Ukubonisa umlingani
1. Ukusebenza okungangeni manzi okungaphezu kuka-3,000 mmH2O ngaphansi kwezindinganiso zaseMelika (ASTM).
2. Ukungena komoya okungaphezu kuka-3,000 g/24h m2 ngaphansi kwezindinganiso zaseMelika (ASTM).
3. Wonke imithungo inamathelisiwe.
4. Amaphakethe anomthungo ongabonakaliyo aneziphuphu ezingangeni manzi.