CHROMAGAR ORIENTATION, dehydrated agar, 5l [RT412]


Valid Article

Former Code(s): SLASZBE0470 SLASMISC301 SLASZFR0301
CE marking: declaration that the product meets EU standards for health, safety, and environmental protection. The CE marking indicates that the product may be sold freely in any part of the European Economic Area, regardless of its country of origin.
W0104010101 - Dehydrated culture media (dcm)
European Medical Device Nomenclature (EMDN) is the nomenclature of use by manufacturers when registering their medical devices in the EUDAMED database. EMDN is characterised by its alphanumeric structure that is established in a seven-level hierarchical tree.
The order of this product needs to be justified and is only acceptable under certain conditions.
Thermosensitive codes are defined for storage and transportation temperature requirements of the products.
OC subscriptions: included in supply or field order tools (e.g. UniField)
SC subscriptions: included in supply or field tools
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)

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Chromogenic agar supports the growth of most bacteria and is used for the isolation and differentiation of pathogens. It contains a chromogenic mix that allows differential colour changes to be produced, aiding the identification of bacteria.


CHROMagar™ Orientation is a non-selective chromogenic culture medium intended for use in the qualitative direct detection, differentiation and presumptive identification of uropathogens to aid in the diagnosis of urine tract infections.

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Approximate formula after reconstitution (per liter):

  • Peptone and yeast extract 17 g
  • Chromogenic mix 1 g
  • ​Agar 15 g

Technical specifications

Dehydrated medium, powder beige.

Packaging & Labelling

Bottle of 165 g.

One bottle can be used to realise 250 tests (20 ml/test)

Instructions for use

  • Follow the recommendations of the package insert.
  • Do not use non homogenous media.
  • Properly close the bottle after use.
  • After preparation, store in the dark and protect from dehydration before use.

Please consult the “Bacteriology laboratory procedures and resources” available online via the Laboratory working Group sharepoint page: Laboratory Procedures and Resources

For offline access, contact your laboratory advisor

Precautions for Use

All biological samples must be considered as potentially infectious and handled with the usual precautions (compulsory wearing of gloves, hand washing, etc.).


  • Store between 15°C and 30°C
  • Preserved from humidity
  • Keep away from heat and direct sunlight
  • Do not use after expiry date
  • After preparation, store the media in the dark before use. The prepared media plates can be kept 1 day at room temperature or up to 2 months between 2°C and 8°C, protected from light, dehydration and microbial contamination

(Cf Introduction: Thermosensitive products)

Waste management

After use, sterilize the cultures and all contaminated material. Please contact your watsan referent for advice on proper disposal.

MSF requirements

Reserved to bacteriology programmes.

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