All safety nets used for fall arrest must be subjected to an annual test of the energy absorption capacity of the net. When new, a safety net will normally be supplied with three test meshes loosely attached to the safety net. At no more than 12 month periods a test mesh will be taken off and tested (in accordance with ISO 1806).
Where the test mesh exceeds the minimum energy absorption capacity stated by the manufacturer then the nets may remain in service for a further period not exceeding twelve months. Where the energy absorption capacity falls below the level stated by the manufacturer then the net must be removed from service and destroyed.
The test house will produce written evidence of the results of the test which must be kept by the netting contractor until the following years test results are available. It is however good practice to keep all safety net test mesh results throughout the life of each net. It is also good practice for the test house to issue tags or labels which should be attached close to the manufacturers label to help confirm this information on site.
Please read Technical Bulletin 03 The Testing of Safety Nets for UV Degradation for more information.