ISO 11731

Enumeration of Legionella

Posted - Author Annemarie
Recommended CRM for process control
  • Wild strain
Process control CRM-LPN.BH - BCYE Process control CRM-LPN.BH - BCYE+AB Process control CRM-LPN.BH - MWY
-
BCYE agar
  • WDCM 00107
Performance testing CRM-LPN.00107BL - BCYE

PR ≥ 0,7

BCYE - cys
  • WDCM 00107

no growth

GVPC / BCYE+AB / MWY
  • WDCM 00107
Performance testing CRM-LPN.00107BL - BCYE+AB Performance testing CRM-LPN.00107BL - MWY

PR ≥ 0,5

  • WDCM 00106
Performance testing CRM-LAN.00106BL - MWY Performance testing CRM-LAN.00106BL - BCYE+AB

PR ≥ 0,5

  • WDCM 00009

Total inhibition

  • WDCM 00012

Total inhibition

CRM-LPN.00107BL and CRM-LAN.00106BL are designed for media control and are fully compliant with ISO 11731. The CRM-LPN.00107BL is not suitable for process control because the strain is unable to survive heat and acid treatment. Therefore a robust wild strain of Legionella pneumophila is used in the CRM-LPN.BH. This strain is still cultivable after heat and acid treatment and, thus, very suitable for process control of all the methods variety in ISO 11731.

Performance testing is accordance to ISO 11731:2017

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Quality in Control

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

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