GB/T 24721.4-2023 Translated English of Chinese Standard (GB/T 24721.4-2023, GBT24721.4-2023): Glass fiber reinforced plastic product for highway -- Part 4: Non-pressure communication well lid
https://www.chinesestandard.net, 2023 M05 18 - 16 páginas
This document specifies the structure, dimensions and deviations, model, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage requirements of glass fiber reinforced plastic non-pressure communication well lid products for highway. This document is applicable to the production, inspection and usage of glass fiber reinforced plastic non-pressure communication well lid (hereinafter referred to as ¡°glass fiber reinforced communication well lid¡±) for non-vehicle driving areas on highways.
Structure Dimensions Deviations and Model
Marking Packaging Transportation and Storage
Appendix A normative Determination Method for Overall Bearing Capacity
accelerated aging resistance aging fluorescent ultraviolet aging xenon arc Appearance Quality arc light source arithmetic mean artificial accelerated aging chemical media clear opening communication well lid conduct the test Damp heat resistance depth gauge diameter or side division value document environmental adaptability fiber reinforced communication fiber reinforced plastic flame retardancy fluorescent ultraviolet light further standardize GB/T glass fiber reinforced greater than 0.02 insertion depth less than 80 level of glass lid products material flexural strength measurement result No.5 of Table nominal outer diameter Overall Bearing Capacity overall failure load plastic non-pressure communication products for highway rate of material rate of overall rectangular well lid reinforced plastic non-pressure Reinforced Plastic Product requirements and test Resistance to artificial retention rate side length Sign Base Panel Smoke density standardize the quality Structure and Dimensions support opening take the arithmetic technical requirements test methods ultraviolet light source value not greater Version Water resistance xenon arc light