Quality in Control

Microbiological laboratories should be able to receive reliable analysis without much overhead. A microbiologically analyst must be able to focus on the primary activities, for example analysis of the sample material. The analyst should be supported in a logical and simple manner by quality control. By using modern information technology process control and quality assurance are designed smarter and more effective.

One of the most important quality control in a laboratory is the first-line control. With the internal quality control, the analyst checks if his or her activities comply with the requirements. An effective and widely used way to apply first line control is the use of microbiological reference material. We support our customers with microbiological reference materials and a Control Chart application to validate results. Both products work in close harmony together. Our microbiological reference materials are reliable and of high quality.

Certified Reference Materials

Biosisto produces and delivers microbiological certified reference materials. These reference materials can be used for quality control, validation of methods and training purposes in food, dairy and water laboratories. Biosisto her reference material can contain one organism (single-strain) or multiple organisms (multi-strain). A set of standard reference materials are regularly produced and can generally be delivered within 5 working days. Due to the flexible production process, Biosisto can produce custom made reference materials. These custom made reference material can be certified and adjusted to your specific requirements.

Biosisto produces in accordance with ISO 17034 and are accredited by the Dutch Accreditation Council (RvA). The accreditation can be found under number P001 at www.rva.nl. The custom made reference material is part of Biosisto her flex-scope, to improve your laboratory process in term of efficiency and effectivity. Biosisto is looking forward to be a partner in your quality control and improvement process.

BiosistoChart, Global Proficiency Charts

The results of the analysed reference materials are generally plotted on a Control Chart. The Control Chart “tells” whether the process is stable or unstable. This refers to the signal value, when there is a variation which is caused by special causes and situations. Each accredited laboratory has a Control Chart for each individual test. In cases of uncontrolled quality, a corrective action must be taken and documented. The individual chart provides information about the average and the standard deviation of the results of investigation.

BiosistoChart is an application for recording and capturing results of primary controls. Here, the NEN 6603 standard is leading to record and monitor the performance of the analytical methods. It is possible to compare all your company locations in one Control Chart and in a Box & Interval plot graph.  It’s also possible to compare (anonymous) your results with other companies who use the same Microbiological Reference material from Biosisto. Proficiency testing  by means of interlaboratory comparisons is made possible by transformation and interpretation of the first line control data. 


The use of reference materials from Biosisto offers our customers the following advantages:

  • Quality: Use of certified property values in accordance with international analysis standards
  • Stable: Proven homogeneous, stable material and traceable strains to the source
  • Usability: Easy to use material; Defrost and use
  • Availablity: Fast availability from stock
  • Consultancy: Use of knowledge and support from Biosisto based on years of experience in the production of (certified) reference materials, laboratory analyzes and processes