General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 11415-1989
Scope
This standard specifies the pore size, classification and designation of laboratory sintered (porous) filters based on the measured pore size. This standard applies to laboratory sintered filters made of glass, quartz glass, ceramic, metal and plastic materials.
GB/T 11415-1989 history
1989GB/T 11415-1989 Laboratory sintered(fritted) filters--Porosity grading, classification and designation