Лаки и краски. Определение массовой доли растворимого металла. Часть 4. Определение массовой доли кадмия, метод пламенной атомно-абсорбционной спектроскопии и полярографический метод
Название (англ.):
Paints and varnishes; Determination of 'soluble' metal content; Part 4 : Determination of cadmium content; Flame atomic absorption spectrometric method and polarographic method
Описание (англ.):
The principle of the AAS method consists in inspiration of the test solution into an acetylen/air flame. Measurement of the absorption of the selected spectral line emitted by a cadmium hollow-cathode or cadmium discharge lamp, in the region of 228,8 nm.The principle of the polarographic method consists in electrolysis of the test solution in a polarographic cell measurement of the corresponding heigth of the potential step. The method are applicable to coating materials having 'soluble' cadmium contents in the range of about 0,05 % (m/m) to 5 % (m/m). The AAS method should be used as the referee method in cases of dispute. This second edition cancels and replaces ISO 3856/4-1980.
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 3856-4-1986, EQV*NF T30-216-1981, NEQ*SFS-ISO 3856/4 Ex-1987, EQV*SFS-ISO 3856/4-1987, EQV*NEN-ISO 3856-4(1989/NNI), EQV
Ключевые слова:
ATOMIC ABSORPTION SPECTROPHOTOMETRY CADMIUM CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CONTENT DANGEROUS MATERIALS DETERMINATION OF CONTENT LACQUERS MATHEMATICAL CALCULATIONS METALS PAINTS PIGMENTS POLAROGRAPHIC METHODS PRINTING INKS SOLUBILITY SOLUBLE MATTER SOLUTES SPECTROCHEMICAL ANALYSIS TESTING VARNISHES ATOMIC ABSO CHEMICAL ANALYSIS AND TESTIN