BSI 20/30409935 DC 2020
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BS ISO 13268. Thermoplastics piping systems for non-pressure underground drainage and sewerage. Thermoplastics shafts or risers for inspection chambers and manholes. Determination of ring stiffness
Published By | Publication Date | Number of Pages |
BSI | 2020 | 16 |
This document specifies a test method for assessing the initial (short-term) tangential ring stiffness of riser shafts for thermoplastics inspection chambers or manholes.