使用中试规模的系统确定并评估了几种监测低压膜完整性的方法。这些技术包括颗粒计数、颗粒监测、浊度监测、泡点测试、气压保持测试和声波传感。虽然在整个过滤循环中，它不能提供连续的完整性监测，但气压保持试验是最有效的直接监测方法。在提供连续监测的技术中，粒子计数是最敏感的。包括19个参考文献、表格和图表。

Several methods for monitoring the integrity of low-pressure membranes were identified and evaluated using pilot-scale systems. These techniques included particle counting, particle monitoring, turbidity monitoring, bubble-point testing, air-pressure-hold testing, and sonic sensing. Although it does not provide continuous integrity monitoring throughout the filtration cycle, the air-pressure-hold test was the most effective direct monitoring method. Of the techniques that provide continuous monitoring, particle counting was the most sensitive. Includes 19 references, tables, figures.