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This standard provides standardized "horizontal" methods—meaning they apply across the entire food chain—for sampling techniques used to detect or count culturable microorganisms. It targets everything from pathogenic bacteria (like Listeria monocytogenes Salmonella ) to spoilage organisms like yeasts and molds. The "Environment" Definition:
Frequently used for neutralizing quaternary ammonium compounds.
Microorganisms collected from surfaces are often stressed or sublethally injured. To prevent them from dying or multiplying before analysis, the standard mandates:
[Insert Date] Category: Food Safety / Laboratory Standards Microorganisms collected from surfaces are often stressed or
Cleaning validation, primary agricultural production, carcass sampling, viral testing Explicit Regulatory Exclusions
Explicit instructions on the surface area size to be sampled based on the target microorganism (e.g., larger areas for pathogens, smaller areas for hygiene indicators).
: Similar to sponges, these are used for large-scale surface sampling in the food chain. Who Needs This Standard? Who Needs This Standard
ISO 18593 specifies horizontal methods for sampling of surfaces using contact plates, swabs, and friction swabs. Unlike "vertical" standards that apply to one specific product (e.g., milk or meat), a horizontal method applies across the entire food chain—from farm to fork.
Downloading the is the first step toward defensible environmental monitoring. Whether you are using contact plates for smooth stainless steel or swabs for a cracked rubber door gasket, following this horizontal method ensures your data is recognized globally.
(e.g., Equipment frames, exterior pipes) milk or meat)
: Because surface microbial counts can be inconsistent, the standard is primarily used for trend analysis , helping labs identify if a facility is getting cleaner or riskier over time. Key Sampling Techniques
ISO 18593 is not a standalone document. It works in concert with:
The implementation of ISO 18593 offers several benefits to food and animal feed manufacturers, including:
Agricultural and farm-level surface collection falls under ISO 13307 .
: Adherence to an ISO standard can be a requirement for export to certain markets or for certification against schemes such as the Global Food Safety Initiative (GFSI) benchmarks.