Eau de ma douche (Légionnelles) View larger

Shower water (Legionella)

W-LEGIO

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Data sheet

Contexte de l'analyseLegionellosis is a serious pneumonia caused by bacteria (Legionella) which can develop in the domestic hot water network (DHW). Contamination occurs by inhalation of aerosols, for example in the shower.
RèglementationEstablishments Receiving the Public (ERP) are required to have an annual check by a COFRAC accredited laboratory (sampling + analysis). Note: For regulatory control of LES, the sampling must be carried out by an accredited laboratory COFRACInovalys performs the analysis of your domestic hot water in accordance with the official method appearing in the regulations in forceSee "Download" section below.
Liste des analyses réaliséesLegionella spp and Legionella pneumophila Analyzes carried out under COFRACAngers accreditation: Accreditation Tests N ° 1-5754 (list of locations and ranges available on www.cofrac.fr)

More info

Why do I have to test the water in my shower (Legionella)?

Analysis is a way of reassuring oneself about the "Legionella" risk that is regularly reported in the media.

Any network of Domestic Hot Water, private or collective, can be the place of proliferation of Legionella, especially if the temperature is below 55 ° C, if the installation is aging, if there is a large storage tank, or if the network is little used and if the shower heads are dirty or corroded.

Fortunately, the sensitivity of individuals is very variable towards this infectious agent and most people do not develop Legionellosis when they are in contact with contaminated water. Factors increasing this sensitivity are age (over 50), alcohol and tobacco use, immunosuppression.

Approximately 1000 cases of Legionellosis are declared annually in France (notifiable disease), of which almost 10% are fatal.

Description of the analyzes carried out by the laboratory

Legionella pneumophila: It is, in France, the species of Legionella responsible for the majority of cases of Legionellosis. French regulations only relate to this species.

Legionella spp: All Legionella species combined. In the absence of Legionella pneumophila, the presence of other Legionella remains an indicator of the risk of potential proliferation.

 

Inovalys performs the analysis in accordance with AFNOR NF T90-431, the only officially recognized method for controls. It requires at least 8 days of incubation (more if suspicion of presence). Any proposal to analyze Legionella in a shorter time means that another method is used.

There are faster methods, the results of which are not very comparable and more difficult to interpret. Inovalys is able, for example, to carry out Legionella counts if necessary by the Molecular Biology "PCR" method, with results in 72 hours, or even less in the event of a health crisis.

The sampling kit

Composition of the kit :

  • 500 ml sterile plastic sample bottle with neutralizer
  • insulated box
  • instructions for taking samples with precautions for use
  • prepaid return slip

Do you have a question before your direct debit is made?
Contact: 07 85 04 07 90

Your analysis results

Results sent by email within 10 to 15 working days after receipt at the laboratory

An expert from the laboratory can be reached by email and by telephone for any explanation of the results transmitted (contact details of the expert on the analysis report)

Download

Arrêté du 01/02/2010

Arrêté du 1er février 2010 relatif à la surveillance des légionelles dans les installations

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