M1 Class Analytical Weights Box (1 mg to 1 kg) – As per OIML R111

Manufactured strictly in accordance with OIML R 111-1 Class M1, this analytical weight set supports dependable medium-accuracy calibration for analytical balances, precision scales, and structured quality control systems. From 1 mg micro denominations to a full 1 kg reference, each weight is produced within controlled permissible error limits to ensure uniform and repeatable performance.

Complete Mass Range for Structured Calibration

This comprehensive set eliminates calibration gaps by covering:

• Fine milligram denominations for analytical and semi-micro balances
• Intermediate values for precision verification
• A full 1 kg standard for higher-capacity calibration

Organized within a secure protective case, the box simplifies routine verification and reduces operational downtime.

Precision Manufacturing for Long-Term Stability

Under our M1 category, every weight is engineered with strict quality discipline:

• Precision CNC machining for accurate geometry
• Controlled surface finish to minimize contamination
• High-grade stainless steel for corrosion resistance
• Optimized density characteristics
• Low magnetic susceptibility to avoid electronic interference

Each unit is verified to meet OIML-defined tolerances, ensuring consistent calibration performance.

Compliance, Certification & Traceability

We understand that calibration must be documented. This analytical weight set is supplied with:

• ISO/IEC 17025 traceable calibration certificate
• Documented measurement deviations
• Stated uncertainty values
• Compliance references aligned with OIML R111

This ensures your laboratory or facility remains audit-ready and aligned with international metrology standards.

Built to Strengthen Your Calibration Chain

Manufactured for durability and protected in a custom storage case, this set offers long service life, dimensional stability, and reliable handling.

At Masse Präzise, we do not simply manufacture weights — we build measurement confidence.

Contact us today to request technical guidance or a quotation and ensure your calibration process is supported by standards you can trust.