Ohaus 80780413 OIML F1 Weight Set, 100 g - 1 g

An OIML Class F1 weight set is designed for precision calibration of balances and scales, especially in laboratory and industrial environments. It is commonly used to verify accuracy and maintain traceability for precision balances with readability down to milligram levels.

This set typically includes a range of calibrated weights such as 100 g, 50 g, 20 g (x2), 10 g, 5 g, 2 g (x2), and 1 g, providing a total set capacity of approximately 210 g. This allows flexible calibration across multiple measurement points.

Ohaus F1 weights are manufactured from high-grade stainless steel or specialized alloys (such as Troemner Alloy 8) to ensure low magnetic susceptibility, corrosion resistance, and long-term stability. This construction helps maintain consistent accuracy over time.

Class F1 weights offer tight tolerances and high accuracy, making them suitable for calibrating precision balances and for routine verification. While not as strict as E1/E2 classes, F1 provides an excellent balance of precision and cost-effectiveness for most lab applications.

These weights are designed with a polished surface for contamination visibility, a tapered neck for easy handling, and recessed bottoms to reduce wear. The set is typically supplied in a protective case to prevent damage and maintain calibration integrity.