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化學試劑 硝酸鍶檢測項目報價???解決方案???檢測周期???樣品要求? |
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本文件規(guī)定了化學試劑硝酸鍶的性狀、技術要求、試驗方法、檢驗規(guī)則和包裝及標志。本文件適用于化學試劑硝酸鍶的檢驗。
本標準規(guī)定了化學試劑硝酸鉛的性狀、規(guī)格、試驗、檢驗規(guī)則和包裝及標志。本標準適用于化學試劑硝酸鉛的檢驗。分子式:Pb(NO<下標3>)<下標2>相對分子質量:331.22(根據2013年相對原子質量)
本標準規(guī)定了輕油轉化催化劑化學成分分析方法。本標準適用于輕油轉化催化劑中氧化鎳(10 %~50 %)、三氧化二鋁(20 %~70 %)、氧化鈣(10 %~15 %)、氧化鎂(10 %~15 %)、三氧化二鐵(0.5 %~1 %)、二氧化鈦(0.5 %~1 %)、二氧化硅(0.5%~13 %)、氧化鉀(2 %~6 %)、二氧化鋯(0.3 %~1%)和燒失量質量分數的測定。
SN/T 3056的本部分規(guī)定了煙花爆竹用硝酸鋇中鋇含量的測定方法、硝酸鹽含量的測定方法、銀鈣合量的測定方法、鐵含量的測定方法、水不溶物的測定方法、水分的測定方法、氯化物含量的測定方法、pH值的測定方法、吸濕率的測定方法、細度的測定方法。本部分適用于煙花爆竹用硝酸鋇中鋇含量的測定、硝酸鹽含量的測定、鰓鈣合量的測定、鐵含量的測定、水不溶物的測定、水分的測定、氯化物含量的測定,pH值的測定、吸濕率的測定、細度的測定。
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.