The 7900HT TaqMan® Low Density Array Instrument Verification RNase P kit is used to validate the performance of the Applied Biosystems® 7900HT Fast Real-Time PCR Systems with the TaqMan® Low Density Array Block Upgrade. The 7900HT TaqMan® Low Density Array Instrument Verification RNase P kit contains an empty TaqMan® Low Density Array and 8 vials of RNase P detection reagents to detect and quantitate genomic copies of the human RNase P gene, a single-copy gene encoding the RNA moiety of the RNase P enzyme. Each vial contains premixed reagents (1X TaqMan® Universal PCR Master Mix, RNase P primers, and FAM™ dye–labeled probe) and template. The 7900HT TaqMan® Low Density Array Instrument Verification RNase P kit must demonstrate the ability to distinguish between 5,000 and 10,000 genomic equivalents with a 99.7% confidence level for a subsequent sample run in a single well. To ensure accurate results, Applied Biosystems® recommends that the performance of your instrument be verified every six months.