Peracetic acid dosage

What is peracetic acid?

Peracetic acid (or peroxyacetic acid) is a powerful oxidant used as a broad-spectrum disinfectant. It is particularly effective against bacteria, yeasts, molds, spores, and viruses. This organic peroxide, derived from acetic acid and hydrogen peroxide, decomposes into non-toxic substances (acetic acid, oxygen, water), making it a popular solution for disinfecting without harmful residues.

It is found in many industrial sectors:

• Food industry: disinfection of surfaces, equipment, pipes, rinsing water
• Cosmetics and pharmaceutical industry: decontamination of production areas
• Disinfection of water or medical instruments
• Processing fruits, vegetables or eggs

Why measure peracetic acid?

The dosage of peracetic acid allows to control its residual concentration in solutions or on surfaces after application. It is essential for:

• Guarantee the biocidal effectiveness of the disinfectant treatment
• Avoid excesses that could cause corrosion, irritation or degradation of materials
• Respect regulatory usage thresholds (e.g. limits in rinsing water in the food industry)
• Check the conformity of batches of disinfectant products
• Ensuring the safety of operators and consumers

Peracetic acid control is often required by quality departments, audit standards (IFS, BRC, ISO 22000), or as part of HACCP self-monitoring.

What matrices can be analyzed?

The dosage of peracetic acid is carried out on a wide variety of matrices:

• Ready-to-use or concentrated disinfectant solutions
• Rinse or spray water after disinfection
• Surfaces in contact with food
• Cosmetic or pharmaceutical products in liquid formulation
• Environmental samples (waste water, effluents, etc.)

What analytical methods are used?

Several methods are available to accurately measure peracetic acid concentration:

• Redox titration (iodometry or permanganometry): classic, rapid method, suitable for routine monitoring
• HPLC (high performance liquid chromatography): a more specific and sensitive method, allowing the separation of peracetic acid from other components (acetic acid, H₂O₂)
• Colorimetric methods or reagent strips (for semi-quantitative use on site)
• Related standards: ISO 8897, internal methods validated according to ISO 17025 requirements

The choice depends on the level of precision sought, the type of sample and the regulatory context.

YesWeLab: your partner for peracetic acid analysis

At YesWeLab , we make it easier to carry out your analyses thanks to a network of certified and accredited partner laboratories (ISO 17025, COFRAC), selected according to your technical and regulatory constraints.

Our experts support you every step of the way:

• Choosing the analytical method suited to your matrix
• Definition of compliance thresholds
• Analysis of results and quality validation
• Providing a clear and actionable analysis report for your audits and regulatory filings

Our secure digital platform allows you to centralize all your analysis requests, track your projects in real time, and access your results wherever you are.

Need a reliable dosage of peracetic acid?

YesWeLab supports you in the quality control of your disinfectants, surfaces, and rinse waters to ensure safety, compliance, and effectiveness.
Contact our team today to get a quote or discuss your specific needs.