Nutrient Agar according to Drinking Water Regulation and § 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
Ntv
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
Peptone5
Meat Extract1
Yeast Extract2
Sodium Chloride5
Agar12


Microbiological quality control

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


Productivity

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

Specification
No microbial contamination


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