Mass Standards

Understanding Mass Standards

Mass standards, also known as calibration weights, are used to calibrate and verify the performance of weighing devices. They are manufactured in conformity with international standards such as the OIML and ASTM to provide exact and repeatable mass values. These devices are critical in quality control, scientific research, pharmaceuticals, and manufacturing where precise mass measurement is vital.

Key considerations when selecting mass standards include:

• Class or tolerance grade (e.g., E1, E2, F1, M1), reflecting measurement precision
• Material composition, typically stainless steel or other non-corrosive alloys for durability
• Weight range and increments suitable for the target balances or scales
• Certification and traceability to national or international standards
• Design features such as shape and finish to minimise handling errors

Mass standards are indispensable for ensuring the accuracy of weighing instruments used in laboratories or production environments. QuestPair offers a variety of second-hand and refurbished mass standards to support these critical needs.