About CompaLab

   CompaLab organises proficiency testing programs - also named PTP or interlaboratory comparisons or round robin tests - along ISO 13528 and ISO/IEC 17043 standards in order to evaluate the capacity of the participants to perform identified tests. The scope of these proficiency testing programs includes the tests on metals and metallurgy, particularly on steels, ferrous materials, copper alloys and coated steels (painted and galvanised steels). Any laboratory holding equipment and human resources necessary to perform these tests may participate, regardless of its legal status.

For more details, see About CompaLab.

 

What is a proficiency testing program (PTP) ?

   A proficiency testing program (PTP) or interlaboratory comparison (ILC) allows to evaluate the reliability of laboratories services, by sharing results of a same test, performed on a same product by all the participating laboratories. Furthermore, uncertainties on test results may be computed from results of these interlaboratory comparisons.

For more details, see What is an ILC

 

Register to participate to a proficiency testing program (PTP)

Several possibilities are offered to register : see all details at Register to participate

 

Proposed proficiency testing program (PTP)

In 2020, 85 proficiency testing schemes (interlaboratory comparisons) are proposed in the following areas:

 

Type of test

Details

Chemical analysis of metals and ferro-alloys

Chemical analysis on Non alloyed steel, Low alloyed steel, High alloyed steel, Stainless steel, Copper alloy, Aluminium alloy, Ferro-manganese, Ferro-silicon, Ferro-chrome, Ferro-titanium, Ferro-vanadium, Ferro-niobium

Metallography

ISO 643 ASTM E112 Determination of grain size on Non alloyed steel, Austenitic stainless steel
ISO 2624 ASTM E112 Determination of grain size on Copper alloy
ISO 945-1 ISO TR 945-2 ASTM A247 Classification of graphite on Cast iron
ISO 3887 ASTM E1077 Depth of decarburization on Low alloyed steel
ISO 4967 ASTM E45 Method A, D, E EN 10247 Assessment of inclusions on Non alloyed steel, Austenitic stainless steel

Heat treatments

ISO 18203 ISO 2639 Case hardening depth on Low alloyed steel
ISO 642 ASTM A255 Jominy hardenability on Low alloyed steel

Intergranular corrosion of stainless steels

ISO 3651-2 Met. C ASTM A262 Practice B ASTM G28 Practice A Intergranular corrosion Streicher
ISO 3651-1 ASTM A262 Practice C Huey intergranular corrosion
ISO 3651-2 Met. A ASTM A262 Practice E Strauss intergranular corrosion
ASTM A262 Practice F Intergranular corrosion ASTM A262 Pract. F
ISO 3651-2 Met. B Intergranular corrosion ISO 3651-2 met B
ASTM G48 Met. A Intergranular corrosion ASTM G48 met A

Roughness

ISO 4287 ISO 4288 Roughness on Galvanised steel

Tests on zinc coatings

ISO 1460 ISO 1463 ISO 2178 ISO 3882 ASTM B658 Galvanizing thickness

Tests on liquid paints

ISO 2431 Viscosity
ISO 2811-1 ISO 2811-2 ISO 2811-3 ISO 2811-4 Density
ISO 3251 Non-volatile percentage
EN 1767 ASTM D2621 Infrared analysis

Tests on paint coatings

ISO 2808 ASTM B658 ASTM D1186 Coating thickness
ISO 2409 ASTM D3359 Met. B Cross-cut test
ISO 4624 Pull-off test
ISO 6272-1 Impact resistance
ISO 1519 ASTM D522 Bending on mandrel
ISO 1522 Pendulum damping test
ISO 1520 Cupping test
ISO 20567-1 Met. C ISO 21227-2 Stone chip impact test
ISO 2812-2 Immersion in water
ISO 6270-1 ISO 6270-2 Exposure to moisture
ISO 2813 Gloss
ISO 4628 ASTM D610 ASTM D714 ASTM D1654 Evaluation of ageing
ISO 7724 Parts 1, 2 & 3 ISO 11664 Parts 1 & 4 Colorimetry
ISO 2409 ASTM D3359 Met. B Cross-cut test
ISO 2808 ASTM B658 ASTM D1186 Coating thickness
ISO 2813 Gloss
ISO 7724 Parts 1, 2 & 3 ISO 11664 Parts 1 & 4 Colorimetry

Tests on zinc and paint coatings

ISO 9227 ASTM B117 Salt spray test
ISO 22479 ISO 6988 ISO 3231 ASTM G87 Sulphur dioxide test with moisture condensation (Kesternich test)

Tests of plastic materials

ISO 4892-2 ISO 16474-2 Exposure to a xenon lamp
ISO 4892-3 ISO 16474-3 ISO 11507 UV Exposure
ISO 868 ISO 7619-1 ISO 2039-2 ISO 2039-1 ISO 2039-2 ASTM D2240 ASTM D785 Hardness
ISO 178 ASTM D790 Tensile test
ISO 527-1 ISO 527-2 ISO 527-3 ASTM D638 Bending test
ISO 4892-3 UV Exposure

Charpy impact tests

ISO 148-1 Charpy test (3 energy levels)
ASTM E23 ASTM A370 Charpy test
ISO 148-1 Charpy test at low temperature

Hardness tests

ISO 6506-1 ISO 6507-1 ISO 6508-1 ASTM E10
ASTM E92 ASTM E18 ASTM A370 Brinell, Vickers and Rockwell Hardness on Low hardness metal, High hardness metal
ISO 6507-1 ASTM E92 ASTM E384 Vickers hardness under low load on Low hardness metal

Tensile tests

ISO 6892-1 Tensile test on Non alloyed steel
ASTM E8 ASTM E8M ASTM A370 Tensile test on Non alloyed steel
ISO 6892-1 Tensile test on Flat steel, Austenitic stainless steel, Non alloyed steel, Aluminium alloy
ISO 898-1 Tensile test on Screws
ISO 3108 ASTM A931 EN 12385 ISO 12076 Tensile test on Cable
ISO 6892-2 ASTM E21 Tensile test at high temperature on Non alloyed steel
ISO 6892-3 Tensile test at low temperature on Non alloyed steel

Mechanical tests

ISO 7438 ASTM E290 Bending test on Non alloyed steel, Flat steel
ISO 7799 Reverse bend test on strips on Flat steel
ISO 8492 Flattening test on Tube
ISO 1099 Axial fatigue on Non alloyed steel
ISO 12106 Axial fatigue under controlled strain on Non alloyed steel
ISO 12135 ISO 12737 ASTM E399 ASTM E1820 Determination of K1c on Non alloyed steel
ASTM E1820 ISO 12135 Determination of J1c on Low alloyed steel

Tests on welded joints

ISO 6520-1 ISO 5817 Evaluation of weld joint defects
ISO 4136 Transverse traction

Tests on concrete reinforcing steels

ISO 15630-1 Traction, geometry and linear mass on Cold rolled reinforcing steel, Hot rolled reinforcing steel
ISO 15630-2 Shear test on Welded fabric for concrete
ISO 15630-1 Fatigue test on Hot rolled reinforcing steel
ISO 15630-3 Traction, geometry and linear mass on Prestressing strand for concrete
ISO 15630-3 Relaxation test on Prestressing strand for concrete
ISO 15630-3 Stress corrosion test on Prestressing strand for concrete
ISO 15630-3 Deflected tensile test on Prestressing strand for concrete

Tests of admixtures for concrete

EN 480-6 EN 1767 Infrared Analysis on Admixture for concrete
EN 480-8 Dry material content on Admixture for concrete
EN 480-10 Chloride content on Admixture for concrete
EN 480-12 Alkali content on Admixture for concrete

Tests of sealants

Properties and resistance to ageing

 

More information on the proposed programs ?

see Proposed proficiency test programs