Under no circumstances should filled confidential waste sacks be stored in areas accessible to the public or unauthorised persons, such as in corridors;
Ni ddylai sachau gwastraff cyfrinachol wedi’u llenwi gael eu storio o dan unrhyw amgylchiadau mewn mannau y mae modd i’r cyhoedd neu bobl heb awdurdod gael mynediad iddynt, er enghraifft, coridorau.