ISO/TC 48 Laborausrüstungen,
ISO/TC 48 Laboratory equipment,
ISO/TC 48 Équipement de laboratoire,
ISO Internationale Organisation für Normung,
ISO International Organization for Standardization,
ISO Organisation Internationale de Normalisation
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Media type:
Standard
Title:
ISO 10136-6
:
Glass and glassware; analysis of extract solutions; part 6: determination of boron(III) oxide by molecular absorption spectrometry
Other titles:
Früher unter dem Titel: ISO/DIS 10136-6 (1990-10)
Glas und Glasgeräte; Chemische Analyse von Extraktionslösungen; Teil 6: Photometrische Bestimmung von Bor(III)-oxid
Verre et verrerie; analyse des solutions d'attaque; partie 6: dosage de l'oxyde de bore(III) par spectrométrie d'absorption moléculaire
Footnote:
Internationale Übereinstimmung mit: BS 7709-6 (1993-09-15) - identisch; TS ISO 10136-6 (2002-03-18) - identisch
Description:
The principle of the method specified is complexing of the boron in the extract solution to be analyzed with azomethine H, measurement of the optical density of the resulting colour complex by means of a molecular absorption spectrometer at 415 nm using 20 mm optical cells. Measures the concentration of boron, expressed as its oxide B<sub>2</sub>O<sub>3</sub>. Applies to the analysis of extract solutions obtained from any kind of glass or glassware including laboratory and pharmaceutical ware made, e.g., from borosilicate glass, neutral glass, tableware and kitchenware.