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Número de resultados: 58

UNE 30028:1954  UNE

Estado: Vigente / 1954-11-15

Densidad y composición de las disoluciones acuosas puras de ácido sulfúrico.

CTN 30 INDUSTRIA QUÍMICA INORGÁNICA

UNE 30056:1968  UNE

Estado: Vigente / 1968-11-15

Acido nítrico técnico.

CTN 30 INDUSTRIA QUÍMICA INORGÁNICA

UNE 30027:1953  UNE

Estado: Vigente / 1953-02-15

Densidad y composición de las soluciones acuosas puras de ácido nítrico.

CTN 30 INDUSTRIA QUÍMICA INORGÁNICA

UNE 30026:1952  UNE

Estado: Vigente / 1952-12-15

Densidad y composición de las soluciones acuosas de ácido clorhídrico.

CTN 30 INDUSTRIA QUÍMICA INORGÁNICA

ISO 3139:1976/Amd 1:1980  ISO

Estado: Vigente / 1980-03-01

ISO 3139:1976/Amd 1:1980

ISO 4285:1977  ISO

Estado: Vigente / 1977-12-01

Phosphoric acid for industrial use -- Guide to sampling techniques

ISO 910:1977  ISO

Estado: Vigente / 1977-11-01

Sulphuric acid and oleum for industrial use -- Determination of total acidity, and calculation of free sulphur trioxide content of oleum -- Titrimetric method

ISO 904:1976  ISO

Estado: Vigente / 1976-11-01

Hydrochloric acid for industrial use -- Determination of total acidity -- Titrimetric method

ISO 3699:1976  ISO

Estado: Vigente / 1976-08-01

Anhydrous hydrogen fluoride for industrial use -- Determination of water content -- Karl Fischer method

ISO 3139:1976  ISO

Estado: Vigente / 1976-04-01

Aqueous hydrofluoric acid for industrial use -- Sampling and methods of test

ISO 3423:1975  ISO

Estado: Vigente / 1975-11-01

Sulphuric acid and oleums for industrial use -- Determination of sulphur dioxide content -- Iodometric method

ISO 3137:1974  ISO

Estado: Vigente / 1974-12-01

Anhydrous hydrogen fluoride for industrial use -- Sampling

ISO 2997:1974  ISO

Estado: Vigente / 1974-11-01

Phosphoric acid for industrial use -- Determination of sulphate content -- Method by reduction and titrimetry

ISO 2762:1973  ISO

Estado: Vigente / 1973-11-01

Hydrochloric acid for industrial use -- Determination of soluble sulphates -- Turbidimetric method

ISO 3707:1976  ISO

Estado: Vigente / 1976-12-01

Phosphoric acid for industrial use (including foodstuffs) -- Determination of calcium content -- Flame atomic absorption method

ISO 3706:1976  ISO

Estado: Vigente / 1976-11-01

Phosphoric acid for industrial use (including foodstuffs) -- Determination of total phosphorus (V) oxide content -- Quinoline phosphomolybdate gravimetric method

ISO 3360:1976  ISO

Estado: Vigente / 1976-08-01

Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) -- Determination of fluorine content -- Alizarin complexone and lanthanum nitrate photometric method

ISO 914:1977  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid and oleum for industrial use -- Determination of total nitrogen content -- Titrimetric method after distillation

ISO/R 915:1968  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid and oleum for industrial use -- Determination of iron content -- 2,2'- Bipyridyl spectrophotometric method

ISO 848:1981  ISO

Estado: Anulada / 2002-05-27

Phosphoric acid for industrial use -- Determination of calcium content -- Titrimetric method

ISO/R 849:1968  ISO

Estado: Anulada / 2002-05-27

Phosphoric acid for industrial use -- Determination of iron content -- 2,2'- Bipyridyl spectrophotometric method

ISO 905:1976  ISO

Estado: Anulada / 2002-05-27

Hydrochloric acid for industrial use -- Evaluation of hydrochloric acid concentration by measurement of density

ISO 906:1976  ISO

Estado: Anulada / 2002-05-27

Hydrochloric acid for industrial use -- Determination of sulphate content -- Barium sulphate gravimetric method

ISO 907:1976  ISO

Estado: Anulada / 2002-05-27

Hydrochloric acid for industrial use -- Determination of sulphated ash -- Gravimetric method

ISO 908:1980  ISO

Estado: Anulada / 2002-05-27

Hydrochloric acid for industrial use -- Determination of oxidizing or reducing substances content -- Titrimetric method

ISO 911:1977  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid for industrial use -- Evaluation of sulphuric acid concentration by measurement of density

ISO 913:1977  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid and oleum for industrial use -- Determination of ash -- Gravimetric method

ISO 2363:1972  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid and oleums for industrial use -- Determination of oxides of nitrogen -- 2,4- Xylenol spectrophotometric method

ISO 1914:1972  ISO

Estado: Anulada / 2002-05-27

Boric acid for industrial use -- Determination of boric acid content -- Volumetric method

ISO 1980:1977  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Determination of total acidity -- Titrimetric method

ISO 1981:1977  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Determination of nitrous compounds -- Titrimetric method

ISO/R 1982:1971  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Determination of iron content -- 2,2'- Bipyridyl photometric method

ISO 1983:1977  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Determination of sulphated ash -- Gravimetric method

ISO 2899:1974  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid and oleums for industrial use -- Determination of ammoniacal nitrogen content -- Spectrophotometric method

ISO 3138:1974  ISO

Estado: Anulada / 2002-05-27

Anhydrous hydrogen fluoride for industrial use -- Determination of non-volatile acid content -- Titrimetric method

ISO 2990:1974  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Evaluation of the nitric acid concentration by measurement of density

ISO 2991:1974  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Determination of ammoniacal nitrogen content -- Spectrophotometric method

ISO 2877:1974  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid for industrial use -- Determination of chlorides content -- Potentiometric method

ISO 2877:1974/Amd 1:1976  ISO

Estado: Anulada / 2002-05-27

ISO 2877:1974/Amd 1:1976

ISO 3700:1980  ISO

Estado: Anulada / 2002-05-27

Anhydrous hydrogen fluoride for industrial use -- Determination of water content -- Conductimetric method

ISO 3693:1977  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Determination of chloride ions content -- Potentiometric method

ISO 3359:1975  ISO

Estado: Anulada / 2002-05-27

Phosphoric acid for industrial use -- Determination of arsenic content -- Silver diethyldithiocarbamate photometric method

ISO 3361:1975  ISO

Estado: Anulada / 2002-05-27

Phosphoric acid for industrial use -- Determination of soluble silica content -- Reduced molybdosilicate spectrophotometric method

ISO 3328:1975  ISO

Estado: Anulada / 2002-05-27

Nitric acid for industrial use -- Determination of sulphate content -- Method by reduction and titrimetry

ISO 2717:1973  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid and oleum for industrial use -- Determination of lead content -- Dithizone photometric method

ISO 3701:1976  ISO

Estado: Anulada / 2002-05-27

Anhydrous hydrogen fluoride for industrial use -- Determination of hexafluorosilicic acid content -- Reduced molybdosilicate photometric method

ISO 3702:1976  ISO

Estado: Anulada / 2002-05-27

Anhydrous hydrogen fluoride for industrial use -- Determination of sulphur dioxide content -- Iodometric method

ISO 5792:1978  ISO

Estado: Anulada / 2002-05-27

Sulphuric acid for industrial use -- Determination of arsenic content -- Silver diethyldithiocarbamate photometric method

ISO 5785:1978  ISO

Estado: Anulada / 2002-05-27

Hydrochloric acid for industrial use -- Determination of arsenic content -- Silver diethyldithiocarbamate photometric method

ISO 7058:1983  ISO

Estado: Anulada / 2002-05-27

Phosphoric acid for industrial use -- Determination of higher soluble sulfate contents -- Titrimetric method after reduction

Número de resultados: 58

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