The full NSTS test consists of 47 test items, the first 30 of which must be satisfied to receive a pass certificate. The subsequent 10 are advisory and the final 7 are optional test elements.

This comprehensive test covers all the application components of the sprayer to ensure the machine is working correctly and efficiently with further considerations of safety for the sprayer operative and the environment.

Major components of the sprayer tested include control systems, hoses and pipework, nozzles and nozzle control systems, filters, pumps, tank, chemical induction systems and booms. In addition it is recommended that computer control systems are checked to maximize efficiency and to satisfy the calibration element of crop assurance schemes.

Tests cost £225+vat up to 24m and £8+vat/m thereafter.