ISO TS 42501 2022 Sharing economy — General trustworthiness and safety requirements for digital platforms
ISO 20951 2019 Soil Quality — Guidance on methods for measuring greenhouse gases (CO2, N2O, CH4) and ammonia (NH3) fluxes between soils and the atmosphere.pdf
ISO 22262-2 2014 Air quality — Bulk materials — Part 2 Quantitative determination of asbestos by gravimetric and microscopical methods.pdf
ISO 6874 2015 Dentistry — Polymer-based pit and fissure sealants.pdf
ISO 14527-2 1999 Plastics — Urea-formaldehyde and ure melamine-formaldehyde powder moulding compounds (UF- and UF.pdf
ISO-IEC 15049 1997 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Specification functional model and information flows .pdf
ISO 3613 2021 Metallic and other inorganic coatings — Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys — Test methods.pdf
ISO 7870-7 2020 Control charts Part 7 Multivariate control charts.pdf
ISO 24619 2011 Language resource management — Persistent identification and sustainable access (PISA).pdf
ISO 21479 2019 Soil quality — Determination of the effects of pollutants on soil flora — Leaf fatty acid composition of plants used to assess soil quality.pdf
ISO 21670 2014 Fasteners — Hexagon weld nuts with flange.pdf
GB-T 21795-2008 化学品 模拟试验 污水好氧处理 生物膜法.pdf
GB-T 37361-2019 漆膜厚度的测定 超声波测厚仪法.pdf
GB-T 24623-2009 高压绝缘子无线电干扰试验.pdf
GB-T 40929-2021 高山滑雪杖和旅行滑雪杖 要求和试验方法.pdf
GB-T 12773-2021 内燃机气阀用钢及合金棒材.pdf
GB-T 21076-2017 证券及相关金融工具 国际证券识别编码体系.pdf
GB-T 24963-2019 液化天然气设备与安装 船岸界面.pdf
GB-T 117-2000 圆锥销.pdf
GB-T 22461-2008 表面化学分析 词汇.pdf
GB-T 2471-1995 电阻器和电容器优先数系.pdf