HY/T 0478-2025 Spectrophotometric seawater pH in-situ analyzer

GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 17626.2-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrostatic discharge immunity test GB/T 32065.2-2015 Environmental test methods for oceanographic instruments—Part 2:Cold GB/T 32065.4-2015 Environmental test methods for oceanographic instruments—Part 4:Dry heat GB/T 32065.7-2015 Environmental test methods for oceanographic instruments—Part 7:Damp heat,cyclic GB/T 32065.8-2020 Environmental test methods for oceanographic instruments—Part 8:Change of temperature test GB/T 32065.10-2020 Environmental test methods for oceanographic instruments—Part 10:Salt fog test GB/T 32065.11-2021 Environmental test methods for oceanographic instruments—Part 11:Shock and bump test GB/T 32065.14-2019 Environmental test methods for oceanographic instruments—Part 14:Vibration test GB/T 32065.15-2019 Environmental test methods for oceanographic instruments—Part 15:Hydrostatic pressure test JJG 763-2019 CTD Measuring Instruments HY 016.14-1992 HY/T 042-2015 Classification,codes and model denomination for marine instrument and equipment