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| Название (рус.): | Лаки и краски. Определение содержания растворимого металла. Часть 5. Определение содержания шестивалентного хрома в пигменте и наполнителе краски спектрофотометрическим методом с применением дифенилкарбазида |
| Название (англ.): | Paints and varnishes; Determination of 'soluble' metal content; Part 5 : Determination of hexavalent chromium content of the pigment portion of the liquid paint or the paint in powder form; Diphenylcarbazide spectrophotometric method |
| Описание (англ.): | The principle consists in formation of a coloured complex from hexavalent chromium and diphenylcarbazide solution. After addition of orthophosphoric acid and sulfuric acid, spectralphotometric easurement of the colour at a wavelength in the region of 540 nm. The method is applicable to coating materials having hexavalent chromium contents in the range of about 0,05 % (m/m) to 5 % (m/m). This methodid the referee method in cases of dispute. This second edition cancels and replaces the ISO 3856/5-1980, of which it constitutes a through revision. |
| Дата регистрации: | 10.01.85 |
| Дата введения: | 01.11.84 |
| Код КГС: | Л19 |
| Код ОКСТУ: | 2310;2309 |
| Код ОКС(МКС): | 87.040 |
| Код ОКП: | 2310;2309 |
| Нормативные ссылки: | DIN ISO 3856-5-1986, EQV*DIN 53770-8-1989, NEQ*NF T30-214-1981, NEQ*SFS-ISO 3856/5 Ex-1987, EQV*SFS-ISO 3856/5-1987, EQV*NEN-ISO 3856-5(1989/NNI), EQV |
| Ключевые слова: | CARBAZIDES CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHROMIUM CONTENT DANGEROUS MATERIALS DETERMINATION OF CONTENT DIPHENYLCARBAZIDE LACQUERS MATHEMATICAL CALCULATIONS METALS PAINTS PHENYL COMPOUNDS PIGMENTS PRINTING INKS SOLUBILITY SOLUTES SPECTROCHEMICAL ANALYSIS SPECTROPHOTOMETRY TESTING VARNISHES AMIDES CHEMICAL ANALYSIS AND TESTIN ORGANIC COMPOUNDS |
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