①　为了减少吹扫时增加的临时管线，节省试压吹扫时间，提高试压吹扫合格率，管道试压、吹扫工作按系统、片区、压力等级进行，试压、吹扫前必须编制方案指导施工。 (1) in order to reduce the increase of temporary pipeline when scavenging, save testing purging time, improve the testing qualified rate of purging, pipeline pressure test and purging work according to the system, area, pressure rating, pressure test and purging before must be compiled to guide the construction plan. 　　②　管道试压采用洁净水，当对连有不锈钢管道进行试验和冲洗时，水中的氯离子含量不得超过25×10（25ppm），管道试压和冲洗程序执行总包商的规定。 (2) the pipeline pressure test with clean water, and when to test even with stainless steel pipes and flushing, the content of chlorine ion in the water shall not exceed 25 x 10 (25 parts per million (PPM), pipeline pressure testing and flushing process enforce the rules of the contractor. 　　③　压力试验时，无关人员不得进入。压力试验完毕，不得在管道上进行修补。 In the stress test, no one is allowed to enter. The pressure test shall be completed and shall not be repaired on the pipe. 　　④　压力试验前，应具备下列条件： Before the pressure test, the following conditions shall be met: 　　a．试验范围内的管道安装工程除涂漆、绝热外，已按设计图纸全部完成，安装质量符合有关规定。 A. The piping installation works in the test range are finished in accordance with the design drawings and the installation quality conforms to the relevant regulations. 　　b．焊缝和其它待检部位尚未涂漆和绝热。 B. The weld and other waiting areas have not been painted or insulated. 　　c．管道上的膨胀节已设置了临时约束装置。 C. The expansion section of the pipe has set up the temporary restraint device. 　　d．试验用压力表已经校验，并在周期内，其精度不得低于1.5级，表的满刻度值应为被测最大压力的1.5-2倍，压力表不得少于两块。 D. The test pressure gauge has been calibrated and within the period, its accuracy shall not be lower than 1.5, and the full scale of the meter shall be 1.5 to 2 times the maximum pressure measured, and the pressure gauge shall not be less than two. 　　e．符合压力试验要求的液体或气体已备齐。 E. The liquid or gas required to meet the pressure test is ready. 　　f．按试验要求，管道已经加固。 F. The piping has been strengthened according to the test requirements. 　　g．待试管道与无关系统已用盲板或采取其它措施隔开。 G. The test tube is separated from the unrelated system by blind plate or other measures. 　　h．待试管道上的安全阀及仪表元件等已经拆下或加以隔离。 H. The relief valve and instrument element in the tube path have been removed or isolated. 　　i．试验方案已经批准，并进行了技术交底。 I. The pilot scheme has been approved and the technology has been carried out.