①. The data and information provided by Zhejiang E-MEM New Material Technology Co., Ltd in this sample are allobtained through long-term experiments, and we are convinced that these dataand information are accurate and effective. Customers are requested to use theproduct in strict accordance with the design, use and maintenance requirementsof the product and keep relevant data records. Hangzhou E-MEM EnvironmentalTechnology Co., Ltd shall not bear any consequences arising from customers' failureto use and maintain the products in accordance with the conditions provided bythis sample.

②. The permeate flow listed in thetable is the average value, and the deviation of single membrane element ofpermeate flow is ±20%.

③. Before products leaving the factory,the dry membrane element has no protective liquid, while the wet membraneelement is stored and treated with 1.0% sodium bisulfite (10% glycerinantifreeze added in winter) solution and vacuum-packed.

④. Dry membrane elements should alwaysbe kept wet after wetting. When wet membrane element is not used for a longtime, in order to prevent the growth of microorganisms, it is recommended tosoak the membrane element with protective liquid containing 1.0% sodiumbisulfite (food grade) (prepared with RO production water).

⑤. For initial use of membraneelements, it is recommended to flush first at low pressure for 15-25 minutesand then at high pressure for 60-90 minutes (water production not less than 50%of the system design). All production and concentrated water shall bedischarged within the first hour of membrane element operation.

⑥. It is prohibited to add any chemical agentthat has an impact on the membrane element in storage and operation. If suchchemical agent is violated, Hangzhou E-MEM Environmental Technology Co., Ltdwill not bear all the consequences arising therefrom.