Sub-Categories. 1  Anemometers (vane and hot-wire) Anemometers are used to measure airflow and volume at registers and in ducts. Vane anemometers measure airflow independent of the air density making them ideal for many applications where measurement without the need for corrections is desired.
1 1:99 diluted household bleach (mixing 10ml of bleach with 1litre of water) can be used for general household cleaning. 2  1:49 diluted household bleach (mixing 10ml of bleach with 0.5litre of water) is used to disinfect surfaces or articles contaminated with vomitus, excreta, secretions or blood.leach containing 5.25% sodium hypochlorite should be diluted as follows (demonstration short): 1:99 diluted household bleach (mixing 10ml of bleach with 1litre of water) can be used for general household cleaning.
If necessary, use detergents first and rinse thoroughly with water before using bleach for disinfection. As undiluted bleach liberates a toxic gas when exposed to sunlight, it should be stored in a cool and shaded place out of reach of children. Sodium hypochlorite decomposes with time. To ensure its effectiveness, it is advised to purchase recently produced bleach and avoid over-stocking.