TXDY
P

PPM (Parts Per Million)

measurement

A unit of concentration equal to one part of solute per million parts of solution.

Definition

Parts per million (ppm) is a way of expressing very dilute concentrations. In disinfection, it usually refers to free available chlorine — for example, a 1,000 ppm chlorine solution contains 1,000 mg of chlorine per litre of water.

Why it matters

Every disinfection protocol specifies a target ppm. Under-dosing fails to kill pathogens; over-dosing wastes chemical, corrodes surfaces, and creates safety hazards.

Practical applications

PRO SolvTab™ CARE tablets are formulated to deliver a specific ppm in a fixed water volume, removing measurement error from the process.

Related terms

Related TXDY solutions

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