SIST EN ISO 18743:2015 PDF

Overview

EN ISO 18743:2015 / ISO 18743:2015 - "Microbiology of the food chain - Detection of Trichinella larvae in meat by artificial digestion method" - specifies a validated laboratory method for detecting Trichinella spp. muscle-stage larvae in meat from individual animal carcasses intended for human consumption. Adopted by CEN, this standard applies to both domestic and sylvatic species (for example pigs, horses, wild boar, walrus, bears) that can harbor Trichinella. The standard sets out the artificial digestion procedure (magnetic stirrer digestion is the reference method) used in food safety and veterinary testing programs. It does not provide species/genotype identification - molecular methods are required for that.

Key topics and technical requirements

The standard describes the full digestion assay workflow and related technical requirements without prescribing proprietary brands or specific parameter values beyond validated practice. Major topics include:

• Principle of the artificial digestion method for release of Trichinella muscle larvae from tissue.
• Sample collection, labelling and transport for individual carcasses and pooled samples.
• Sample preparation: chopping/blending/grinding of muscle tissue prior to digestion.
• Preparation of digest fluid and controlled digestion of the meat sample.
• Filtration and sedimentation procedures to concentrate larvae from digestate.
• Microscopic examination and verification of presumptive Trichinella larvae.
• Reagents and apparatus required for reliable testing (general laboratory-grade supplies and magnetic stirrer digestion equipment).
• Documentation, result expression and safety measures for laboratory practice.
• Guidance that the artificial digestion/magnetic stirrer method is considered the standard because of validation evidence; alternative methods can be used only if equivalence is demonstrated.

Applications and who uses it

EN ISO 18743:2015 is intended for use in:

• Regulatory and official control laboratories conducting carcass inspection and meat testing.
• Veterinary diagnostic labs and public health laboratories monitoring food safety for Trichinella spp.
• Slaughterhouses and meat-processing facilities implementing routine Trichinella detection programs.
• Research institutions validating or comparing detection methods. Practical benefits include standardized testing for prevention of human trichinellosis and harmonized results for trade and public health.

Related standards and guidance

• ISO 7218:2007 - general requirements for microbiological examinations
• OIE Manual of Diagnostic Tests and Vaccines (Chapter on Trichinellosis)
• International Commission on Trichinellosis (ICT) recommendations for digestion testing Note: species/genotype identification requires molecular assays (not covered by ISO 18743). Keywords: ISO 18743:2015, Trichinella detection, artificial digestion method, magnetic stirrer digestion, meat testing, food safety, carcass inspection.