Yttrium oxide of phosphor grade--Determination of iron oxide, lead oxide, nickel oxide and copper oxide contents--Emission spectrographic method
NORMA vydána dne 25.2.1988
Designation standards: GB/T 8762.4-1988
Note: NEPLATNÁ
Publication date standards: 25.2.1988
Country: Chinese technical standard
Kategorie: Technické normy GB