Following the purge of oxygen gas from a pipe weld area, measure trace ppm oxygen levels with the portable, low-cost Pipe Weld Purge PPM Oxygen Analyzer from Advanced Instruments Inc. to prevent substandard welds

A major oil pipeline fabricator in Norway will soon be using state-of-the-art equipment as it begins work on the $84 M offshore hook-up at the Valhall field in the southern North Sea.