PRESTATION :
Costs - Air Inter-Laboratory Comparisons (ILC): sampling and analyses
For more than 25 years, Ineris has been organising Inter-Laboratory Comparisons (ILC) to improve sampling and analysis practices in the field of air: stack emissions, indoor air and workplace air. Inter-Laboratory comparisons enable laboratories to meet the accreditation requirement of monitoring their performance by comparing it with the results of other laboratories.
ILC on testing bench
On-line samplings and analyses
Compare sampling practices:
- test the conformity of materials and practices
- identify results dispersion sources
- propose improvements to benchmarks.
- Estimate individual performance level of participants and measurement methods.
Analysis laboratory
Analyses
- Improve the quality of analytical method implementation.
- Allow participants to judge the accuracy of their results in relation to reference values or assigned values and evaluate their
repeatability. - Obtain a satisfactory comparability of results coming from different laboratories responsible for monitoring releases
into air.
Stack emissions into the atmosphere
Capacity to accommodate 12 participants simultaneously.
- Real matrices: atmospheres generated from combustion gas (natural gas, light fuel-oil or biomass), with or without dust, that can be heated, moistened or spiked with various pollutants.
ILC in the testing bench:
- Evaluation of automatic methods (on-line): NOx , CO, CO2, O2, CH4, total COV, non-methane COV.
- Evaluation of manual methods (sampling): total dust, HCl, NH3, SO2, humidity.
Analytical ILC:
- HCl, NH3, SO2, HF, HAP, metals.
- Gas and particle phase: absorption solution, filters, resins,… exposed to combustion gases produced in the testing bench.
- Dust by gravimetry*: filter and rinsing solution.
Indoor air
Exposure chamber
Analytical ILC (diffusive sampling supports):
- Formaldehyde
- BTEX (benzène, toluene*, ethylbenzene*, xylenes*)
- Preparation of testing materials in an exposure chamber to simulate a real matrix.
- Atmospheres generated in controlled environmental conditions.
- Exposre concentrations close to indoor air guide values.
Workplace air*
- Concentration levels between 1 and 200% of OEL (French Occupational Exposure Levels).
Analytical ILC:
- Metals (Cd, Cr, Cu, Ni, Pb) - Mercury
- Inorganic acids (HF, HBr, HCl, H3PO4, HNO3, H2SO4)
- BTEX (benzene, toluene, ethyl benzene, xylenes)
- Acetaldehyde, formaldehyde
- Methanol - Ammonia
Inter-Laboratories Comparisons 2026 - COSTS
Documents relating to the tests can be downloaded from the Ineris website dedicated to Interlaboratory Comparisons:: | Ineris accreditation scope for the organization of CIL is available on:: COFRAC certificate n°1-2291. |