Pork chop
Fläskkotlett
63°CSources disagree here — see the safety line.
Cook to this all the way through
Safe minimum 70°CLivsmedelsverket
On the grill
This is the cut where the authorities part company. Livsmedelsverket says 70 °C; USDA says 63 °C with a 3 minute rest. The old advice predates modern trichinella control, and the difference in juiciness is large.
From your March cook: 15 briquettes was too many and 35 minutes in the chimney burned through them. Ten would have done it.