| Reference | Designation/Description | Accredited assay |
Reference standards |
Product/ Material |
Comments (Administrator) |
|---|---|---|---|---|---|
| ACO.05 | Determination of mass per linear meter of steel prestressing bars | LNEC E 459 | Steel rods for prestressing | ||
| ACO.06 | Determination of the cross-sectional area of steel wires and strands for prestressing | LNEC E 452, LNEC E 453 | Steel wires and strands for prestressing | ||
| ACO.10 | Tensile test of prestressing steel wires, strands and bars | ISO 15630-3:2019 (section 5); ISO 6892-1:2019 | Prestressing steel wires, strands and bars | ||
| ACO.16 | Determination of the straightness of steel wires, cords and rods for prestressing | EN ISO 15630-3 (ponto 13.3.4) | Fios, cordões e varões de aço para pré-esforço | ||
| ACO.18 | Isothermal relaxation test | ISO 15630-3:2019 (section 9) | Prestressing steel wires and strands | 120 or 1000 hours. | |
| ACO.19 | Deflected tensile test | ISO 15630-3:2019 (section 12) | Prestressing steel - strand | ||
| ACO.20 | Axial force fatigue test | ISO 15630-3:2019 (section 10) | Pre-stressing-steel |