Ukubonisa umlingani
1. Ukusebenza kokungangeni manzi okungaphezu kuka-3,000 mmH2O ngaphansi kwezindinganiso zaseMelika (ASTM).
2. Ukuphefumula okungaphezu kuka-3,000 g/24h m2 ngaphansi kwezindinganiso zaseMelika (ASTM).
3. Yonke imithungo iboshwe ngetheyiphu.
4. Amaphakethe emiphetho angenazihlanganisi aneziphuphu ezingangeni manzi.