Analytical services

Are you concerned by the quality of your water, by problems of corrosion, scale or by the proliferation of Legionella?

Magnus’ analytical facilities include spacious laboratories : state-of-the-art analytical, mcrobiological and R&D laboratories.  Magnus’ laboratories are situated at the company’s head office and are independant from other laboratory firms.

Magnus provides a full range of analytical services to a wide range of problems :

  • Water analysis;
  • Deposit analysis;
  • Cleaning simulations (descaling, degreasing and derusting) and biocides performance simulations;
  • Metallurgical expertise;
  • Legionella detection by DNA and culture analysis;
  • Performance follow-up of treatment programs against corrosion, scaling and bacterial growth;
  • Research and development.

Legionella water analysis

Magnus provides professional analytical services for identifying legionella and its concentrations in water samples.

The proliferation of the Legionella bacteria in a cooling system is a complex problem. Contamination of a domestic water system with the Legionella bacteria is generally associated with several factors. Defective operating conditions, poor water circulation, and inadequate temperature control can be the cause. Lack of maintenance and the presence of scale, corrosion or biofilm residues can also stimulate the growth of this microorganism.

Fighting against legionella means using biocides, from which the efficiency against bacteria, algae and protozoa has been demonstrated, but also simultaneously attacking the main factors favoring their growth. This involves the prevention of biofilm formation and preventing any corrosion and scaling phenomenon. Treatments must be optimized regularly by monitoring several physio-chemical and microbiological indicators and their performance must be verified. These indicators provide relevant information on the level of treatment control, but there is no correlation with the concentrations of Legionella which must, therefore, be measured.

Since infectious doses are not well-known, maintaining a low concentration of Legionella in facilities for people at risk is the best way to minimize the risk of legionellosis.  To effectively manage these facilities at risk, it is important to conduct regular monitoring to get a rapid response in case of Legionella proliferation. The detection of legionella bacteria must be carried out in the laboratory using a standardized and specific method. Depending on the circumstances, a method by measuring DNA or development on culture area will be preferred.

The method by measuring DNA allows detecting and measuring the population of legionella in the water or in the biofilm by analyzing their DNA. This method gives a result within 24 to 48 hours. It is therefore an extremely powerful tool for the detection and rapid response, which facilitates the application of disinfection processes and limits the exposure during an outbreak.

The culture method is based on the development of bacteria on agar plates with several different types of treatments. It is grown on the culture media and can be counted efficiently after an incubation period of about 14 days. The culture method identifies more precisely the viability and virulence of the bacteria, important clinical information in some cases.

For more information on how to minimize legionella proliferation, visit our Legionella section.

Technical Audits

Performance audits done by our experts allow to put strategies in place to optimize existant water treatment programs. A scientific and methodological approach, using the best available monitoring devices on the market, can guide the decision on the best possible solution and validate recommendations.

Highest Acreditation standards

ELITE Program - Proficiency Certification

Magnus has received the proficiency certification for testing legionella in their laboratories, a certification better known as the ELITE Program of CDC.

This highly sought after certification is granted by the American CDC organization (Centers for Disease Control and Protection).

Although legionella bacteria live in a wide variety of freshwater habitats, they can be difficult to isolate.

Use of a suitable isolation protocol is critical for determining whether legionella are present in a sample and at what concentration. The ELITE program was created as a way for laboratories to test their legionella isolation techniques against standardized samples.

The ELITE Program certifies labs in the isolation of Legionella from water samples. Labs that perform adequately receive a Certificate of Proficiency that indicates that the lab’s procedures are consistent with federal recommendations and that they meet or exceed typical industry standards for recovery of Legionella. *

* Information extracted from CDC webite.

ISO 17025:2005 Certification

Magnus received its accreditation for performing legionella bacteria analysis in its microbiological lab, in accordance with the international ISO/IEC 17025:2005 standard. This certification issued by 'le Centre d’expertise en analyse environnementale du Québec' allows us to offer in-house detection analysis of the legionella bacteria, as required by the Quebec Building Authority (RBQ) regulation.

By performing this screening directly in our lab, we are able to support you more efficiently in your maintenance program for cooling towers, as dictated by the RBQ.   

The detection analysis of Legionella pneumophila bacteria should be performed using a standardized and specific method by growth on culture medium, when restarting a cooling tower after winter, every 30 days during the period of operation and after an emergency decontamination resulting form the detection of more than one million CFU/L of Legionella pneumophila.

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