She pulled up the feed. A gasket on a 4-inch line was weeping, then spraying. Propane. The wind was blowing southeast — directly toward the old building.

If you have just downloaded the PDF, follow this workflow:

Mara looked at the API RP 752 PDF open on her second monitor — Section 6.3, Siting Criteria. She remembered arguing with the old-timers. "We've used Building 43 for twenty years. It's fine."

The value of the is truly found in its non-mandatory appendices: