BS ISO 21716-2. Ships and marine technology. Bioassay methods for screening anti-fouling paints Part 2. Barnacles
|Standard number:||20/30401646 DC|
|Status:||Draft for Comment|
- 13.020.99 Other standards related to environmental protection
- 47.020.99 Other standards related to shipbuilding and marine structures
ISO 21716 provides a compilation and description of in vitro bioassay methods that can be useful for the toxicological screening of anti-fouling paints. Toxicological screening tests included in ISO 21716 can be used for such purposes as early decision-making in research and product development, rapid feedback on potential toxicological concerns, or for the preliminary assessment of anti-fouling paints. ISO 21716 provides screening bioassays related to certain common genera of fouling organisms, namely barnacles, mussels and algae.
These screening tests are relatively simple and contain rapid laboratory tests that can be performed to provide an indication of the toxicity of a paint surface towards selected test organisms. The screening tests described can be used as part of a tiered approach to predict the ability of an anti-fouling coating to prevent fouling on ships or the translocation of invasive marine species by progressively involving subsequent semi-field (e.g. raft panels) and field testing (e.g. ship trials). On their own, the screening tests described in these documents do not reliably predict the ability of an anti-fouling coating to prevent fouling on ships or the translocation of invasive marine species. These screening tests should not be used in pesticidal or biocidal product registration schemes or for any other regulatory or administrative purpose.
This part of ISO 21716 describes a laboratory test method for screening anti-fouling paints in a flow-through system using barnacle cyprid larvae as the test organism. Cyprids of barnacle species Amphibalanus amphitrite are recommended. Other barnacle species may be used if Amphibalanus amphitrite is not available. The purpose of the test is to determine if there is a difference in barnacle settlement on painted test panels compared with barnacle settlement on inert non-toxic control panels under the conditions of the test. Statistical treatments may be applied to determine if the difference in barnacle settlement is statistically significant.