DIN EN ISO 21078-1:2008-04

DIN EN ISO 21078-1:2008-04

Determination of boron (III) oxide in refractory products - Part 1: Determination of total boron (III) oxide in oxidic materials for ceramics, glass and glazes (ISO 21078-1:2008); German version EN ISO 21078-1:2008

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This part of ISO 21078 specifies methods of determining boron(III) oxide in refractory products and raw materials, in mass fractions of 0,01 % or greater. It is appplicable to the determination of total boron(III) oxide in oxidic materials for ceramics, glass and glazes. The determination of boron(III) oxide is carried out using one of the following four methods: a) alkaline titrimetry in the case of samples containing more than 0,5 % by mass of boron(III) oxide; b) azomethine H absorption spectrophotometry in the case of samples containing from 0,01 % by mass to 2,5 % by mass of boron(III) oxide; c) curcumin absorption spectrophotometry (Rothocyanine method) in the case of samples containing from 0,01 % by mass to 1,0 % by mass of boron(III) oxide; d) inductively coupled plasma atomic emission spectrometry (ICP-AES) in the case of samples containing from 0,01 % by mass to 15 % by mass of boron (III) oxide.

Additional Info

Author Deutsche Institut für Normung e.V. (DIN)
Published by DIN
Document type Standard
ICS 81.080 : Refractories
Number of pages 23
Cross references EN ISO 21078-1 (2008-01), IDT,ISO 21078-1 (2008-01), IDT
Set MYSTD-20STD
Document history DIN EN ISO 21078-1 (2008-04),DIN EN ISO 21078-1 (2006-09),DIN 51086-1 (1998-04),DIN 51086-1 (1996-11)
Keyword DIN EN ISO 21078-1