StandardCheck 6 vial kit. Includes: HPC testing using R2A 9215C Method, pH and TDS testing, 6 sterile sample collection vials, freezer packs, insulated shipper and Next Day Air return shipping label. Results report via online customer portal. The gold-standard for dental water testing; our R2A test captures the widest spectrum of viable bacteria from your samples. If you treat a lot of high risk patients, this is your test. FEATURES AND BENEFITS: • Exponential dilution technology eliminate “too numerous to count” results • Automated, digital colony counting • Detailed report with pictures. • USEPA approved method