標準號：BS EN 1394-1997
中文標準名稱：塑料管道系統.玻璃纖維增強熱固性塑料(GRP)管.外表初始圓周抗拉強度的測定
英文標準名稱：Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of the apparent initial circumferential tensile strength
標準類型：G33
發布日期：1997/6/15 12:00:00
實施日期：1997/6/15 12:00:00
中國標準分類號：G33
國際標準分類號：23.040.20
適用范圍：This standard specifies six test methods for the determination of the apparent initial tensile strength in the circumferential direction per unit length of glass-reinforced thermosetting plastics (GRP) pipes. The burst test (method A) is suitable for all types and sizes of pipes. It is the preferred method for pipes up to and including DN 600. For pipes larger than DN 600 one of the following methods may be preferred. The split disc test (method B) may not be suitable for pipes with helically wound reinforcing layers. The strip test (method C) and the modified strip test (method D) are suitable for pipes with a nominal size of DN 600 and greater, and are applicable where the split disc test is not suitable. The restrained strip test (method E) is suitable for all types of pipes with a nominal size greater than DN 600. The notched plate test (method F) is primarily intended for use for helically wound pipes of nominal size greater than DN 600 with a winding angle other than approximately 90° This method may be used also for other types of pipe with nominal sizes greater than DN600. Results from one method are not necessarily equal to the results derived from any of the alternative methods. However, all methods have equal validity.