GB-T 28370-2012 长途客车内空气质量检测方法
ISO 2871-1 2010 Surface active agents Detergents Determination of cationic-active matter content Part 1 High-molecular-mass cationic-active matter.pdf
ISO 18609 2000 Animal and vegetable fats and oils Determination of unsaponifiable matter Method using hexane extraction.pdf
ISO 37151 2024 Smart community infrastructures Principles and requirements for performance metrics.pdf
ISO 8761 1989 Work-place air — Determination of mass concentration of nitrogen dioxide — Method using detector tubes for short-term sampling with direct indication.pdf
ISO 4497 2020 Metallic powders — Determination of particle size by dry sieving.pdf
ISO 6743-14 1994 Lubricants, industrial oils and related products (class L) — Classification — Part 14 Family U (Heat treatment).pdf
ISO 14577-1 2015 Metallic materials — Instrumented indentation test for hardness and materials parameters — Part 1 Test method.pdf
ISO 14719 2011 Chemical analysis of refractory material glass and glazes — Determination of Fe2+ and Fe3+ by the spectral photometric method with 1,10-phenanthroline.pdf
ISO ASTM 51261 2013 Practice for calibration of routine dosimetry systems for radiation processing.pdf
ISO 8039 2014 Microscopes — Values, tolerances and symbols for magnification.pdf
GB-T 18249-2000 检查铁合金取样和制样偏差的试验方法.pdf
GB-T 21391-2008 用气体涡轮流量计测量天然气流量.pdf
GB-T 23421-2009 飞机装载设备基本要求.pdf
GB-T 3671.2-1996 水溶性染料冷水溶解度的测定.pdf
GB-T 42185-2022 优质服务 原则与模型.pdf
GB-T 6609.25-2004 氧化铝化学分析方法和物理性能测定方法 松装密度的测定.pdf
GB-T 22037-2008 航空有内胎轮胎胎圈密合压力试验方法 电测法.pdf
GB-T 20284-2006 建筑材料或制品的单体燃烧试验.pdf
GB-T 7358-1998 船舶电气设备 系统设计 总则.pdf
GB-T 32723-2016 土壤微生物生物量的测定 底物诱导呼吸法.pdf