Dnvgl-st-n001 - [portable]

It seems you’re referring to (now under DNV after the merger with GL), which is the standard for Marine Operations in the offshore wind, oil & gas, and renewable energy industries.

When lifting objects offshore, the movement of the crane vessel causes the load to swing or jerk. The standard provides formulas to calculate the DAF to ensure the rigging and crane are rated for the dynamic load, not just the static weight. dnvgl-st-n001

Understanding DNVGL-ST-N001: The Global Benchmark for Marine Operations It seems you’re referring to (now under DNV

If you are working with this standard, you will encounter these core concepts repeatedly: oil & gas