ISO 20236 2018 Water quality Determination of total organic carbon (TOC) dissolved organic carbon (DOC) total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic
ISO 3069 2000 End-suction centrifugal pumps Dimensions of cavities for mechanical seals and for soft packing.pdf
ISO 24544 2024 Rare earth — Recyclable Neodymium iron boron (NdFeB) resources — Class.pdf
ISO 128-2 2022 Technical product documentation (TPD) — General principles of representation — Part 2 Basic conventions for lines.pdf
ISO IEC 21888 2001 Information technology — Telecommunications and.pdf
ISO 24698-1 2018 Rubber raw Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber (NBR) Part 1 Combustion (Dumas) method.pdf
ISO 1461 2022 Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods.pdf
ISO 18937-1 2023 Imaging materials Methods for measuring indoor light stability of photographic prints Part 1 General guidance and requirements.pdf
ISO 5815-1 2019 Water quality Determination of biochemical oxygen demand after n days (BODn) Part 1 Dilution and seeding method with allylthiourea addition.pdf
ISO 3898 2013 Bases for design of structures — Names and symbols of physical quantities and generic quantities.pdf
ISO 10082 1999 Plastics — Phenolic resins — Classification and test methods.pdf
GB-T 2346-2003 流体传动系统及元件 公称压力系列.pdf
GB-T 27971-2011 非金属密封垫片 术语.pdf
GB-T 223.85-2009 钢铁及合金 硫含量的测定 感应炉燃烧后红外吸收法.pdf
GB-T 39351-2020 空间数据与信息传输系统 遥测空间数据链路协议.pdf
GB-T 8305-2013 茶 水浸出物测定.pdf
GB-T 44682-2024 液压传动 水液压泵测试方法.pdf
GB-T 16974-2009 信息技术 数据通信 数据终端设备用X.25包层协议.pdf
GB-T 1167-1996 过渡配合螺纹.pdf
GB-T 24733-2023 等温淬火球墨铸铁件.pdf
GB-T 15605-2008 粉尘爆炸泄压指南.pdf