共找到 150 條與 氟化鈉 相關的標準，共 10 頁
Method for chemical analysis of sodium fluoride - Determination of soluble sulfate content by nephelometric method
Method for the chemical analysis of crude antimony trioxide for export.Determination of fluorine content
本標準適用于氟化鈉中鐵量（以三氧化二鐵表示）的測定。測定范圍：≥0.02
Methods for chemical analysis of sodium fluoride--The 1,10-phenanthroline spectro photometric method for the determination of iron content
本部分規定了氟化鋁中氟含量的測定方法。 本部分適用于氟化鋁中氟含量的測定。測定范圍：55.0％～68.0
Determination of chemical contents and physical properties of aluminium fluoride Part 3:Determination of fluoride content distillation-thorium nitrate titration volumetric method
本標準規定了測定環境空氣中氟化物的石灰濾紙采集、氟離子選擇電極法（簡稱LTP法）。 本方法適用于環境空氣中氟化物長期平均濃度的測定
Ambient air--Determination of the fluoride--Method by lime-paper sampling and fluorine ion-selective electrode analysis
本標準規定改良 Willard–Winter 法定量天然及人造冰晶石和克分子比率（NaF∕AlF3）約在 3~1.7 間的天然及合成物質中的氟含量
Method for Determining Fluorine Content in Natural and Artificial Cryolite (Modified Willard Winter Method)
本標準規定了測定環境空氣中氟化物的濾膜采集、氟離子選擇電極法。 本標準適用于環境空氣中氟化物的小時深度和日平均濃度的測定。 當采樣體積為6m3,測定下限為0.9μg/m
Ambient air.Determination of the fluoride.Filter sampling followed by fluorine ion-selective electrode method
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 14:Determination of ammonia sulfate content in potassium bichromate and magnesium sulfate oxidation solution by potentiometric method
本部分規定了有打用電位滴定法測定鎂合金冰乙酸氧化溶液中冰乙酸[CH;COOH(60%)]含量的原 理、試劑、儀器、分析步驟和分析結果的計算。 本部分適用于鎂合金冰乙酸氧化溶液中冰乙酸含量的測定。 測量范圍: 5mL/L一25mL/L
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 7:Determination of glacial acetic acid content in glacial acetic acid oxidation solution by potentiometric method
本標準規定了用堿熔融和離子選擇電極法測定柔性石墨板氟含量的測定方法。 本標準適用于柔性石墨板氟含量的測定，測定范圍為1～1000ppm
Method for Determination of Fluorine Content in Flexible Graphite Plate
Groundwater Quality Examination Method Determination of Fluoride by Ion Selective Electrode
本標準規定以還原鉬磷酸鹽光度法定量天然及人造冰晶石及用于生產鋁之氟化鋁中之磷含量。本法亦可應用于磷（以 P2O5 表之）含量等于或大于 0.002 ％（m∕m）之產品
Method for Determining Phosphorus Content in Natural and Artificial Cryolite and Aluminium Fluoride for Industrial Use (Reduced Molybdophosphate Photometric Method)
本部分規定了采用硫酸鋇重童法測定鎂合金冰乙酸氧化溶液中硫酸銨KNH垅zs0^]含量的原瑾二、 試 劑、 儀器、 分析步驟和分析結果的計算。 本部分適用于鎂合金冰乙酸氧化溶液中硫酸銨含量的測定。 測重氾 ‥ lg/L~8g/L
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 8:Determination of ammonia sulfate content in glacial acetic acid oxidation solution by barium sulfate gravimetric method
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 11:Determination of sodium bichromate content in sodium bichromate and magnesium sulfate oxidation solution by potentiometric method
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 13:Determination of potassium bichromate、sodium bichromate content by ferrous titrimetric method
