For a synthetic polymer with number average molecular weight (NAMW) > 1000, toxicology data is not required under the Act. None was provided by the notifier. The notified polymer has a NAMW of >1000 and is therefore not expected to traverse biological membranes and constitute a toxicological hazard. Although the notified polymer contains a low level of a hazardous residual monomer and low levels of low molecular weight, no loss by exudation or leaching from the polymer is expected to occur and therefore, they are not expected to present a toxicological threat. 10. ASSESSMENT OF ENVIRONMENTAL EFFECTS As the synthetic polymer under assessment has a predominant molecular weight greater than 1000, then data on toxicology (Part C) is not required. 11. ASSESSMENT OF ENVIRONMENTAL HAZARD Hazard from Use From the scenarios presented for the three phases of the polymer's life (manufacture, formulation in paint and paint application), none of the polymer would be expected to be released to the environment in the first two phases. The company expects most of the polymer will be cured onto items that are painted with Crodakyd S99 type paint. They do not expect very much at all to be disposed of by landfill. The captured polymer (in filters etc.)would be expected to cure as a high molecular weight, polymer which is insoluble and will not cross biological membranes. on the assumptions in "Release" above, there could be 62 tonnes of cured polymer disposed to landfill, but no environmental hazard is expected from this, given the nature of the cured polymer. Therefore, the use of Crodakyd S99 should no environmental impact, so long as it is used as stated. Hazard from Manufacture, Handling and Disposal The MSDS is satisfactory for handling, storage, transport and spill-control/disposal of the Crodakyd S99 product. 12. ASSESSMENT OF PUBLIC AND OCCUPATIONAL HEALTH AND SAFETY EFFECTS
For a synthetic polymer with number average molecular weight (NAMW) > 1000, toxicology data is not required under the Act. None was provided by the notifier. The notified polymer has a NAMW of >1000 and is therefore not expected to traverse biological membranes and constitute a toxicological hazard. Although the notified polymer contains a low level of a hazardous residual monomer and low levels of low molecular weight, no loss by exudation or leaching from the polymer is expected to occur and therefore, they are not expected to present a toxicological threat. 10. ASSESSMENT OF ENVIRONMENTAL EFFECTS As the synthetic polymer under assessment has a predominant molecular weight greater than 1000, then data on toxicology (Part C) is not required. 11. ASSESSMENT OF ENVIRONMENTAL HAZARD Hazard from Use From the scenarios presented for the three phases of the polymer's life (manufacture, formulation in paint and paint application), none of the polymer would be expected to be released to the environment in the first two phases. The company expects most of the polymer will be cured onto items that are painted with Crodakyd S99 type paint. They do not expect very much at all to be disposed of by landfill. The captured polymer (in filters etc.)would be expected to cure as a high molecular weight, polymer which is insoluble and will not cross biological membranes. on the assumptions in "Release" above, there could be 62 tonnes of cured polymer disposed to landfill, but no environmental hazard is expected from this, given the nature of the cured polymer. Therefore, the use of Crodakyd S99 should no environmental impact, so long as it is used as stated. Hazard from Manufacture, Handling and Disposal The MSDS is satisfactory for handling, storage, transport and spill-control/disposal of the Crodakyd S99 product. 12. ASSESSMENT OF PUBLIC AND OCCUPATIONAL HEALTH AND SAFETY EFFECTS
NA362FR.docx