This standard specifies the method for long-term hydrostatic testing of fiberglass reinforced thermoset Resin pipes and fittings, including definitions of terms, test principles, sample preparation, test conditions and equipment, test procedures, hydrostatic design criteria and their re-identification, and requirements for the preparation of test reports. The standard applies to thin-walled pipes with an outer diameter to wall thickness ratio greater than or equal to 10:1, mainly for evaluating their performance under long-term hydrostatic pressure. The standard provides a systematic test method and evaluation criteria for ensuring the safety and Reliability of pipes.