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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.
UNE 30027:1953 UNE
Estado: Vigente / 1953-02-15
Densidad y composición de las soluciones acuosas puras de ácido nítrico.
UNE 30026:1952 UNE
Estado: Vigente / 1952-12-15
Densidad y composición de las soluciones acuosas de ácido clorhídrico.
ISO 3139:1976/Amd 1:1980 ISO
Estado: Published / 1980-03-01
Aqueous hydrofluoric acid for industrial use — Sampling and methods of test — Amendment 1
ISO 4285:1977 ISO
Estado: Published / 1977-12-01
Phosphoric acid for industrial use — Guide to sampling techniques
ISO 910:1977 ISO
Estado: Published / 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 3707:1976 ISO
Estado: Published / 1976-12-01
Phosphoric acid for industrial use (including foodstuffs) — Determination of calcium content — Flame atomic absorption method
ISO 904:1976 ISO
Estado: Published / 1976-11-01
Hydrochloric acid for industrial use — Determination of total acidity — Titrimetric method
ISO 3706:1976 ISO
Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method
ISO 3699:1976 ISO
Estado: Published / 1976-08-01
Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method
ISO 3360:1976 ISO
Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) — Determination of fluorine content — Alizarin complexone and lanthanum nitrate photometric method
ISO 3139:1976 ISO
Estado: Published / 1976-04-01
Aqueous hydrofluoric acid for industrial use — Sampling and methods of test
ISO 3423:1975 ISO
Estado: Published / 1975-11-01
Sulphuric acid and oleums for industrial use — Determination of sulphur dioxide content — Iodometric method
ISO 3137:1974 ISO
Estado: Published / 1974-12-01
Anhydrous hydrogen fluoride for industrial use — Sampling
ISO 2997:1974 ISO
Estado: Published / 1974-11-01
Phosphoric acid for industrial use — Determination of sulphate content — Method by reduction and titrimetry
ISO 2762:1973 ISO
Estado: Published / 1973-11-01
Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric method
ISO 7058:1983 ISO
Estado: Withdrawn / 1983-10-01
Phosphoric acid for industrial use — Determination of higher soluble sulfate contents — Titrimetric method after reduction
ISO 7099:1983 ISO
Phosphoric acid for industrial use (including foodstuffs) — Determination of hydrogen sulfide content — Titrimetric method
ISO 7100:1983 ISO
Estado: Withdrawn / 1983-06-01
Phosphoric acid for industrial use (including foodstuffs) — Determination of vanadium content — Phosphotungsten vanadate spectrometric method
ISO 6677:1983 ISO
Estado: Withdrawn / 1983-05-01
Hexafluorosilicic acid for industrial use — Determination of available fluorine content — Potentiometric method after distillation
ISO 848:1981 ISO
Estado: Withdrawn / 1981-11-01
Phosphoric acid for industrial use — Determination of calcium content — Titrimetric method
ISO 6678:1981 ISO
Estado: Withdrawn / 1981-10-01
Phosphoric acid for industrial use — Determination of lead content — Atomic absorption spectrometric method
ISO 3700:1980 ISO
Estado: Withdrawn / 1980-09-01
Anhydrous hydrogen fluoride for industrial use — Determination of water content — Conductimetric method
ISO 908:1980 ISO
Estado: Withdrawn / 1980-03-01
Hydrochloric acid for industrial use — Determination of oxidizing or reducing substances content — Titrimetric method
ISO 5792:1978 ISO
Estado: Withdrawn / 1978-08-01
Sulphuric acid for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
ISO 5785:1978 ISO
Hydrochloric acid for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
ISO 3693:1977 ISO
Estado: Withdrawn / 1977-12-01
Nitric acid for industrial use — Determination of chloride ions content — Potentiometric method
ISO 914:1977 ISO
Estado: Withdrawn / 1977-11-01
Sulphuric acid and oleum for industrial use — Determination of total nitrogen content — Titrimetric method after distillation
ISO 911:1977 ISO
Sulphuric acid for industrial use — Evaluation of sulphuric acid concentration by measurement of density
ISO 913:1977 ISO
Sulphuric acid and oleum for industrial use — Determination of ash — Gravimetric method
ISO 1980:1977 ISO
Nitric acid for industrial use — Determination of total acidity — Titrimetric method
ISO 1981:1977 ISO
Nitric acid for industrial use — Determination of nitrous compounds — Titrimetric method
ISO 1983:1977 ISO
Nitric acid for industrial use — Determination of sulphated ash — Gravimetric method
ISO 905:1976 ISO
Estado: Withdrawn / 1976-11-01
Hydrochloric acid for industrial use — Evaluation of hydrochloric acid concentration by measurement of density
ISO 906:1976 ISO
Hydrochloric acid for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
ISO 907:1976 ISO
Hydrochloric acid for industrial use — Determination of sulphated ash — Gravimetric method
ISO 3709:1976 ISO
Phosphoric acid for industrial use (including foodstuffs) — Determination of oxides of nitrogen content — 3,4- Xylenol spectrophotometric method
ISO 3708:1976 ISO
Phosphoric acid for industrial use (including foodstuffs) — Determination of chloride content — Potentiometric method
ISO 2877:1974/Amd 1:1976 ISO
Estado: Withdrawn / 1976-09-01
Sulphuric acid for industrial use — Determination of chlorides content — Potentiometric method — Amendment 1
ISO 3701:1976 ISO
Estado: Withdrawn / 1976-06-01
Anhydrous hydrogen fluoride for industrial use — Determination of hexafluorosilicic acid content — Reduced molybdosilicate photometric method
ISO 3702:1976 ISO
Anhydrous hydrogen fluoride for industrial use — Determination of sulphur dioxide content — Iodometric method
ISO 3359:1975 ISO
Estado: Withdrawn / 1975-08-01
Phosphoric acid for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
ISO 3361:1975 ISO
Estado: Withdrawn / 1975-07-01
Phosphoric acid for industrial use — Determination of soluble silica content — Reduced molybdosilicate spectrophotometric method
ISO 3328:1975 ISO
Nitric acid for industrial use — Determination of sulphate content — Method by reduction and titrimetry
ISO 3138:1974 ISO
Estado: Withdrawn / 1974-12-01
Anhydrous hydrogen fluoride for industrial use — Determination of non-volatile acid content — Titrimetric method
ISO 2990:1974 ISO
Estado: Withdrawn / 1974-04-01
Nitric acid for industrial use — Evaluation of the nitric acid concentration by measurement of density
ISO 2991:1974 ISO
Nitric acid for industrial use — Determination of ammoniacal nitrogen content — Spectrophotometric method
ISO 2899:1974 ISO
Sulphuric acid and oleums for industrial use — Determination of ammoniacal nitrogen content — Spectrophotometric method
ISO 2877:1974 ISO
Estado: Withdrawn / 1974-02-01
Sulphuric acid for industrial use — Determination of chlorides content — Potentiometric method
