GB/T 24721.4-2023 Road glass fiber reinforced plastic products Part 4: Non-pressure communication manhole cover is a standard that specifies the requirements and test methods for non-pressure communication manhole covers made of glass fiber reinforced plastic (GRP) for use in highways.
This standard is applicable to non-pressure communication manhole covers used in various road environments, such as urban roads, highways, and expressways. The covers are designed to provide easy access to underground communication systems while ensuring the safety of pedestrians and vehicles.
The non-pressure communication manhole covers manufactured in accordance with this standard are made of high-quality glass fiber reinforced plastic materials, which provide excellent strength, durability, and resistance to corrosion. These covers are lightweight yet sturdy, making them ideal for use in various road installations.
In addition, this standard specifies the requirements for the dimensions, appearance, and performance of the non-pressure communication manhole covers. It also includes test methods to evaluate their load-bearing capacity, impact resistance, and dimensional stability. Compliance with this standard ensures that the manhole covers meet the necessary safety and quality standards for use in road applications.
Overall, GB/T 24721.4-2023 sets forth the essential guidelines for the production and evaluation of non-pressure communication manhole covers, ensuring their reliability and longevity in road infrastructure.
GB/T 24721.4-2023 history
2023GB/T 24721.4-2023 Glass fiber reinforced plastic products for road use - Part 4: Unpressurized communication manhole covers
2009GB/T 24721.4-2009 Glass fiber reinforced plastic product for highway.Part 4:Non-pressure communications well lid