The emissions to air of acrylonitrile (during polymerisation and up to the solution ready for spinning), expressed as an annual average, shall be less than 1,0 g/kg of fibre produced.

Assessment and verification

the applicant shall provide detailed documentation and/or test reports showing compliance with this criterion, together with a declaration of compliance from the fibre manufacturer(s).

The workplace emissions to air of N,N-dimethylacetamide (127-19-5) during polymerisation and spinning shall not exceed an Indicative Occupational Exposure Limit Value (IOELV) of 10,0 ppm.

Assessment and verification

emissions values are to be measured at those process stages in which the substances are used, expressed as an 8-hour average value (shift mean value). The applicant shall provide test reports and monitoring data from the fibre manufacturer(s) showing compliance with this criterion.