DEV Nähragar (DEV)

According to DIN 38411 § 64 LFGB.

Shorthand symbol: DEV
Item number: 60-1128
Format: Tube, 15ml
Colour: Light yellowish
Storage conditions: Dry, in closed bag, at 15-22°C
Shelf-life: 6 Months
pH: 7.3 ± 0.2 bei 25°C
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Intented use and fields of application

DEV Nutrient Agar is for the cultivation of bacteria in food and water. This culture medium complies with the requirements of DIN 38411 and according to § 64 LFGB.

Typical composition in g/l

in g per 1 Litre of Nutrient medium
Tryptic-digest of Peptone from meat10
Beef extractt10
Sodium chloride5

Microbiological quality control

The Microbiological Performance Test is carried out in accordance with the requirements BS EN ISO 11133:2014.


Incubation conditions: 44 ± 4 Hours at 36 ± 1°C; Inoculation concentration: 80–120 CFU

OrganismType StrainSpecificationColony morphology
Escherichia coliATCC 8739 / WDCM 00012≥ 70 %Yellowish/Cream colonies
Bacillus subtilisATCC 6633 / WDCM 00003≥ 70 %Yellowish/Cream colonie

Microbial Contamination

Incubation conditions: 5–7 days at 20–25°C and 5–7 days at 30–35°C

No microbial contamination

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