Standard Operating Procedures


Several National Reference Laboratories and Pathology Laboratories are currently building or developing their Quality Management System based on ISO 17025 Standard ( General requirements for the competence of testing and calibration laboratories). Some of them are seeking for accreditation by their respective accreditation bodies. Some of these laboratories, and more particularly those in the last countries joining the European Union, are asking for standardised procedures.

Several pathologists having already some experience in the field of Quality Management are presently joining their efforts to produce Standard Operating Procedures. These SOPs can be used as templates by European laboratories and can help them when writing down their own documentation for Quality Management. These documents are available below in PDF files.


  • Sample processing in the context of mollusc mortality events (1st edition, 2020)

 application/pdf SampleProcessing_1


  • Diagnosis by histo-cytopathology of Bonamia spp. in flat oysters Ostrea spp. (5th edition, 2013)


application/pdf Bonamia sp. v5


  • Diagnosis by histo-cytopathology of Marteilia spp.  in the flat oyster Ostrea edulis and the mussels Mytilus edulis and M. galloprovincialis (2nd edition, 2009)


application/pdf Marteilia sp. 2


  • Diagnosis by histopathology of Perkinsus sp. in molluscs (1st edition, 2009)


application/pdf Perkinsus sp. 1


  • Diagnosis by histo-cytopathology of Mikrocytos sp. in oysters (2nd edition, 2010)


application/pdf Mikrocytos sp. 2


  • Diagnosis by histopathology of Haplosporidium sp. in oysters (1st edition, 2009)


application/pdf Haplosporidium sp. 1


  • Molluscs processing for diagnosis by histology (3rd edition, May 2011)



application/pdf Histology Process 3

  • Koehler illumination system for the microscope (1st edition, 2009)


application/pdf Microscope setting


Molecular biology

  • Bonamia spp detection by Polymerase Chain Reaction and species characterisation by Restriction Fragment Length Polymorphism (2nd edition, May 2019)


application/pdf Bonamia PCR-RFLP 2

  • Bonamia sp.detection and characterization by in situ hybridization (ISH) (1st edition, May 2013)

application/pdf Bonamia HIS v1

  • Bonamia ostreae and Bonamia exitiosa detection by Real time Polymerase Chain Reaction (1st edition, May 2019)

application/pdf B.ostreae and B.exitiosa RT PCR

  • Marteilia refringens detection and characterisation by Polymerase Chain Reaction- Restriction Fragment Length Polymorphism ( 3rd edition, December 2011)

application/pdf Marteilia PCR-RFLP_3


  •  Marteilia refringens detection and typing by Real time Polymerase Chain Reaction (2nd edition, Mars 2020)

application/pdf Real time PCR for the detection and typing of M. refringens 2

  • Marteilia refringens and Bonamia sp. detection by Real time Polymerase Chain Reaction (1st edition, April 2017)

application/pdf Real time PCR Marteilia refringens and Bonamia sp. 1

  • Marteilia refringens detection and characterization by in situ hybridization (ISH) ( 3rd edition, September 2011)

application/pdf Marteilia ISH-3

application/pdf OsHV-1 RTPCR_1

  • Vibrio aestuarianus detection by Real Time Polymerase Chain Reaction (2nd edition, October 2015)

application/pdf Vibrio aestuarianus detection by RT PCR

  • Vibrio splendidus and V. aestuarianus detection by Real Time Polymerase Chain Reaction (1st edition, October 2013)

application/pdf Vibrio splendidus and V. aestuarianus RT PCR

Other techniques

  • Quantification of Perkinsus sp. infection intensity using Ray’s Fluid Thioglycolate Medium (RFTM) Method (1st edition, February 2011)

application/pdf Perkinsus RFTM 1

  • Isolation of predominant bacteria in marine molluscs (1st edition, July 2015)

application/pdf Isolation of predominant bacteria in marine molluscs

If you cannot open the Pdf files, click here to get Adobe Reader

Quality management and Accreditation

Diagnosis of mollusc diseases by histology or by using molecular biology tools (PCR, HIS) is performed under a quality assurance system since 2003. The EURL for mollusc diseases is accredited by the Cofrac (Comité français d'accréditation)  for the diagnosis by histo-cytopathology of Bonamia sp., Marteilia sp., Perkinsus sp. and Mikrocytos sp. in molluscs (bivalves and gastropods) since October 2009.

Accreditation n° 1-2160,

Scope available on