These sources of error and uncertainty include variations in flare efficiency, mis-identification of flares, non-continuous sampling, and environmental effects like snow reflection.
But maybe he can just give away the sampling, for non-commercial use.
但是可能他会放弃非商业用途的节选版权。
3
When sampling at the level of fresh gas delivery in non-rebreathing systems. The sampling line can become obstructed by condensation drops or aspiration of any fluids.