歡迎訪問(wèn)中科光析科學(xué)技術(shù)研究所官網(wǎng)!
免費(fèi)咨詢(xún)熱線
400-635-0567
化學(xué)試劑 硝酸鍶檢測(cè)項(xiàng)目報(bào)價(jià)???解決方案???檢測(cè)周期???樣品要求? |
點(diǎn) 擊 解 答??![]() |
本文件規(guī)定了化學(xué)試劑硝酸鍶的性狀、技術(shù)要求、試驗(yàn)方法、檢驗(yàn)規(guī)則和包裝及標(biāo)志。本文件適用于化學(xué)試劑硝酸鍶的檢驗(yàn)。
本標(biāo)準(zhǔn)規(guī)定了化學(xué)試劑硝酸鉛的性狀、規(guī)格、試驗(yàn)、檢驗(yàn)規(guī)則和包裝及標(biāo)志。本標(biāo)準(zhǔn)適用于化學(xué)試劑硝酸鉛的檢驗(yàn)。分子式:Pb(NO<下標(biāo)3>)<下標(biāo)2>相對(duì)分子質(zhì)量:331.22(根據(jù)2013年相對(duì)原子質(zhì)量)
本標(biāo)準(zhǔn)規(guī)定了輕油轉(zhuǎn)化催化劑化學(xué)成分分析方法。本標(biāo)準(zhǔn)適用于輕油轉(zhuǎn)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(zhì)量分?jǐn)?shù)的測(cè)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(cè)定方法、硝酸鹽含量的測(cè)定方法、銀鈣合量的測(cè)定方法、鐵含量的測(cè)定方法、水不溶物的測(cè)定方法、水分的測(cè)定方法、氯化物含量的測(cè)定方法、pH值的測(cè)定方法、吸濕率的測(cè)定方法、細(xì)度的測(cè)定方法。本部分適用于煙花爆竹用硝酸鋇中鋇含量的測(cè)定、硝酸鹽含量的測(cè)定、鰓鈣合量的測(cè)定、鐵含量的測(cè)定、水不溶物的測(cè)定、水分的測(cè)定、氯化物含量的測(cè)定,pH值的測(cè)定、吸濕率的測(cè)定、細(xì)度的測(cè)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.