Life-safety rope
T ≥ 20 kN · 9.5–12.5 mm·G ≥ 40 kN · 11–16 mm
NFPA 2500 (formerly 1983) MBS, new, with sewn eyes as tested.
Standards
Technical (T) vs General (G) use. Confirm the standard year your AHJ adopted. Ratings below are MBS for new equipment as commonly cited from NFPA 2500 (formerly 1983). The label on the gear in your hand wins.
T ≥ 20 kN · 9.5–12.5 mm·G ≥ 40 kN · 11–16 mm
NFPA 2500 (formerly 1983) MBS, new, with sewn eyes as tested.
T 27 kN·G 40 kN
Minor axis / gate: T 7 kN · G 11 kN. Locking only on life safety.
T 22 kN·G 36 kN
MBS of the side plates. Sheave efficiency is separate (~85–95%).
T 13.5 kN·G 22 kN
Rated with the intended rope diameter. Watch heat on long lowers.
T 22 kN·G 36 kN
Tripods, gin poles, artificial high directionals. Mind the guy vectors.
T Class II / III·G Class II / III
Escape (Class I) is not a rescue harness. Chest + sit for inversion risk.
Field reference only. Does not replace training, AHJ policy, or manufacturer instructions. Confirm ratings on the gear in your hand.