GB/T 17632 - 1998 stipulates the test method for acid resistance and alkali performance of Geotextile and related products. The standard specifies sample selection and preparation, specifies the configuration of acid and alkali for test, standardizes the operation process of soaking test, including soaking time, temperature control, etc., and also describes the performance testing and result evaluation method of treated samples. Acid resistance and alkali performance affect the service life of Geotextile in special environments. This standard provides unified test specifications for Geotextile production, testing and engineering applications, helps to control product mass, ensures the stable application of Geotextile in acid and alkali environments, and promotes the standardization of testing in the Geotextile industry.