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GB/T 40461-2021肥料中钠含量的测定Determination of sodium content for fertilizers2022-03-18

GB/T 40462-2021有机肥料中19种兽药残留量的测定液相色谱串联质谱法Determination of 19 veterinary medicines in ...2022-03-18

GB/T 40493-2021人造板饰面材料中铅、镉、铬、汞重金属元素含量测定Determination of lead, cadmium, chromium and ...2022-03-18

GB/T 40508-2021生物质燃气中焦油和灰尘含量的测定方法Determination of tar and dust concentrations in biomass-b...2022-03-18

GB/T 40549-2021焦炭堆积密度小容器测定方法Determination of bulk density of coke in a small container...2022-03-18

GB/T 40611-2021塑料海水沙质沉积物界面非漂浮塑料材料最终需氧生物分解能力的测定通过测定密闭呼吸计内耗氧量的...2022-03-18

GB/T 261-2021闪点的测定宾斯基-马丁闭口杯法Determination of flash point. Pensky-Martens closed cup method...2022-03-18

GB/T 1687.4-2021硫化橡胶在屈挠试验中温升和耐疲劳性能的测定第4部分：恒应力屈挠试验Rubber,vulcanized. Determin...2022-03-18

GB/T 5990-2021耐火材料导热系数、比热容和热扩散系数试验方法（热线法）Refractory materials. Determination of ther...2022-03-14

GB/T 12690.4-2021稀土金属及其氧化物中非稀土杂质化学分析方法第4部分：氧、氮量的测定脉冲-红外吸收法和脉冲-热导...2022-03-14

GB/T 14949.6-2021锰矿石铜、铅和锌含量的测定火焰原子吸收光谱法Manganese ores. Determination of copper, lead...2022-03-14

GB/T 13697-2021二氧化铀粉末和芯块中碳的测定高频感应炉燃烧-红外检测法Determination of carbon in uranium oxid...2022-03-14

GB/T 17144-2021石油产品残炭的测定微量法Petroleum products. Determination of carbon residue. Micro method...2022-03-14

GB/T 18115.4-2021稀土金属及其氧化物中稀土杂质化学分析方法第4部分:钕中镧、铈、镨、钐、铕、钆、铽、镝、钬、铒...2022-03-14

GB/T 18012-2021胶乳 pH值的测定Rubber latex. Determination of pH2022-03-14

GB/T 18996-2021银合金首饰银含量的测定氯化钠或氯化钾容量法(电位滴定法)Silver jewellery alloys. Determinatio...2022-03-14

GB/T 22271.2-2021塑料聚甲醛（POM）模塑和挤出材料第2部分：试样制备和性能测定Plastics. Polyoxymethylene(POM) mould...2022-03-14

GB/T 22459.3-2021耐火泥浆第3部分：粘接时间试验方法Refractory mortars. Part 3: Determination of joint stabilit...2022-03-14

GB/T 22930.1-2021皮革和毛皮金属含量的化学测定第1部分：可萃取金属Leather and fur. Chemical determination of m...2022-03-14

GB/T 22930.2-2021皮革和毛皮金属含量的化学测定第⒉部分:金属总量Leather and fur. Chemical determination of m...2022-03-14

GB/T 23801-2021中间馏分油中脂肪酸甲酯含量的测定红外光谱法Determination of fatty acid methyl ester (FAME) co...2022-03-14

GB/T 26703-2021皮鞋跟面耐磨性能试验方法Determination of abrasion resistance for top piece of leather shoes...2022-03-14

GB/T 29493.2-2021纺织染整助剂中有害物质的测定第2部分：全氟化合物（PFCs）的测定Determination of harmful substances...2022-03-14

GB/T 29493.1-2021纺织染整助剂中有害物质的测定第1部分：禁限用阻燃剂的测定Determination of harmful substances i...2022-03-14

GB/T 29614-2021硫化橡胶多环芳烃含量的测定Vulcanized rubber. Determination the content of polycyclic aromati...2022-03-14

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