The next morning, the abbot looked at the ruined page. “You saved an hour, Lucius, and lost a month. Now you will scrape this parchment clean with pumice, re-rule every line, and sit beside old Brother Remigius until you learn that haste without care is not speed, but theft—of your own labor.”
| Standard | Focus Area | Key Difference | | :--- | :--- | :--- | | | Instrument valves & fittings (small bore) | Specifically for instrumentation, gauges, and transmitters | | ASME B16.34 | Large industrial valves (gate, globe, check) | For main process lines, not instrument connections | | ISO 17292 | Metal ball valves for petroleum and petrochemical | Broader valve types, not instrument-specific | | API 6A | Wellhead and Christmas tree equipment | For upstream oil & gas, much higher pressures | mss sp99 pdf
Covers ratings up to 15,000 psi (103.4 MPa) at a reference temperature of 100°F (38°C). The next morning, the abbot looked at the ruined page