ISO 21195:2018 is a standard related to ships and marine technology. Specifically, it is titled “Ships and marine technology — Requirements and guidelines for underwater cleaning of ships.” This standard provides requirements and guidelines for the underwater cleaning of ships to minimize the risk of transferring invasive aquatic species or harmful sediments.

The purpose of this standard is to address environmental concerns related to biofouling and the spread of invasive species through ships’ ballast water and hulls. Biofouling refers to the accumulation of microorganisms, plants, algae, or small animals on submerged structures such as ship hulls.

Key points covered by ISO 21195:2018 may include:

1. Procedures and methods for underwater cleaning of ship hulls.

2. Criteria for the selection of cleaning equipment and tools.

3. Environmental considerations to minimize the impact on marine ecosystems.

4. Safety measures for personnel involved in underwater cleaning operations.

5. Monitoring and reporting requirements for underwater cleaning activities.

Adhering to this standard helps ship operators and cleaning service providers ensure that underwater cleaning activities are conducted in an environmentally responsible manner, reducing the risk of introducing invasive species to new marine environments and complying with international regulations.

If you have specific questions or need detailed information on any aspect of ISO 21195:2018, please let me know!