AXIO | Proficiency Testing schemes 2026
Rounds per Year
Sample Code Matrix
Analytes
PT-AR-34 PT-AR-35 PT-AR-36 PT-AR-37 PT-AR-38
Impinger solution (Stack emissions) Impinger solution (Stack emissions) Impinger solution (Stack emissions) Impinger solution (Stack emissions)
Volume; Sulfur dioxide Volume; Hydrogen fluoride Volume; Hydrogen chloride
2 2 3 3 4
Volume; Ammonia
Metals and fly ash on quartz filter 47mm diameter (Stack emissions)
AR062 – As, Cr, Cu, Pb, Ni, V; AR063 – Sb, Cd, Co, Mn, Se, Tl; AR065 – As, Cr, Cu, Pb, Ni, Tl; AR066 – Sb, Cd, Co, Mn, Se, V
PT-AR-39 PT-AR-40
Dust rinsing solution (Stack emissions) Dust on glass fibre filter 47mm diameter (Stack emissions)
Total solids
2 2
Dust analysis (mass of solids)
PRODUCT HIGHLIGHT PT-AR-08 - Formaldehyde
Formaldehyde can be found in the atmosphere from several sources, both natural (e.g. forest fires) and from manufacturing. The levels in the air are required to be monitored as high or long-term exposure can cause health issues. The current UK workplace exposure limit (WEL) for formaldehyde is two parts per million (2ppm), time weighted average over eight hours. The short-term limit (averaged over ten minutes) is 2ppm. 50-70 participants per round 4 Rounds per Year
The full range and availability of test materials and analytes is determined on an annual basis and may be added or removed. For accredited and non-accredited status, plus the most up to date sample data, please see the current application form/scheme description for this scheme.
78 lgcstandards.com/AXIO
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