Vial for Bacteriological Test is a ready to use simple device, based on hydrogen sulphide indicator bacteria for carrying out bacteriological examination of drinking water. The Vial comes in paper strip form that is treated with media and is stored in glass bottle. The Vial produces hydrogen sulphide, which turns water sample black in case bacteria is present in the sample. Vial for Bacteriological Test comes in different packaging options to suit specific requirement.