肥料中硝态氮含量的测定 氮试剂重量法
Fertilizer-Determination of nitrate nitrogen contentNitron gravimetric method
检测标准
复混肥料中钾含量的测定 四苯硼酸钾重量法
Determination of potassium content for compound fertilizers-Potassium tetraphenylborate gravimetric method
复合肥料
Compound fertilizer
复混肥料中总氮含量的测定 蒸馏后滴定法
Determination of total nitrogen content for compound fertilizerstitrimetric method after distillation(ISO 5315;1984,MOD)
塑料直角撕裂性能试验方法
塑料 拉伸性能的测定 第3部分:薄膜和薄片的试验条件
Plastics-Determination of tensile properties-Part 3;Test conditions for films and sheetsn(ISO 527-3:1995,IDT)
塑料薄膜和薄片 厚度测定 机械测量法
Plastics film and sheeting-Determination of thickness by mechanical scanning
聚乙烯吹塑农用地面覆盖薄膜
Polyethylene blown mulch film for agricultural uses
泵的噪声测量与评价方法
Methods of measuring and evaluating noise of pumps
离心泵技术条件(Ⅰ类)
Technical specifications for centrifugal pumps( Class ? )
