M Class Laboratory weights (M1 and M2) are essential for various industrial and commercial weighing applications. These weights belong to the OIML accuracy hierarchy and are positioned below F Class weights in terms of precision. While F Class weights are used for high-accuracy measurements, M1 and M2 weights are ideal for general weighing tasks where ultra-fine precision is not required.
Construction & Key Features
M Class laboratory weights are typically made from stainless steel, or brass, ensuring durability and resistance to environmental factors. A distinctive feature of these weights is their adjusting cavity, which allows fine-tuning of mass during calibration. This cavity is then sealed with lead, ensuring stability and compliance with accuracy standards. In contrast, F Class weights lack this lead-sealed cavity, making it a key differentiating factor.
These weights are also called as medium accuracy class weights or commercial weights.
Applications of M1 & M2 Weights
M1 and M2 weights are widely used in industrial settings, commercial trade, and laboratory applications where moderate precision is needed. They are suitable for:
- Calibration of industrial scales used in manufacturing and production.
- Retail and commercial weighing, including markets and packaging industries.
- Agricultural and laboratory use, where standard precision is sufficient.
These weights offer a balance between affordability and accuracy, making them a preferred choice for many businesses.
For high-quality M Class Laboratory weights, browse our collection to find the perfect match for your weighing needs.
OIML Class M3 – Economical weights for general laboratory, industrial, commercial, technical and educational use. Typically fabricated from cast iron.
All weights with M1, M2 class type are listed in the link below :