Calibration Weights & Accessories
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Calibration Weights & Accessories

Calibration Weights & Accessories – Certified Weights for Accurate Balance Calibration

Our calibration weights and accessories are essential tools for ensuring the accuracy, reliability, and compliance of laboratory balances and industrial scales. Whether you're performing routine calibrations, GLP-compliant verifications, or ISO certification, we offer a complete range of calibration solutions that meet international standards.


We provide a wide selection of calibration weights and related accessories, including:

  • Class E1 / E2 Calibration Weights: For high-precision analytical balances and microbalances, suitable for metrology laboratories.

  • Class F1 / F2 Calibration Weights: Ideal for calibrating precision balances in laboratories, pharmaceutical, and food testing environments.

  • Class M1 / M2 / M3 Calibration Weights: Designed for industrial and general-purpose scale calibration.

  • Individual and Set Weights: Available in individual weights (1 mg to 20 kg) or complete sets with storage cases and gloves.

  • Calibration Accessories: Includes weight handling tweezers, gloves, weight brushes, and weight lifters to ensure safe and contamination-free operation.


All calibration weights are made of high-grade stainless steel or cast iron, with mirror-polished or anti-corrosive finishes. Options are available with or without traceable calibration certificates from accredited labs.


Applications include pharmaceutical labs, research institutions, food processing facilities, environmental testing labs, and industrial production lines — any environment where weighing accuracy and regulatory compliance are critical.


Ensure your balances and scales stay accurate and compliant. Contact us today to find the right calibration weights and accessories for your specific equipment and quality system.


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ZHEJIANG TOP INSTRUMENT CO.,LTD., as a subsidiary of TOP Cloud agri, is a high-tech enterprise specializing in the R&D, manufacturing, sales for laboratory equipments, and provision of comprehensive laboratory solutions.

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