TABLE I

Average Gas Flow Measurements through Microchannels Laser Drilled into the PE and EVA Film Patches; the Measurement Was Performed at a Pressure Difference between 50 mbar and 1000 mbar

	Flow Rate (mL/Min)
Differential Pressure (mbar)	50	100	300	500	700	1000
Nominal Leak Size (µm)	EVA Film 300 µm
2	0.010	0.017	0.041	0.071	0.102	0.144
15	0.220	0.434	1.252	1.937	2.626	3.559
20	0.432	0.845	2.249	3.452	4.610	6.099
30	1.666	2.779	6.200	9.050	11.605	14.219
50	7.330	11.975	23.275	32.534	40.914	49.832
100	31.964	48.804	94.278	130.394	163.300	211.104
	EVA Film 360 µm
2	0.011	0.014	0.035	0.064	0.095	0.119
5		0.023	0.090	0.159	0.244	0.296
15	0.293	0.593	1.628	2.553	3.466	4.665
20	0.433	0.847	2.314	3.592	4.781	6.431
30	1.002	1.836	4.415	6.498	8.269	10.658
50	8.246	12.374	26.330	36.964	46.616	58.893
100	33.405	51.539	99.794	137.903	173.022	222.560
	PE Film 400 µm
2	0.009	0.017	0.045	0.075	0.112	0.171
5		0.029	0.118	0.186	0.258	0.370
15	0.229	0.438	1.302	1.957	2.648	3.628
20	0.364	0.694	1.920	2.946	3.942	5.363
30	0.725	1.437	3.406	5.057	6.414	8.283
50	6.713	10.843	21.695	30.187	37.708	48.176
100	31.249	47.867	90.866	124.468	153.042	193.910

EVA = ethylene vinyl acetate; PE = polyethylene.