GB/T 42629.2-2023 Code of practice for international seabed area and high seas environmental survey—Part 2:Marine chemical survey

GB/T 42629.1-2023 Code of practice for international seabed area and high seas environmental survey—Part 1:General GB/T 42629.3-2023 Code of practice for international seabed area and high seas environmental survey—Part 3:Marine biological survey GB/T 42629.4-2023 Code of practice for international seabed area and high seas environmental survey—Part 4:Physical features survey of marine sediments

GB/T 11911-1989 Water quality—Determination of irom and manganese—Flame atomic absorption spectrometric method GB/T 12763.1-2007 Specifications for oceanographic survey—Part 1:General GB/T 12763.4-2007 Specifications for oceanographic survey—Part 4:Survey of chemical parameters in sea water GB/T 12763.8-2007 Specifications for oceanographic survey—Part 8:Marine geology and geophysics survey GB 17378.4-2007 The specification for marine monitoring—Part 4:Seawater analysis GB 17378.5-2007 The specification for marine monitoring—Part 5:Sediment analysis GB 17378.6-2007 The specification for marine monitoring—Part 6:Organism analysis GB/T 42629.1-2023 Code of practice for international seabed area and high seas environmental survey—Part 1:General HY/T 206-2016 Determination of iron, manganese,nickel,potassium,sodium,calcium and magnesium in the marine sediments and organisms—Atomic absorption spectrophotometry GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values