ISO/TC 45
| Projekta Nr. | ISO/TS 22687:2018 |
|---|---|
| Nosaukums | <p>This document establishes a general framework and considerations for assessing the environmental fate of tyre tread chemical additives in cured polymer and tyre and road wear particles (TRWP) throughout a tyre lifecycle. This document is applicable to laboratory-generated TRWP from cured tread polymer of known composition.</p> <p>Testing strategies are described for assessing the environmental fate and transport of tyre chemicals in the following processes that can occur during the tyre lifecycle:</p> <p>a) transformation of chemical additives in tread during tyre curing;</p> <p>b) transformation of chemical additives during TRWP generation (tyre use);</p> <p>c) transformation of chemical additives during TRWP aging and weathering;</p> <p>d) leaching of chemical additives and transformation products from TRWP to water;</p> <p>e) availability of chemical additives and transformation products from TRWP in sediment ecosystems.</p> <p>Mass concentrations and fractions of chemicals released or available from TRWP for the five lifecycle steps are used to estimate</p> <p>a) cumulative fraction of tread chemical(s) and transformation product(s) released to water, and</p> <p>b) cumulative fraction tread chemical(s) and transformation products(s) environmentally available.</p> |
| Reģistrācijas numurs (WIID) | 73681 |
| Darbības sfēra | <p>This document establishes a general framework and considerations for assessing the environmental fate of tyre tread chemical additives in cured polymer and tyre and road wear particles (TRWP) throughout a tyre lifecycle. This document is applicable to laboratory-generated TRWP from cured tread polymer of known composition.</p> <p>Testing strategies are described for assessing the environmental fate and transport of tyre chemicals in the following processes that can occur during the tyre lifecycle:</p> <p>a) transformation of chemical additives in tread during tyre curing;</p> <p>b) transformation of chemical additives during TRWP generation (tyre use);</p> <p>c) transformation of chemical additives during TRWP aging and weathering;</p> <p>d) leaching of chemical additives and transformation products from TRWP to water;</p> <p>e) availability of chemical additives and transformation products from TRWP in sediment ecosystems.</p> <p>Mass concentrations and fractions of chemicals released or available from TRWP for the five lifecycle steps are used to estimate</p> <p>a) cumulative fraction of tread chemical(s) and transformation product(s) released to water, and</p> <p>b) cumulative fraction tread chemical(s) and transformation products(s) environmentally available.</p> |
| Statuss | Standarts spēkā |
| ICS grupa | 13.020.40 83.160.01 83.060 |