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International Standard Category: Testing of metals in general

GB/T 4059-2007    Polycrystalline silicon—Examination method—Zone-melting on phosphorus under controlled atmosphere
硅多晶气氛区熔基磷检验方法;
Category No.:77.040.01 Valid Status:superseded
Issued Organization:AQSIQ,SAC Issued Date:2007-12-18
Implemented Date:2008-2-1 Abolished Date:
Superseded Standard.:GB/T 4059-2018 Test method for phosphorus content in polycrystalline silicon by zone-melting method under controlled atmosphere
Superseded Date:2019-11-1
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