Pipes
Each year several miles of plastic pipes are buried in the ground and hopefully we will not see them anymore.To ensure that the length of life is at least the promised SP performs about 1500 material test and about 1500 internal pressure tests per year in connection with the sampling SP performs at the manufacturers stock. The times when the pipes or the joints are excavated again often depends on damages and even then SP can be a partner in determination of the cause of the failure.