International Standard Iso 18593 Microbiology Of Food And Animal Pdf Verified !link! -

| Method | Surface Type | Area to Sample | Verification Requirement | | :--- | :--- | :--- | :--- | | | Flat, smooth, dry surfaces (e.g., stainless steel) | 20–25 cm² | Plate must be flush with surface; no air bubbles. | | Swab Technique | Curved, irregular, hard-to-reach surfaces (pipes, crevices) | 25 cm² to 100 cm² (specified in protocol) | Use sterile templates; swab must be rotated 90° during sampling. | | Sponge Technique | Large, rough surfaces (conveyor belts, floors) | Up to 1000 cm² | Pre-moistened with neutralizing buffer. |

It provides detailed procedures for using four main sampling devices: contact plates, stick swabs, sponges, and cloths . | Method | Surface Type | Area to

Using a sterile sponge or cloth pre-moistened with a neutralizing buffer. | It provides detailed procedures for using four

Norovirus and hepatitis A analysis (covered by ISO 15216-1). Official Sources & Verification Official Sources & Verification