Nähragar nach TrinkwV und § 64 LFGB (NTV)

Equivalent to the Drinking Water Regulation and §64 LFGB (formerly § 35 LMBG) and the DIN EN ISO 12780

Shorthand symbol: NTV
Item number: 40-1176
Format: Petri Dish, 90mm
Colour: ivory-coloured
Storage conditions: Dry, in closed bag, at 15-22°C
Shelf-life: 4 Months
pH: 7.4 ± 0.2 bei 25°C
Intented use and fields of application

Universal Nutrient Medium for the isoation and cultivation of fastidious microorganisms according to Drinking Water Regulations and § 64 LFGB (formerly § 35 LMBG). The nutrient medium formualtion is according to DIN EN ISO 12780.

Typical composition in g/l

in g per 1 Litre Nutrient Medium
Meat Extract1
Yeast Extract2
Sodium Chloride5
*Adjusted as required to meet performance standards

Microbiological quality control

The Microbiological Performance Test is carried out in accordance with the requirements of DIN EN ISO 11133.


Incubation Conditions: 44±4 Hours at 36±2°C; Inoculum Concentration: 80–120 CFU

OrganismType StrainSpecificationColony morphology
Escherichia coliATCC 8739/WDCM 00012>70%-
Bacillus subtilisATCC 6633/WDCM 00003>70%-

Microbial Contamination
Incubation Conditions: 5–7 Days, 20–25°C and 5–7 Days, 30–35°C

No microbial contamination

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