GB/T 36137-2018 in English

1. Background of Standard Formulation and Analysis of Technology Evolution

GB/T 36137—2018 "Hollow Fiber Ultrafiltration Membrane and Microfiltration Membrane Component Integrity Test Method" is one of the important standards in China for separation membranes. The formulation of this standard is based on the rapid development of membrane separation technology, especially its wide application in water treatment, biopharmaceuticals and other industries.

With the advancement of membrane technology, hollow fiber membranes have become the mainstream technology due to their advantages such as high flux and long life. However, the integrity of membrane components is directly related to the separation effect and system reliability, so the requirements for inspection methods are becoming increasingly stringent. This standard aims to unify and standardize inspection methods to ensure the quality control of membrane components.

2. Comparative analysis of standard frameworks

3. Recommendations for the implementation of the standard

a) Inspection condition control:Ensure that the inspection environment meets the requirements of normal temperature and sufficient lighting, and the pressure gauge accuracy is not less than 0.4.

b) Appearance inspection priority:Before the bubble observation method, an appearance inspection must be performed first to avoid misjudgment due to obvious defects.

c) Classification inspection strategy:Select the corresponding inspection method and pressure value according to the type of membrane module (online, pressure type, immersion type) to ensure the accuracy of the inspection results.