Calibration Weights

Weights Manufactured As Per International Recommendation

OIML R 111-1
Weights of classes El, E2, Fl, F2, MI, MI-2, M2, M2-3 and M3

Maximum permissible errors for weights (± 6m in mg) as per OIML R 111 - 1

India’s leading manufacturer and suppliers of Laboratory Weights which ranges from milligram to Kilograms, all made under one roof.

Small weights up to 1 mg
Large weights up to 50 kg
Special forms such as bent-wire and sheet milligram weights
Special Markings
Boxes and Cases - Aluminium, Plastic & Wooden as per use

Archerchem Instruments follows stringent quality measures in accordance with OIML R 111-1 2004 recommendations. The Calibration procedures are derived from OIML R 111-1 2004 and intermediate checks are performed at regular intervals with OIML R 76 recommendations.

OIML Standard Weights -
Class E1

OIML Standard Weights -
Class E2

OIML Standard Weights -
Class F1 & F2

Limits of Polarization

The magnetization M, expressed in terms of the polarization, pO M, should not exceed the values given

Limits of Magnetic Susceptibility

Maximum Value of Surface Roughness

Ambient Temperatures During Calibration

Humidity

Accuracy differentiation between E1, E2, F1 Class Weights
(Example 100g) Maximum Permissible error for 100g Weight ( + mg )
E1 - 100g + 0.05mg = 99.99995 g to 100.00005 g
E2 - 100g + 0.16mg = 99.99984 g to 100.00016 g
F1 - 100g + 0.5mg = 99.99950 g to 100.00050 g

Accessories

Choose from a comprehensive range of accessories for professional weight handling, including ergonomics tweezer, brush, weights handles (SS), weight container and types of gloves

Archerchem Weights Calibration services

Archerchem Instruments provides accurate and reliable calibration services as per ISO/IEC 17025 recommendations. The most efficient mass comparators and weighing balances are employed to give you accurate and best comparative results

Calibration Requirements of Test Weights

All though all precautions for maintaining the accuracy of weights at manufacturing level are observed, it is important to calibrate the weights through a reliable and authorised external/internal testing laboratory having traceability to national and international standards

Even when weights are handled with care, they experience wear and tear. Therefore it is important to recalibrate your routine test weights regularly. The frequency can be defined based on usage of the weights, storage conditions, handling, maintenance, operator skills and the criticality of your weighing process.