Ukumuncwa kwamanzi amathawula esikhumbeni, izitsha nangaphezulu kwefenisha kuyenziwa empilweni yangempela ukuze kuhlolwe ukumuncwa kwawo kwamanzi, afanele ukuhlolwa kokumuncwa kwamanzi amathawula, amathawula obuso, amathawula ayisikwele, amathawula okugeza, amathawula neminye imikhiqizo yethawula.
Hlangana nezinga:
I-ASTM D 4772- Indlela Yokuhlola Ejwayelekile Yokumuncwa Kwamanzi Angaphezulu Kwendwangu Yethawula (Indlela Yokuhlola Okugeleza)
I-GB/T 22799 “-Umkhiqizo wethawula Indlela yokuhlola ukumuncwa kwamanzi”