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GB/T 27843-2011
化学品 聚合物低分子量组分含量测定 凝胶渗透色谱法（GPC）
Chemicals - Determination of the low molecular weight content of a polymer using Gel permeation chromatography（GPC）
GB/T 27860-2011
Chemicals - Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
GB/T 12716-2011
Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads
GB/T 28266-2012
Non-destructive testing of pressure equipment - Qualification of radiographic film digitization systems
GB/T 28552-2012
Determination of acid number in transformer oils and turbine oils by BTB method
GB/T 28504.1-2012
Rare earth doped optical fibre - Part 1: Characteristics of double-cladding ytterbium-doped optical fibre
GB/T 28469.1-2012
Electromagnetic and inductive digital instrument - Part 1: General specification