret content determination
Engrais - Détermination photométrique du biuret dans l'urée
Urea for industrial use - Determination of biuret content - Photometric method
Urea for industrial use－Determination of biuret content－Photometric method
Urea for industrial use－Determination of biuret content－Photometric method
Applicable to the determination in the presence of ammoniacal salts less than 15 mg in the aliquot amount taken for the determination. In the presence
Urea for industrial use; Determination of biuret content; Photometric method
Fertilizers. Spectrophotometric determination of biuret in urea
This European Standard specifies a method for the determination of biuret in urea. The method is applicable to urea and urea-based fertilizers
Fertilizers - Spectrophotometric determination of biuret in urea
This European Standard specifies a method for the determination of biuret in urea. The method is applicable to urea and urea-based fertilizers
Fertilizers - Spectrophotometric determination of biuret in urea; English version of DIN EN 15479:2009-04
