For half a second, the number jumped to 6 ppm. Then back to 0.0. Then 0.0 again.
The file was open on his second monitor: API RP 55 – Recommended Practice for Oil and Gas Producing and Gas Processing Plant Operations Involving Hydrogen Sulfide . It was dense, technical, and older than he was. The first edition had been written after a 1975 explosion in Denver City that had leveled a trailer park. Since then, it had been updated, amended, and cited in more litigation than Leo cared to remember. api rp 55 pdf
He called the field operator, a kid named Danny who was out checking the separator. For half a second, the number jumped to 6 ppm
"Hey, you smell anything?" Leo asked.
So here he was, midnight shift, waiting on a service crew to come swap out the old gas detectors. To kill time, he scrolled through the PDF. He had read it a hundred times, but tonight, the words felt heavier. He stopped at Section 4.2: Training. The language was careful, almost gentle. Personnel should be able to recognize the odor of hydrogen sulfide at low concentrations (0.13 ppm)… but must not rely on olfactory senses as the primary warning method due to olfactory fatigue. The file was open on his second monitor:
"It's just a recommendation," Leo had argued over the phone. "It says 'Recommended Practice,' not 'Thou Shalt.'"
