GB/T 39938-202 1/IEC 62999 :2016.Electric room heating一Underfloor heating一Performance characteristics-Definitions, method of testing, sizing and formula symbols.GB/T 39938规定了...
GB/T 39934-2021.Determination of volatile organic compounds from furniture products-Gas chromatography-mass spectrometry.GB/T 39934规定了采用气相色谱质谱法进行家具产品...
GB/T 28004.1-2021.Disposable diapers- Part 1: Disposable diapers for baby.GB/T 28004的本部分规定了婴儿用纸尿裤、纸尿片、纸尿垫(护理垫)的产品分类、技术要...
GB/T 39371-2020.Leather-Physical and mechanical tests- Determination of softness.GB/T 39371规定了皮革柔软度的测定方法.GB/T 39371适用于鞋面革、家具革、服装革...
GB/T 38998-2020.Cut-size office paper- Measurement of edge quality.1范围GB/T 38998规定了裁切后办公用纸边缘质量的测定方法。GB/T 38998适用于裁切后的办公用...
GB/T 39366-2020.Leather-Tests for colour fastness- Colour fastness to crocking.GB/T 39366规定了用白色棉布在皮革表面进行往复式摩擦测定皮革表面耐摩擦色牢度...
GB/T 39452-2020.Leather- Physical and mechanical tests-Tests for adhesion of finish.GB/T 39452规定了皮革涂饰层与皮革之间(或涂饰层与涂饰层之间)的粘着牢度的...
GB/T 39364-2020.Leather- Chemical , physical , mechanical and fastness tests- Sampling location.4.1.2样品的选择4.1.2.1选择实验室样品的区域不应有明显的各种类型...
GB/T 39370-2020.Leather- Physical and mechanical tests-Determination of surface reflectance.GB/T 39370规定了皮革在可见光和近红外光下表面反射性能的测定方法。...
GB/T 39500-2020.Leather-Physical and mechanical tests-Determination of apparent density and mass per unit area.GB/T 39500规定了皮革视密度和单位面积质量的测定方法...
