Yellow :: Infectious waste which requires disposal by incineration
Orange :: Infectious waste which may be treated to render it safe prior to disposal or alternatively it can be
incinerated
Yellow & Black :: Offensive/hygiene waste which may be landfilled.
Green :: Non Hazardous medicinal waste
Purple :: Cytotoxic or cytostatic waste which must be incinerated.
Black :: Domestic waste which does not contain sharps,medicinal waste or infectious materials.