WSAA is pleased to announce the publication of revised water industry standard WSA 137-2018 Issue 2.
Water Industry Standard: WSA 137-2018 Issue 2
Title: Water Industry Standard for Maintenance Shafts and Chambers for Sewerage
Issue 2 of WSA 137-2018 has been amended to include:
- revised definitions of Maintenance shafts and Maintenance Chambers to reflect the product now available in the market;
- additional infiltration and exfiltration tests for inlet connectors into the riser.
- conformity assessment requirements Amendments to Appendix A, A4 Product Certification.
- General updates to references and other editorial amendments.