GB/T 30921.1-2014
Test method of purified terephthalic acid (PTA) for industrial use―Part 1:Determination of concentrations of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL)
HG/T 5687\uff5e5688-2020
HG/T 5501\uff5e5504-2018
HG/T 5400\uff5e5401-2018
HG/T 5946\uff5e5948-2021
HG/T 4890~4891-2016
HG/T 5624\uff5e5627-2019
HG/T 5612\uff5e5615-2019
GB/T 15597.1-2024
Plastics—Poly(methyl methacrylate)(PMMA) moulding and extrusion materials—Part 1:Designation system and basis for specifications
HG/T 5713\uff5e5716-2020
GB/T 29666-2013
Cosmetic preservatives - Mixture of methylchloroisothiazolinone and methylisothiazolinone with magnesium chloride and magnesium nitrate
HG/T 5652\uff5e5654-2019
HG/T 5303\uff5e5305-2018
GB/T 15597.2-2024
Plastics—Poly(methyl methacrylate)(PMMA)moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
GB/T 40911.2-2021
Plastics—Poly(methyl methacrylate) sheets—Types, dimensions and characteristics—Part 2: Extruded sheets
HG/T 5803\uff5e5806-2021
HG/T 6077\uff5e6078-2022
YC/T 423-2011
Determination of benzoic acid,sorbic acid,methylparaben,ethylparaben,propylparaben and butylparaben in tobacco flavourings and casings—High performance liquid chromatographic method
GB/T 15597.1-2009
Plastics - Poly(methyl methacrylate)(PMMA)moulding and extrusion materials - Part 1: Designation system and basis for specifications
GB/T 15597.2-2010
Plastics - Poly(methyl methacrylate)(PMMA)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties