DIN 51079-1:2004 Testing of ceramic materials - Chemical analysis of silicon carbide used as raw material and as constituent in materials - Part 1: Decomposition with sodium carbonate and boric acid
This standard specifies a method of digesting silicon carbide and ceramics containing silicon carbide as a
main or subsidiary constituent. The method can be used to determine the total content of silicon and contents
of metallic impurities, such as aluminium, calcium, iron, magnesium, manganese, titanium and vanadium,
exceeding 0,05 % (m/m) in each case. It can also be used to determine lower contents not exceeding 0,05 %
(m/m) provided a test is performed for losses due to, for example, diffusion or alloy formation with the crucible
material in individual cases.
NOTE 1 The aluminium, calcium, iron, manganese, magnesium, silicon, titanium and vanadium contents may be
determined, for example, by the methods specified in DIN EN 955-2 or DIN 51083-1 to DIN 51083-10, respectively.
NOTE 2 General information on methods of digestion for specific groups of substances prior to X-ray fluorescence
analysis (XRF) are given in Supplement 1 to DIN 51001-1 for materials containing silicon carbide.
DIN 51079-1:2004 history
2008DIN EN ISO 21068-1:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 1: General information and sample preparation (ISO 21068-1:2008); English version of DIN EN ISO 21068-1:2008-12
2004DIN 51079-1:2004 Testing of ceramic materials - Chemical analysis of silicon carbide used as raw material and as constituent in materials - Part 1: Decomposition with sodium carbonate and boric acid
1970DIN 51079-1:1991 Testing of ceramic materials - Chemical analysis of silicon carbide used as raw material and as constituent in materials - Part 1: Decomposition with sodium carbonate and boric acid