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化学试剂 硝酸锶检测项目报价? 解决方案? 检测周期? 样品要求? |
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本文件规定了化学试剂硝酸锶的性状、技术要求、试验方法、检验规则和包装及标志。本文件适用于化学试剂硝酸锶的检验。
本标准规定了化学试剂硝酸铅的性状、规格、试验、检验规则和包装及标志。本标准适用于化学试剂硝酸铅的检验。分子式:Pb(NO<下标3>)<下标2>相对分子质量:331.22(根据2013年相对原子质量)
本标准规定了轻油转化催化剂化学成分分析方法。本标准适用于轻油转化催化剂中氧化镍(10 %~50 %)、三氧化二铝(20 %~70 %)、氧化钙(10 %~15 %)、氧化镁(10 %~15 %)、三氧化二铁(0.5 %~1 %)、二氧化钛(0.5 %~1 %)、二氧化硅(0.5%~13 %)、氧化钾(2 %~6 %)、二氧化锆(0.3 %~1%)和烧失量质量分数的测定。
SN/T 3056的本部分规定了烟花爆竹用硝酸钡中钡含量的测定方法、硝酸盐含量的测定方法、银钙合量的测定方法、铁含量的测定方法、水不溶物的测定方法、水分的测定方法、氯化物含量的测定方法、pH值的测定方法、吸湿率的测定方法、细度的测定方法。本部分适用于烟花爆竹用硝酸钡中钡含量的测定、硝酸盐含量的测定、鳃钙合量的测定、铁含量的测定、水不溶物的测定、水分的测定、氯化物含量的测定,pH值的测定、吸湿率的测定、细度的测定。
This International Standard specifies the test methods and their associated principles for the measurement of the activity of 90Sr in equilibrium with 90Y, and 89Sr, pure beta-emitting radionuclides, in water samples. Different chemical separation methods are presented to produce strontium and yttrium sources, the activity of which is determined using a proportional counter (PC) or liquid scintillation counter (LSC). The selection of the test method depends on the origin of the contamination, the characteristics of the water to be analysed, therequired accuracy of test results and the available resources of the laboratories.These test methods are used for water monitoring following, past or present, accidental or routine, liquid or gaseous discharges. It also covers the monitoring of contamination caused by global fallout. When fallout occurs immediately following a nuclear accident, the contribution of 89Sr to the total amount of strontium activity is not negligible. This International Standard provides the test methods to determine the activity concentration of 90Sr in presence of 89Sr.