Comparison of purity of REV 03 and REV 02 crucibles

REV 03 = current production in Germany, high purity crucible due to the use of high quality materials and several special cleaning processes

REV 02 = production in Australia till 2017

Examination with high-precision analysis technology

Trace analysis method is ETV/ICP-OES

• ETV: Electro Thermal Vaporization
• ICP: Inductively Coupled Plasma
• OES: Optical Emission Spectrometry

Test specimen are solid graphite sample

solid graphite sample, parts of the crucibles