Why measure phosphine (PH₃) during fumigation?

Phosphine (PH₃) is an effective fumigant against pests in grain, pulses and dried-produce stores. Used correctly it cuts product loss; used without monitoring, its high toxicity can cause respiratory and neurological injury or death. ESA Elektronik supplies and calibrates pump-type PH₃ analysers for fumigation sites.

Benefits

• Targets insects, larvae, mould and microbes in stored produce.
• Can treat large warehouse volumes when distributed correctly.
• Reduces repeat fumigation cost when the dose and dwell time are right.

Hazards

• Highly toxic by inhalation; headache, nausea, breathlessness, loss of consciousness and death are possible.
• May be colourless and odourless, so smell is not a reliable warning.
• High concentrations can be fatal in a short time; corrosion of metals is also a risk.

Why measure it

To keep workers below occupational limits, to prove the fumigation worked, to avoid under- or over-dosing, and to meet H&S and international rules. “We smelled it, so it is fine” does not work for PH₃.

Pump-type PH₃ detectors

An aspirated instrument draws a sample through a hose into silos, containers and holds. Electrochemical cells, ranges such as 0–5 / 0–50 / 0–100 ppm, audible-visual-vibe alarms and a field-ready body are typical. The unit still needs a bump test and periodic TURKAK-traceable calibration.

Our laboratory is at Ivedik OSB Ada Plaza (AB-0319-K). Brand-model, range (ppm) and quantity are enough for a quote.

Request a calibration quote · TURKAK gas calibration · 0312 385 52 81 · 0533 659 91 60