Laboratories testing food quality and safety are encouraged to routinely perform proficiency tests. Proficiency testing is an external check of quality. It provides an independent and unbiased assessment of the performance of all aspects of the laboratory, both human and hardware.

• External check of quality for laboratories performing food testing
• Ensures accurate proficiency testing
• Equal concentration of all compounds and suitable for GC-FPD, GC-NPD, and GC-MS analysis

Each participating laboratory is encouraged to use its normal analytical method, thereby simulating the testing of a routine laboratory sample as closely as possible.

Contains ten components, those are chlorpyriphos, chlorpyriphos-methyl, diazinon, dichlorvos , etrimphos, fenitrothion, malathion, methacriphos, phosphamidon and pirimiphos-methyl.