Manhole Mechanical Test Series

Two benches that between them cover the mechanical acceptance tests of a plastic inspection chamber: ring stiffness and top-load crushing on the chamber body, and negative-pressure (anti-flotation) behaviour of the installed chamber. Both use the same frame, servo loading and displacement logging, so results from the two machines are directly comparable.

两台设备覆盖塑料检查井的力学验收：井筒环刚度与顶压压溃，以及安装状态下的负压（抗浮）性能。两者共用同一机架、伺服加载与位移记录，结果可直接比对。

Not sure which test standard applies? The RTP pipe testing machine items maps every required test item to its standard and to the machine that performs it.
不确定该做哪一项试验？型式试验对照表按标准列出试验项目与对应机型。