Pharmeuropa: New Chapter 2.5.45 on Photoionisation Detectors published for Comments

In the latest issue of Pharmeuropa (37.1), a proposal for chapter 2.5.45. Photoionisation detectors for the detection of hydrocarbons/oils in gases has been released for public consultation.

The draft text discusses the use of photoionisation detectors (PIDs) in measuring hydrocarbons and oils, e.g. for environmental monitoring and ensuring air quality in compressed air systems. PIDs operate by ionizing hydrocarbons using ultraviolet (UV) radiation and measuring the resulting ionic current, which is proportional to the concentration of hydrocarbons or oils in the gas. The text outlines the operational, technical, and maintenance requirements for PIDs.

The draft text is structured into the following sections:

• 1. Principle
• 2. Equipment
• 3. Equipment performance
• 4. Procedure

The complete draft is available on the Pharmeuropa website (registration required). The deadline for comments on Pharmeuropa 37.1 is 31 March 2025.