Test for 50 000cycles at a rate not exceeding 10 cycles per minute of alternating flow through the device of zero to the rated flow in accordance with Table 12.2, at ambient water temperature.
Test for 50 000cycles at a rate not exceeding 10 cycles per minute of alternating flow through the device of zero to the rated flow in accordance with Table 12.2, at ambient water temperature.
在环境水温下，按照表12.2，以每分钟通过装置的交变流量（在0~额定流量之间）循环次数不超过10的速率，进行50000次循环测试。