-
GB/T 1558-2023 in English
Test method for substitutional carbon content in silicon by infrared absorption
to be valid
Issued on:2023-12-28
$308.00 -
GB/T 42276-2022 in English
Determination of fluorine ion and chloride ion in silicon nitride powder—Ion chromatography method
valid
Issued on:2022-12-30
$308.00 -
GB/T 42263-2022 in English
Determination of nitrogen content in silicon single crystal—Secondary ion mass spectrometry method
valid
Issued on:2022-12-30
$308.00 -
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GB/T 39144-2020 in English
Test method for magnesium content in gallium nitride materials—Secondary ion mass spectrometry
valid
Issued on:2020-10-11
$196.00 -