Looking for calibrated hardness reference blocks to support your material testing? UPI Laboratories Europe BV offers high-quality, traceable blocks for Rockwell, Vickers, Brinell, and Knoop hardness testing methods. All blocks are produced and calibrated under ISO/IEC 17025 RvA accreditation to guarantee accuracy, compliance, and international recognition.
Hardness reference blocks are essential tools for verifying and calibrating hardness testing equipment. At UPI Laboratories, we specialize in the calibration and supply of premium hardness reference blocks that ensure accuracy and traceability.
Our blocks are manufactured using homogeneous base materials, finished with either a mirror or matte surface, and laser-engraved for clear identification. They are dual calibrated according to ISO and ASTM standards.
As an ISO/IEC 17025 RvA-accredited laboratory, UPI Laboratories guarantees that every hardness reference block is calibrated using advanced techniques and verified through rigorous quality control.
Different hardness testing methods require specific reference blocks. UPI Laboratories provides calibrated blocks tailored to Rockwell, Vickers, Brinell, and Knoop testing methods.
Rockwell hardness testing is widely used in the metalworking industry and beyond. Our Rockwell blocks are suitable for all standard Rockwell scales and are tested according to ISO 6508 and ASTM E18 standards. We use diamond or carbide ball indenters to verify hardness values and ensure consistency. The results are traceable and reliable, offering immediate readouts without the need for additional microscopic evaluation.
The Vickers method offers versatility and can be applied to materials with varying hardness levels. Our Vickers blocks are calibrated using diamond pyramid indenters and are available for a wide range of loads. These blocks are ideal for general material evaluation, quality control, and research applications. Each block is clearly marked with its Vickers hardness value and full calibration is included.
Brinell hardness testing is often used for castings and forgings, particularly where grain structures are too coarse for other testing methods. Our Brinell blocks are tested using carbide ball indenters under various load conditions. Each block meets ISO and ASTM specifications, ensuring accurate and reproducible results across a range of industrial applications.
Knoop test blocks are ideal for microhardness testing of thin materials, coatings, and edges. Our Knoop blocks are calibrated under ISO/IEC 17025 conditions and comply with ISO and ASTM standards. The asymmetric indentation shape of the Knoop test requires highly precise calibration, which is ensured through our advanced quality control processes.
UPI Laboratories Europe BV is committed to providing reference materials that support the most demanding calibration processes. Every hardness reference block is tested and calibrated in accordance under the oversight of the RvA, the Dutch Accreditation Council. The RvA is a member of ILAC, ensuring global recognition and acceptance of our calibration results.
Our hardness reference blocks come with dual calibration: both ISO and ASTM standards are met, giving you the flexibility and assurance needed in international environments.
Whether you’re working within regulated industries such as aerospace or automotive, our blocks are a trusted solution.
Our customers rely on us for traceable, repeatable, and long-lasting solutions for their material testing needs.
At UPI Laboratories, we support your goal of achieving the highest level of measurement accuracy. If you’re ready to upgrade your calibration process with reliable hardness reference blocks, we’re here to help.
Contact us today for more information or download our brochure to explore the available options. Our team is ready to assist with expert advice, fast delivery, and world-class calibration tools.
