General Information
The 2021 ILC (interlaboratory comparisons) program includes chemical analyses of metals and ferroalloys, physical tests (metallography, decarburization and heat treatments, intergranular corrosion tests, determination of the roughness of a surface), tests on liquid paints (viscosity, non volatile percentage and volumetric mass, infra-red spectrometry), test on organic or inorganic coatings (thickness, gloss, colorimetry, resistance of the film), aging tests (salt spray test, Kesternich test, water immersion, xenon lamp, UV), mechanical tests (Charpy impact test, Brinell, Rockwell and Vickers hardness tests, several types of tensile tests at ambient temperature or high temperature, bending test and rebend test, tube flattening test, fatigue test), tests of mechanics fracture, tests on welded joints, tests on bolts, tests on steels for concrete, on welded mesh, prestressing steels for concrete, tests on plastic material, tests on admixtures for concrete, tests on sealants (properties and ageing).
Schedule 2021
In order to reduce the number of samples to be processed at the same time by participants, the year is divided into 3 groups:
| Group | 1 | Longterm tests | 2 |
| Registration deadline | 15/03/2021 | 15/03/2021 | 30/06/2021 |
| Date of shipment of samples | 05/06/2021 | 05/06/2021 | 05/09/2021 |
| Deadline for carrying out the tests and providing the results | 31/08/2021 | 31/10/2021 | 31/10/2021 |
| Date of delivery of reports | 15/10/2021 | 15/12/2021 | 15/12/2021 |
Note: After the deadline, registrations are only accepted within the limit of availability of samples
In addition to the assessment of the bias and repeatability, the participation to ILC organised by CompaLab provides an individual estimate the uncertainties of your test results.
At last, for participants who need their results very quickly, some samples which properties are known through the results of former ILC are also available.
See list of proposed ILC, per ILC references
See list of proposed ILC, per test method
See list of proposed ILC, per standard
See list of proposed ILC, per product
List of proposed ILC, per ILC references
Click on the series to get to the related ILCs.
Click on the reference of the ILC to get to the description of it.
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Testing area |
Reference |
Description |
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Chemical analysis of a non alloyed steel
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a low alloyed steel
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a high alloyed steel
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a stainless steel
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a copper alloy
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of an aluminium alloy
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a ferro-manganese
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a ferro-silicon
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a ferro-chrome
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a ferro-titanium
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a ferro-vanadium
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Chemical analysis of metals and ferro-alloys |
Chemical analysis of a ferro-niobium
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Determination of the grain size and of the content of non metallic inclusions of a non alloyed steel
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Metallography |
Determination of the grain size and of the content of non metallic inclusions of an austenitic stainless steel
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Metallography |
Determination of the grain size of a copper alloy
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Metallography |
Graphite classification of cast irons
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Metallography |
Determination of decarburization depth
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Determination of the case hardening depth
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Heat treatments |
Hardenability test by end quenching (Jominy test)
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Test of resistance of a stainless steel to intergranular corrosion (Streicher test)
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Intergranular corrosion of stainless steels |
Test of resistance of a stainless steel to intergranular corrosion (Huey test)
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Intergranular corrosion of stainless steels |
Test of resistance of a stainless steel to intergranular corrosion (Strauss test)
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Intergranular corrosion of stainless steels |
Test of resistance of a stainless steel to intergranular corrosion (ASTM A262 Practice F)
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Intergranular corrosion of stainless steels |
Test of resistance of a stainless steel to intergranular corrosion (ISO 3651-2 Met. B)
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Intergranular corrosion of stainless steels |
Test of resistance of a stainless steel to pitting and crevice (ASTM G48 Met. A)
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Determination of the roughness parameters of a metallic surface
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Determination of thickness of a zinc coating
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Determination of properties of a liquid paint
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Determination of thickness, gloss and colorimetric parameters of a paint coating
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Tests on paint coatings |
Cross cut test of a paint coating
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Tests on paint coatings |
Pull-off test for adhesion of a paint coating
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Tests on paint coatings |
Impact resistance testing of a paint coating
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Tests on paint coatings |
Bending test (cylindrical mandrel) of a paint coating
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Tests on paint coatings |
Pendulum damping test on a paint coating
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Tests on paint coatings |
Cupping test of a paint coated metal
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Tests on paint coatings |
Stone chip impact resistance of a paint coating
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Tests on paint coatings |
Determination of resistance of a paint coating to water immersion
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Tests on paint coatings |
Determination of resistance to humidity of a paint coating
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Salt spray test of coated and non coated steels
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Tests on zinc and paint coatings |
Sulfur dioxide test with condensation of moisture (Kesternich test) of coated and non coated steels
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Resistance to xenon lamp exposure (Paint coating and plastic material)
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Tests of plastic materials |
Resistance to UV exposure (Paint coating and plastic material)
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Tests of plastic materials |
Hardness test on plastic material
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Tests of plastic materials |
Tensile test on plastic material
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Tests of plastic materials |
Flexion test on plastic material
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Tests of plastic materials |
Density, ash content, water content on plastic material |
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| Tests of plastic materials | DSC-X-PL | Calorimetric analysis (DSC) on plastic material Standard(s) of reference: ISO 11357-1 ASTM D3418 Other related standards: ISO 11357-2 ASTM D3418 ASTM E1356 ISO 11357-3 ASTM D3418 ASTM E793 ISO 11357-4 ASTM E1269 ISO 11357-6 ASTM D3895 ISO 11357-7 ASTM E2041 ISO 11357-8 Price: 300 € Price if online payment: 240 € Approximate weight: 1 kg Registration deadline: Pre-registration |
| Tests of plastic materials | TG-X-PL | Thermogravimetric analysis (TG) on plastic materials Standard(s) of reference: ISO 11358-1 ASTM E1131 ASTM E2550 ISO 11358-2 ASTM E1641 ISO 11358-3 Price: 300 € Price if online payment: 240 € Approximate weight: 1 kg Registration deadline: Pre-registration |
| Tests of plastic materials | TMA-X-PL | Thermomechanic analysis (TMA) on plastic materials Standard(s) of reference: ISO 11359-1 ASTM E831 ASTM D696 ASTM E228 ISO 11359-2 ISO 11359-3 Price: 300 € Price if online payment: 240 € Approximate weight: 1 kg Registration deadline: Pre-registration |
| Tests of plastic materials | FTIR-X-PL | Infrared analysis (FTIR) on plastic material Standard(s) of reference: - Other related standards: ISO 19702 ASTM E1262 ASTM E168 ISO 4650 Price: 300 € Price if online payment: 240 € Approximate weight: 1 kg Registration deadline: Pre-registration |
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Charpy impact pendulum test at ambient temperature (low energy)
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Charpy impact tests |
Charpy impact pendulum test at ambient temperature (medium energy)
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Charpy impact tests |
Charpy impact pendulum test at ambient temperature (high energy)
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Charpy impact tests |
Charpy impact pendulum test at ambient temperature (ASTM - medium energy)
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Charpy impact tests |
Charpy impact pendulum test at -50°C of a non alloyed steel
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Charpy impact tests |
Charpy impact pendulum test at ambient temperature (KU2 - medium energy)
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Charpy impact tests |
Charpy impact pendulum test at ambient temperature (KU8 - medium energy)
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Brinell, Vickers and Rockwell hardness tests of a metal (low hardness)
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Hardness tests |
Brinell, Vickers and Rockwell hardness tests of a metal (high hardness)
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Hardness tests |
Low load Vickers and Knoop hardness tests
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Hardness tests |
Rockwell hardness tests of a metal (Infrequent scales)
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Tensile test of a machined test piece (test pieces machined by the participants)
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Tensile tests |
Tensile test of a machined test piece (test pieces machined by CompaLab)
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Tensile tests |
Tensile test of a machined test piece (ASTM)
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Tensile tests |
Tensile test of a flat steel
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Tensile tests |
Tensile test of an austenitic stainless steel
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Tensile tests |
Tensile test of a pipe
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Tensile tests |
Tensile test of a wire
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Tensile tests |
Tensile test of a wire rod
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Tensile tests |
Tensile test of a flat piece of aluminium alloy
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Tensile tests |
Tensile test of fasteners made of steel
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Tensile tests |
Tensile test of a steel wire rope
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Tensile tests |
Tensile test at 500°C of a non alloyed steel
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Tensile tests |
Tensile test at -150°C of a non alloyed steel
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Bending test of a flat steel
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Mechanical tests |
Reverse bend test on strips
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Mechanical tests |
Flattening test of a metallic pipe
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Mechanical tests |
Stress controlled axial fatigue test on steel
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Mechanical tests |
Strain controlled axial fatigue test on steel
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Mechanical tests |
Determination of K1c on non alloyed steel
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Mechanical tests |
FM-X-J1c |
Determination of J1c
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Geometry of welded joint
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Tests on welded joints |
Transverse tensile test on welded joints
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Tensile test, geometry and linear mass of a cold rolled concrete reinforcing steel
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Tests on concrete reinforcing steels |
Tensile test, geometry and linear mass of a hot rolled concrete reinforcing steel
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Tests on concrete reinforcing steels |
Determination of the shear force of a welded fabric
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Tests on concrete reinforcing steels |
Fatigue test of a concrete reinforcing steel
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Tests on concrete reinforcing steels |
Tests of couplers for reinforcing bars
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Tests on concrete reinforcing steels |
Tensile test, geometry and linear mass of a concrete prestressing steel
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Tests on concrete reinforcing steels |
Relaxation test of a concrete prestressing steel
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Tests on concrete reinforcing steels |
Stress corrosion test of a concrete prestressing steel
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Tests on concrete reinforcing steels |
Deflected tensile test of a concrete prestressing steel
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Tests on admixtures for concrete
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Tests on sealants
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Tests of sealants |
Ageing tests on sealants
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Additional information
Costs of transportation
Transportation costs are computed taking into account the approximate weight of the samples and the country where the samples must be delivered.
Note: if two shipments are required (corresponding to Series 1 and Series 2), prices are calculated separately for each shipment and the amount due is the total of the two.
Note: If additional sendings are required (e. g. paper documents), these sendings must be handled by the participant.
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Total weight (kg) |
France (métropole) |
Europe |
France (DOM-TOM), |
Other country |
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1 |
10 |
20 |
20 |
30 |
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2 |
15 |
25 |
30 |
45 |
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5 |
20 |
35 |
45 |
80 |
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10 |
25 |
50 |
70 |
150 |
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20 |
30 |
70 |
100 |
250 |
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40 |
60 |
140 |
200 |
500 |
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60 |
90 |
210 |
300 |
750 |
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80 |
120 |
280 |
400 |
1000 |
Discount for multiple participation
A single manual registration of one or several laboratories or of a laboratory to several ILC enables a discount in accordance with the following conditions:
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Total amount of the order, excepted transportation costs, before discount (€) |
Discount (%) |
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≥ 1000 |
10 |
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≥ 2000 |
20 |
The discount does not apply on transportation costs.
Fees for registration by internet are 20% lower than for manual registration. No discount on these prices is then available.