This standard uses a counting frame to count, directly observe living organisms greater than or equal to 50 μm under a stereomicroscope, and calculate the density of living organisms greater than or equal to 50 μm in the sample through conversions such as sampling volume and concentrated sample volume, including sample collection and sample detection. , data recording and calculation, quality assurance and control and other main technical contents.
T/PSC 1.1-2022 history
2022T/PSC 1.1-2022 Determination for ballast water of ships — Part 1: Viable organisms greater than or equal to 50 in minimum dimension