Лаки и краски. Определение содержания растворимого металла. Часть 7. Определение содержания ртути в пигментной и жидкой части водоразбавленных красок спектрометрическим методом атомной абсорбции без пламени
Название (англ.):
Paints and varnishes; Determination of 'soluble' metal content; Part 7 : Determination of mercury content of the pigment portion of the paint and of the liquid portion of water-dilutable paints; Flameless atomic absorption spectrometric method
Описание (англ.):
The principle consists in oxidation of the of hte mercury compounds contained in the test solution obtained from the pigment portion of the paint or combustion with oxygen in an enclosed system of the evaporation residue of the test solution obtainedfrom the liquid portion of water-dilutable paints. Reduction of the mercury(II) compounds to elementary mercury. Determination of the mercury, as the monoatomic vapour, by cold vapour (flameless) atomic absorption spectrometry at a wavelength in the region of 253,7 nm. The method is applicable to coating materials having 'soluble' mercury contents in the range of about 0,005 % (m/m) to 0,05 % (m/m).
Дата регистрации:
01.02.85
Дата введения:
01.12.84
Код КГС:
Л61
Код ОКСТУ:
2166
Код ОКС(МКС):
87.040
Код ОКП:
2166
Нормативные ссылки:
BS 3900 PART B12-1986, EQV*DIN ISO 3856-7-1988, EQV*DS/ISO 3856/7-1986, EQV*NF T30-218-1984, EQV*SFS-ISO 3856/7 Ex-1987, EQV*SFS-ISO 3856/7-1987, EQV*NEN-ISO 3856-7(1989/NNI), EQV
Ключевые слова:
ANALYSIS ATOMIC ABSORPTION SPECTROPHOTOMETRY CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT LACQUERS MERCURY METALS PAINTS PIGMENTS SOLUBLE MATTER SOLVENT EXTRACTION METHODS TESTING VARNISHES ANALYSIS ATOMIC ABSO CHEMICAL ANALYSIS AND TESTIN SOLVENTS EXTRACTION METHODS