Final answer:
The incorrect statement about liquid chemical sterilants is that they are ineffective against bacterial spores. These sterilants are indeed effective against spores when used correctly and are suitable for items sensitive to heat.
Step-by-step explanation:
The statement concerning liquid chemical sterilants that is not true is: they are ineffective against bacterial spores. Liquid chemical sterilants are in fact designed to be effective against bacterial spores when used under the appropriate conditions. These sterilants are used especially for heat-sensitive items that cannot withstand high temperatures required in methods like autoclaving. Chemical sterilants require a long exposure time to ensure sterilization and may also be toxic, requiring careful handling and adequate safety measures during usage.
It's worth noting that high-level germicides are capable of killing vegetative cells, fungi, viruses, and even endospores, leading to sterilization. However, intermediate-level germicides and low-level germicides cannot kill all types of viruses and are ineffective against endospores. To achieve sterilization, a high-level germicide must be used for an extended period.