#NM-177-111: 7 Panel Split Specimen Cup AD ((COC AMP THC MOP OPI BZO mAMP) + AD (pH, Specific Gravity, Oxidant) Box of 25. The Split Specimen Cup has a patented key operated trigger system that allows the collector to transfer 2ml of the specimen into the separate testing chamber. If the test reports a non-negative result, the cup can then be sent to the laboratory with the remaining untouched specimen for GC/MS confirmation.