標(biāo)準(zhǔn)號(hào) |
中文名稱 |
英文名稱 |
| NF T20-281-1968 |
硝酸的化學(xué)分析.總酸度的測定 |
CHEMICAL ANALYSIS OF NITRIC ACID. DETERMINATION OF TOTAL ACIDITY. |
| NF T20-283-1968 |
硝酸的化學(xué)分析.硝化物的測定 |
CHEMICAL ANALYSIS OF NITRIC ACID. DETERMINATION OF NITROUS COMPOUNDS. |
| NF T20-284-1970 |
硝酸的化學(xué)分析.氯的電位滴定法 |
CHEMICAL ANALYSIS OF NITRIC ACID. POTENTIOMETRIC DETERMINATION OF CHLORIDES. |
| NF T20-285-1970 |
硝酸的化學(xué)分析.氯的濁度計(jì)測定 |
(CHEMICAL ANALYSIS OF NITRIC ACID. TURBIDIMETRIC DETERMINATION OF CHLORIDES.) |
| NF T20-286-1982 |
化學(xué)產(chǎn)品.工業(yè)硝酸.氨氮含量的測定 |
(NITRIC ACID FOR INDUSTRIAL USE. DETERMINATION OF AMMONIACAL NITROGEN CONTENT. SPECTROPHOTOMETRIC METHOD.) |
| NF T20-287-1982 |
化學(xué)產(chǎn)品.工業(yè)硝酸.硫酸鹽含量的測定.還原法和滴定法 |
(NITRIC ACID FOR INDUSTRIAL USE. DETERMINATION OF SULPHATE CONTENT. METHOD BY REDUCTION AND TITRIMETRY.) |
| NF T20-291-1982 |
化學(xué)產(chǎn)品.工業(yè)用硫酸和發(fā)煙硫酸.發(fā)煙硫酸中游離三氧化硫成分的計(jì)算和總酸度的測定.滴定法 |
(Sulphuric acid and oleum for industrial use. Determination of total acidity, and calculation of free sulphur trioxide content of oleum. Titrimetric method.) |
| NF T20-292-1968 |
硫酸和發(fā)煙硫酸的化學(xué)分析.熔燒殘留物的測定 |
(CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF ASH.) |
| NF T20-293-1970 |
硫酸和發(fā)煙硫酸的化學(xué)分析.二氧化硫的測定 |
(SULFURIC ACID AND OLEUMS FOR INDUSTRIAL USE. DETERMINATION OF SULPHUR DIOXYDE CONTENT.) |
| NF T20-294-1982 |
化學(xué)產(chǎn)品.工業(yè)硫酸.氯含量的測定.電位滴定法 |
(Sulphuric acid for industrial use. Determination of chlorides content. Potentiometric method.) |
| NF T20-295-1968 |
硫酸和發(fā)煙硫酸的化學(xué)分析.總氮量的測定 |
(CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF TOTAL NITROGEN.) |
| NF T20-296-1970 |
硫酸和發(fā)煙硫酸的化學(xué)分析.硝態(tài)氮的測定 |
(CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUMS. DETERMINATION OF NITROUS NITROGEN AND NITRIC NITROGEN.) |
| NF T20-297-1971 |
硫酸和發(fā)煙硫酸的化學(xué)分析.氨氮的測定 |
CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF AMMONIACAL NITROGEN. SPECTROPHOTOMETRIC METHOD. |
| NF T20-298-1982 |
化學(xué)產(chǎn)品.工業(yè)硫酸和發(fā)煙硫酸.砷含量的測定.二乙基二硫代氨基甲酸銀光度法 |
SULPHURIC ACID FOR INDUSTRIAL USE. DETERMINATION OF ARSENIC CONTENT. SILVER DIETHYLDITHIOCARBAMATE PHOTOMETRIC METHOD. |
| NF T20-331-1984 |
工業(yè)脫水氟化氫.試驗(yàn)方法 |
ANHYDROUS HYDROGEN FLUORIDE FOR INDUSTRIAL USE. METHODS OF TEST. |
| NF T20-337-1984 |
工業(yè)用含水氫氟酸.取樣和試驗(yàn)方法 |
Aqueous hydrofluoric acid for industrial use. Sampling and methods of test. |
| NF T20-341-1986 |
工業(yè)氨水.試驗(yàn)方法 |
Ammoniac solution for industrial use. Test methods. |
| NF T20-342-1986 |
工業(yè)液化氨.試驗(yàn)方法 |
Liquefied anhydrous ammoniac industrial use. Test methods. |
| NF T20-351-1978 |
工業(yè)或農(nóng)業(yè)用氯化鉀.濕度的測定.重量法 |
POTASSIUM CHLORIDE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF MOISTURE CONTENT.GRAVIMETRIC METHOD. |
| NF T20-352-1978 |
工業(yè)或農(nóng)業(yè)用氯化鉀.鉀含量的測定.火焰發(fā)射分光光度法 |
POTASSIUM CHLORIDE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT.FLAME EMISSION SPECTROPHOTOMETRIC METHOD. |
| NF T20-353-1978 |
工業(yè)氯化鉀.不溶于水的物質(zhì)的測定 |
POTASSIUM CHLORIDE FOR INDUSTRIAL USE.DETERMINATION OF WATER INSOLUBLE MATTER. |
| NF T20-354-1978 |
工業(yè)氯化鉀.氯含量的測定.汞量滴定法 |
POTASSIUM CHLORIDE FOR INDUSTRIAL USE.DETERMINATION OF CHLORIDE CONTENT.MERCURIMETRIC METHOD. |
| NF T20-355-1978 |
工業(yè)氯化鉀.鈉含量的測定.火焰發(fā)射分光光度法 |
POTASSIUM CHLORIDE FOR INDUSTRIAL USE.DETERMINATION OF SODIUM CONTENT.FLAME EMISSION SPECTROPHOTOMETRIC METHOD). |
| NF T20-356-1978 |
工業(yè)或農(nóng)業(yè)用氯化鉀.鉀含量的測定.四苯基硼酸鉀重量法 |
POTASSIUM CHLORIDE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT.POTASSIUM TETRAPHENYLBORATE GRAVIMETRIC METHOD. |
| NF T20-359-1978 |
工業(yè)或農(nóng)業(yè)用氯化鉀.鉀含量的測定.四苯基硼酸鈉滴定法 |
POTASSIUM CHLORIDE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT.SODIUM TETRAPHENYLBORATE TITRIMETRIC METHOD. |
| NF T20-361-1978 |
工業(yè)或農(nóng)業(yè)用硫酸鉀.105℃時(shí)質(zhì)量損失的測定 |
POTASSIUM SULPHATE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF LOSS OF MASS A 105 DEGREES C. |
| NF T20-362-1978 |
工業(yè)或農(nóng)業(yè)用硫酸鉀.鉀含量的測定.火焰發(fā)射分光光度法 |
POTASSIUM SULPHATE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT.FLAME EMISSION SPECTROPHOTOMETRIC METHOD. |
| NF T20-363-1978 |
工業(yè)或農(nóng)業(yè)用硫酸鉀.甲基橙酸度的測定 |
POTASSIUM SULPHATE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF ACIDITY TO METHYL ORANGE. |
| NF T20-364-1978 |
工業(yè)或農(nóng)業(yè)用硫酸鉀.硫酸鹽含量的測定.鋇酸鹽重量法 |
POTASSIUM SULPHATE FOR INDUSTRIAL USE.DETERMINATION OF SULPHATE CONTENT.BARYUM SULPHATE GRAVIMETRIC METHOD. |
| NF T20-365-1978 |
工業(yè)硫酸鉀.氯含量的測定.汞量滴定法 |
POTASSIUM SULPHATE FOR INDUSTRIAL USE.DETERMINATION OF CHLORIDE CONTENT.MERCURIMETRIC METHOD. |
| NF T20-366-1978 |
工業(yè)或農(nóng)業(yè)用硫酸鉀.鉀含量的測定.四苯基硼酸鉀重量法 |
POTASSIUM SULPHATE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT.GRAVIMETRIC METHOD AS POTASSIUM TETRAPHENYLBORATE. |
| NF T20-367-1978 |
工業(yè)或農(nóng)業(yè)用硫酸鉀.鉀含量的測定.四苯基硼酸鈉容量計(jì)法 |
POTASSIUM SULPHATE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT.SODIUM TETRAPHENYLBORATE VOLUMETRIC METHOD. |
| NF T20-371-1977 |
工業(yè)氫氧化鉀.取樣.試驗(yàn)取樣.測定某些成分用主要溶液的制備 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. SAMPLING. TEST SAMPLE. PREPARATION OF THE MAIN SOLUTION FOR CARRYING OUT CERTAIN DETERMINATIONS. |
| NF T20-372-1969 |
氫氧化鉀的化學(xué)分析.鉀含量的測定.（火焰光度法） |
CHEMICAL ANALYSIS OF POTASSIUM HYDROXIDE. DETERMINATION OF POTASSIUM (FLAME PHOTOMETRY METHOD). |
| NF T20-373-1977 |
工業(yè)氫氧化鉀.鐵含量的測定.１，１０－菲繞啉光度法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF IRON CONTENT. 1,10-PHENANTHROLINE PHOTOMETRIC METHOD. |
| NF T20-374-1977 |
工業(yè)氫氧化鉀.氯含量的測定.汞量滴定法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDES CONTENT. MERCURIMETRIC METHOD. |
| NF T20-375-1977 |
工業(yè)氫氧化鉀.氯含量的測定.光度法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDES CONTENT. PHOTOMETRIC METHOD. |
| NF T20-376-1969 |
氫氧化鉀的化學(xué)分析.鉀含量的重量法 |
CHEMICAL ANALYSIS OF POTASSIUM HYDROXIDE. GRAVIMETRIC DETERMINATION OF POTASSIUM. |
| NF T20-377-1977 |
工業(yè)氫氧化鉀.鈉含量的測定.火焰發(fā)射分光光度法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM CONTENT. FLAME EMISSION SPECTROPHOTOMETRIC METHOD. |
| NF T20-378-1977 |
工業(yè)氫氧化鉀.二氧化碳含量的測定.滴定法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF CARBON DIOXIDE CONTENT. TITRIMETRIC METHOD. |
| NF T20-379-1969 |
氫氧化鉀的化學(xué)分析.鉀含量的容量分析法 |
CHEMICAL ANALYSIS OF POTASSIUM HYDROXIDE. VOLUMETRIC DETERMINATION OF POTASSIUM. |
| NF T20-380-1977 |
工業(yè)氫氧化鉀.溶液濃度的測定 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. METHOD OF ASSAY. |
| NF T20-381-1977 |
工業(yè)氫氧化鉀.碳酸鹽含量的測定.氣體定量分析法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF CARBONATES CONTENT. GAS-VOLUMETRIC METHOD. |
| NF T20-382-1977 |
工業(yè)氫氧化鉀.硫酸鹽含量的測定.硫酸鋇的重量法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF SULPHATE CONTENT. BARYUM SULPHATE GRAVIMETRIC METHOD. |
| NF T20-383-1977 |
工業(yè)氫氧化鉀.二氧化硅含量的測定.還原硅鋇酸鹽光度法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF SILICA CONTENT. REDUCED MOLYBDOSILICATE PHOTOMETRIC METHOD. |
| NF T20-384-1977 |
工業(yè)氫氧化鉀.二氧化硅含量的測定.喹啉硅鉬酸鹽沉淀重量法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF SILICA CONTENT. GRAVIMETRIC METHOD BY PRECIPITATION OF QUINOLINE MOLYBDOSILICATE. |
| NF T20-385-1977 |
工業(yè)氫氧化鉀.鈣含量的測定.ＥＤＴＡ綜合分析法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM CONTENT. EDTA (DISODIUM SALT) COMPLEXOMETRIC METHOD. |
| NF T20-386-1977 |
工業(yè)氫氧化鉀.鈣和鎂含量的測定.火焰原子吸收分光光度法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM AND MAGNESIUM CONTENTS. FLAME ATOMIC ABSORPTION METHOD. |
| NF T20-387-1977 |
工業(yè)氫氧化鉀.硫化物含量的測定.還原法和滴定法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF SULPHUR COMPOUNDS. METHOD BY REDUCTION AND TITRIMETRY. |
| NF T20-388-1977 |
工業(yè)氫氧化鉀.鈉含量的測定.醋酸鈾和醋酸鎂重量法 |
POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM. GRAVIMETRIC METHOD USING URANYL ACETATE AND MAGNESIUM ACETATE. |
| NF T20-401-1971 |
工業(yè)氯化鈉.１１０℃時(shí)質(zhì)量損失的測定 |
SODIUM CHLORIDE FOR INDUSTRIAL USE. DETERMINATION OF THE LOSS OF MASS AT 110 DEGREES C. |
| NF T20-402-1982 |
工業(yè)氯化鈉.不溶于水或不溶于酸的物質(zhì)的測定和含量測定用幾種主要溶液的制備 |
Sodium chloride for industrial use. Determination of matter insoluble in water or in acid and preparation of principal solutions for other determination. |
| NF T20-403-1971 |
工業(yè)氯化鈉.氯含量的測定.（汞量滴定法） |
SODIUM CHLORIDE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDES. (MERCURIMETRIC METHOD). |
| NF T20-405-1982 |
工業(yè)氯化鈉.硫酸鹽含量的測定.硫酸鋇重量法 |
Sodium chloride for industrial use. Determination of sulphate content. Barium sulphate gravimetric method. |
| NF T20-406-1971 |
工業(yè)氯化鈉.鈣和鎂的測定.（乙二胺四醋酸綜合分析法.） |
SODIUM CHLORIDE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM AND MAGNESIUM. (EDTA COMPLEXOMETRIC METHOD). |
| NF T20-407-1971 |
工業(yè)氯化鈉.鈣和鎂的測定.（電流計(jì)方法） |
SODIUM CHLORIDE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM AND MAGNESIUM. (AMPEROMETRIC METHOD). |
| NF T20-408-1971 |
工業(yè)氯化鈉. 的測定.（容量法） |
SODIUM CHLORIDE FOR INDUSTRIAL USE. DETERMINATION OF BROMINE. |
| NF T20-412-1975 |
工業(yè)碳酸鈉.250℃非揮發(fā)性物質(zhì)和質(zhì)量損失的測定 |
SODIUM CARBONATE FOR INDUSTRIAL USE - DETERMINATION OF LOSS OF MASSAND OF NON-VOLATILE MATTER AT 250 C |
| NF T20-413-1975 |
工業(yè)碳酸鈉.５０℃時(shí)不溶于水的物質(zhì)的測定 |
SODIUM CARBONATE FOR INDUSTRIAL USE - DETERMINATION OF MATTER INSOLUBLE IN WATER AT 50 DEGRES C |
| NF T20-414-1975 |
工業(yè)碳酸鈉.可溶解堿總含量的測定.容量法 |
SODIUM CARBONATE FOR INDUSTRIAL USE - DETERMINATION OF TOTAL SOLUBLE ALKALINITY - VOLUMETRIC METHOD |
| NF T20-415-1975 |
工業(yè)碳酸鈉.碳酸氫鈉含量的測定.容量法 |
(SODIUM CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM HYDROGEN CARBONATE. VOLUMETRIC METHOD.) |
| NF T20-416-1975 |
工業(yè)碳酸鈉.氯含量的測定.汞液滴定法 |
(SODIUM CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDE CONTENT. MERCURIMETRIC METHOD.) |
| NF T20-417-1975 |
工業(yè)碳酸鈉.硫酸鹽含量的測定.硫酸鋇重量法 |
(SODIUM CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF SULPHATE CONTENT. BARIUM SULPHATE GRAVIMETRIC METHOD.) |
| NF T20-418-1975 |
工業(yè)碳酸鈉.鐵含量的測定.１，１０－菲繞啉光度分析法 |
(SODIUM CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF IRON CONTENT. 1,10 - PHENANTHROLINE PHOTOMETRIC METHOD.) |
| NF T20-421-1976 |
工業(yè)氫氧化鈉.取樣.試樣.按給定配量的主要溶液的制備 |
(SODIUM HYDROXYDE FOR INDUSTRIAL USE. SAMPLING. TEST SAMPLE. PREPARATION OF THE MAIN SOLUTION FOR CARRYING OUT CERTAIN DETERMINATIONS.) |
| NF T20-422-1976 |
工業(yè)氫氧化鈉.滴定度的測定 |
(SODIUM HYDROXYDE FOR INDUSTRIAL USE. METHOD OF ASSAY.) |
| NF T20-423-1976 |
工業(yè)氫氧化鈉.鐵含量的測定.１，１０－菲繞啉光度分析法 |
(SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF IRON CONTENT. 1,10 PHENANTHROLINE PHOTOMETRIC METHOD.) |
| NF T20-424-1976 |
工業(yè)氫氧化鈉.二氧化硅含量的測定.還原鉬酸絡(luò)合物分光光度法 |
(SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF SILICA CONTENT. REDUCED SILICOMOLYBDIC COMPLEX PHOTOMETRIC METHOD.) |
| NF T20-425-1976 |
工業(yè)氫氧化鈉.二氧化硅含量的測定.喹啉鉬硅酸鹽絡(luò)合物沉淀重量分析法 |
(SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF SILICA CONTENT. GRAVIMETRIC METHOD BY PRECIPITATION OF QUINOLEINE MOLYBDOSILICATE.) |
| NF T20-426-1976 |
工業(yè)氫氧化鈉.碳酸鹽的測定.滴定法 |
(SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF CARBONATES CONTENT. TITRIMETRIC METHOD.) |
| NF T20-427-1976 |
工業(yè)氫氧化鈉.碳酸鹽的測定.氣體定量法 |
(SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF CARBONATES CONTENT. GAS VOLUMETRIC METHOD.) |
| NF T20-428-1976 |
工業(yè)氫氧化鈉.硫化物含量的測定.還原法和滴定法 |
SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF SULPHUR COMPOUNDS. METHOD BY REDUCTION AND TITRIMETRY. |
| NF T20-429-1976 |
工業(yè)氫氧化鈉.硫酸鋇重量法 |
SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF SULPHATE CONTENT. BARIUM SULPHATE GRAVIMETRIC METHOD. |
| NF T20-430-1976 |
工業(yè)氫氧化鈉.氯化物含量的測定.光度法 |
SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDES CONTENT. PHOTOMETRIC METHOD. |
| NF T20-431-1976 |
工業(yè)氫氧化鈉.氯化物含量的測定.汞量法 |
SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDES CONTENT. MERCURIMETRIC METHOD. |
| NF T20-432-1976 |
工業(yè)氫氧化鈉.鈣和鎂含量的測定.火焰原子吸收法 |
SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM AND MAGNESIUM CONTENTS. FLAME ATOMIC ABSORPTION METHOD. |
| NF T20-433-1976 |
工業(yè)氫氧化鈉.鈣含量的測定.EDTA綜合法 |
SODIUM HYDROXYDE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM CONTENT. EDTA COMPLEXOMETRIC METHOD. |
| NF T20-434-1980 |
工業(yè)氫氧化鈉.汞含量的測定.雙硫 光度法 |
SODIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF MERCURY CONTENT. DITHIZONE PHOTOMETRIC METHOD. |
| NF T20-435-1980 |
工業(yè)氫氧化鈉.汞含量的測定.無火焰原子吸收分光光度法 |
SODIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF MERCURY CONTENT. FLAMELESS ATOMIC ABSORPTION SPECTROMETRIC METHOD. |
| NF T20-441-1976 |
工業(yè)碳酸氫鈉.碳酸鈉含量的測定.電位滴定法 |
SODIUM HYDROGEN CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM CARBONATE CONTENT. POTENTIOMETRIC METHOD. |
| NF T20-442-1976 |
工業(yè)碳酸氫鈉.碳酸鈉含量的測定.滴定法 |
SODIUM HYDROGEN CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM CARBONATE CONTENT. TITRIMETRIC METHOD. |
| NF T20-443-1976 |
工業(yè)碳酸氫鈉.碳酸氫鈉含量的測定.滴定法 |
SODIUM HYDROGEN CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM HYDROGEN CARBONATE. TITRIMETRIC METHOD. |
| NF T20-444-1976 |
工業(yè)碳酸氫鈉.水分的測定.重量法 |
SODIUM HYDROGEN CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF MOISTURE. GRAVIMETRIC METHOD. |
| NF T20-445-1976 |
工業(yè)碳酸氫鈉.氯化物含量的測定.汞量滴定法 |
SODIUM HYDROGEN CARBONATE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDE CONTENT. MERCURIMETRIC METHOD. |
| NF T20-446-1976 |
工業(yè)碳酸氫鈉.鐵含量的測定：１，１０－菲繞啉光度法 |
SODIUM HYDROGEN CARBONAT FOR INDUSTRIAL USE. DETERMINATION OF IRON CONTENT 1,10 PHENANTHROLINE PHOTOMETRIC METHOD. |
| NF T20-451-1976 |
工業(yè)硫酸鈉.１００℃時(shí)質(zhì)量損失的測定 |
SODIUM SULPHATE FOR INDUSTRIAL USE DETERMINATION OF LOSS IN MASS AT 110 DEGREES C. |
| NF T20-452-1976 |
工業(yè)硫酸鈉.不溶于酸的物質(zhì)的測定 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF ACID-INSOLUBLE MATTER. |
| NF T20-453-1976 |
工業(yè)硫酸鈉.氯化物含量的測定.汞液滴定法 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF CHLORIDES CONTENT. MERCURIMETRIC METHOD. |
| NF T20-454-1976 |
工業(yè)硫酸鈉.硫酸鹽含量的測定.計(jì)算法和硫酸鋇重量法 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF SULPHATE CONTENT. CALCULATION METHOD AND BARIUM SULPHATE GRAVIMETRIC METHOD. |
| NF T20-455-1976 |
工業(yè)硫酸鈉.鈣含量的測定.ＥＤＴＡ綜合法 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM CONTENT. EDTA COMPLEXOMETRIC METHOD. |
| NF T20-456-1976 |
工業(yè)硫酸鈉.鐵含量的測定.１，１０－菲繞啉光度法 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF IRON CONTENT. 1,10 PHENANTHROLINE PHOTOMETRIC METHOD. |
| NF T20-457-1976 |
工業(yè)硫酸鈉.酸度或堿度的測定 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF ACIDITY OR ALKALINITY. |
| NF T20-458-1976 |
工業(yè)硫酸鈉.ＰＨ值的測定.電位計(jì)法 |
SODIUM SULPHATE FOR INDUSTRIAL USE. MEASUREMENT OF PH. POTENTIOMETRIC METHOD. |
| NF T20-459-1980 |
工業(yè)硫酸鈉.硫酸鈉含量的測定.重量法 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM SULPHATE CONTENT. GRAVIMETRIC METHOD. |
| NF T20-460-1980 |
工業(yè)硫酸鈉.鈣含量的測定.原子吸收分光光度法 |
SODIUM SULPHATE FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM CONTENT FLAME ATOMIC ABSORPTION SPECTROMETRIC METHOD. |
| NF T20-467-1984 |
工業(yè)磷酸.（包括食品工業(yè)）.釩的含量的測定 |
Methanol for industrial use. Methods of test. |
| NF T20-468-1984 |
工業(yè)磷酸.（包括食品工業(yè)）.硫化氫含量的測定.滴定法 |
Phosphoric acid for industrial use (including foodstuffs). Determination of hydrogen sulfide content. Titrimetric method. |
| NF T20-469-1984 |
工業(yè)磷酸.高含量可溶硫酸鹽的測定.先還原后滴定的方法 |
PHOSPHORIC ACID FOR INDUSTRIAL USE. DETERMINATION OF HIGHER SOLUBLE SULFATE CONTENTS. TITRIMETRIC METHOD AFTER REDUCTION. |
| NF T20-470-1979 |
工業(yè)磷酸.取樣技術(shù)指南 |
PHOSPHORIC ACID FOR INDUSTRIAL USE. GUIDE TO SAMPLING TECHNIQUES. |
| NF T20-471-1973 |
工業(yè)磷酸.硫酸鹽含量的測定.先還原后滴定的方法 |
PHOSPHORIC ACID FOR INDUSTRIAL USE. DETERMINATION OF SULPHATES. TITRIMETRIC METHOD AFTER REDUCTION. |
| NF T20-472-1973 |
工業(yè)磷酸.鈣含量的測定.容量法 |
PHOSPHORIC ACID FOR INDUSTRIAL USE. DETERMINATION OF CALCIUM. VOLUMETRIC METHOD. |
| NF T20-473-1973 |
工業(yè)磷酸.鐵的測定.２，２＇雙 啶分光光度法 |
PHOSPHORIC ACID FOR INDUSTRIAL USE. DETERMINATION OF IRON. (2.2`BIPYRIDYL SPECTROPHOTOMETRIC METHOD). |
| NF T20-474-1973 |
工業(yè)磷酸.二氧化硅含量的測定.還原鉬硅絡(luò)合物分光光度法 |
PHOSPHORIC ACID FOR INDUSTRIAL USE. DETERMINATION OF SILICA CONTENT. SPECTROPHOTOMETRIC METHOD USING THE REDUCED SILICOMOLYBDIC COMPLEX. |
| NF T20-475-1973 |
工業(yè)磷酸.根據(jù)NF T20-054方法測定砷含量 |
PHOSPHORIC ACID FOR INDUSTRIAL USE; DETERMINATION FOR ARSENIC CONTENT; SILVER DIETHYLDITHIOCARBAMATE PHOTOMETRIC METHOD. |
| NF T20-476-1973 |
工業(yè)磷酸.五氧化二磷總含量的測定.喹啉磷鉬酸重量法 |
Phosphoric acid for industrial use. Determination of total phosphoric pentoxide content. Gravimetric method using quinoline phosphomolybdate. |
| NF T20-477-1982 |
工業(yè)磷酸.鉛含量的測定.原子吸收分光光度法 |
PHOSPHORIC ACID FOR INDUSTRIAL USE. DETERMINATION OF LEAD CONTENT. ATOMIC ABSORPTION SPECTROMETRIC METHOD. |
| NF T20-479-1973 |
工業(yè)磷酸和磷酸鈉.氟含量的測定（氨甲基－３茜素－Ｎ，Ｎ－二醋酸光度法） |
PHOSPHORIC ACID AND SODIUM PHOSPHATES FOR INDUSTRIAL USE ; DETERMINATION OF FLUORINE CONTENT ; PHOTOMETRIC METHOD. |
| NF T20-480-1979 |
工業(yè)磷酸（包括食品工業(yè)）.鈣含量的測定.火焰原子吸收法 |
Phosphoric acid for industrial use (including foodstuffs). Determination of calcium content. Flame atomic absorption method. |
| NF T20-481-1979 |
工業(yè)磷酸（包括食品工業(yè)）.氯化物含量的測定.電位滴定法 |
Phosphoric acid for industrial use (including foodstuffs). Determination of chloride content. Potentiometric method. |
| NF T20-482-1979 |
工業(yè)磷酸（包括食品工業(yè)）.氧化氮含量的測定.二甲苯酚３，４分光光度法 |
Phosphoric acid for industrial use (including foodstuffs. Determination of oxides of nitrogen content ). 3,4-xylenol spectrophotometric method. |
| NF T20-483-1973 |
工業(yè)三聚磷酸鈉和焦磷酸鈉.鐵含量的測定.２，２－雙 啶分光光度法 |
SODIUM TRIPOLYPHOSPHATE AND PYROPHOSPHATE ; DETERMINATION OF IRONCONTENT ; 2,2`-BIPYRIDYL SPECTROPHOTOMETRIC METHOD. |
| NF T20-484-1973 |
工業(yè)三聚磷酸鈉和焦磷酸鈉.燃燒消耗的測定 |
SODIUM TRIPOLYPHOSPHATE AND PYROPHOSPHATE FOR INDUSTRIAL USE. DETERMINATION OF LOSS ON IGNITION. |
| NF T20-485-1973 |
工業(yè)三聚磷酸鈉和焦磷酸鈉.機(jī)械篩后的粒度分析 |
SODIUM TRIPOLYPHOSPHATE AND PYROPHOSPHATE FOR INDUSTRIAL USE. GRANULOMETRIC ANALYSIS BY MECHANICAL SIEVING. |
| NF T20-486-1973 |
工業(yè)三聚磷酸鈉和焦磷酸鈉.五氧化二磷總含量的測定.（喹啉磷鉬酸鹽的重量法） |
(SODIUM TRIPOLYPHOSPHATE AND PYROPHOSPHATE FOR INDUSTRIAL USE ; DETERMINATION OF TOTAL PHOSPHORIC PENTOXIDE ; GRAVIMETRIC METHOD USING QUINOLINE PHOSPHOMOLYBDATE.) |
| NF T20-487-1979 |
工業(yè)用三聚磷酸鈉和焦磷酸鈉.正磷酸鹽的測定.還原鉬磷酸鹽光度法 |
(SODIUM TRIPOLYPHOSPHATE AND PYROPHOSPHATE FOR INDUSTRIAL USE ; DETERMINATION OF ORTHOPHOSPHATE; PHOTOMETRIC METHOD USING REDUCED PHOSPHOMOLYBDIC COMPLEX.) |
| NF T20-491-1979 |
工業(yè)用焦磷酸鈉.焦磷酸鹽的估定.電位滴定法 |
(SODIUM PYROPHOSPHATE FOR INDUSTRIAL USE.ESTIMATION OF PYROPHOSPHATE CONTENT. POTENTIOMETRIC METHOD.) |
| NF T20-492-1973 |
工褿等姿崮三磷酸鈉含量的測定.鈷一三乙撐二胺氯化物的重量法 |
(SODIUM TRIPOLYPHOSPHATE FOR INDUSTRIAL USE. ESTIMATION OF TRIPOLYPHOSPHATES CONTENT. COBALT TRIETHYLENEDIAMINE CHLORIDE GRAVIMETRIC METHOD.) |
| NF T20-493-1973 |
工業(yè)三磷酸鈉.水不溶物質(zhì)的測定 |
(SODIUM TRIPOLYPHOSPHATE FOR INDUSTRIAL USE. DETERMINATION OF MATTER INSOLUBLE IN WATER.) |
| NF T20-494-1973 |
工業(yè)三磷酸鈉.pH值的測定.電位滴定法 |
(SODIUM TRIPOLYPHOSPHATE FOR INDUSTRIAL USE. MEASUREMENT OF PH. POTENTIOMETRIC METHOD.) |
| NF T20-495-1973 |
工業(yè)三磷酸鈉.氯化物含量的測定 |
(SODIUM TRIPOLYPHOSPHATE FOR INDUSTRIAL USE. DETERMINATION OF SODIOM CHLORIDE CONTENT.) |
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