This test program is designed to meet NFPA 99-2012 Pipe Purity requirements as specified by National Fire Protection Association (NFPA) code. All medical, pharmaceutical and specialized Industrial facilities installing new, high purity gas piping systems or modifying existing gas delivery systems require gas purity validation testing before use. Pipeline contamination troubleshooting services can also be requested. Sampling involves rental of several small DOT sample cylinders, particulate sampling rigs and associated connective hardware. ALI offers on-site pipe outlet sampling, on-site testing (as appropriate) and sample transport services for this program.