Antiseptics and Effects on Sensors (Portable Gas Detection Monitors)

A fast update:

With the recent concerns about the spread of H1N1 also known as swine flu, a number of customers have implemented the use of antiseptic wipes and/or cleaning products within their factories to prevent the transfer of viruses and bacteria.

These products typically contain an alcohol based solvent as well as an antibacterial/antiviral agent.

Electrochemical and catalytic bead sensors are designed to be highly sensitive to easily oxidized species (such as alcohols) and if they are kept in close proximity to antiseptic products, or indeed are handled by someone who has recently used such a product, they are likely to respond and generate an output. This could manifest itself as an exaggerated baseline signal or prolonged recovery time.

Furthermore, a large number of sensors are provided in plastic housings, and while the materials used have been selected to be highly chemically inert, there is a small risk that exposure to high levels of alcohols for a long period may permanently damage them.

We would therefore advise all customers who are using such products in their factories to ensure that additional care is taken when handling sensors and instruments. If possible, we recommend:

Antiseptic products are removed from any areas where sensors are stored or used

If antiseptic products are being used to sterilize workers’ hands, allow sufficient time for the alcohol solvent to evaporate.