Standard set with 23 pieces: 200g, 100g, 50g, 20g, 10g, 5g, 2g, 1g, 500mg, 200mg, 100mg, 50mg, 20mg, 10mg, 5mg, 2mg, 1mg
Complies With
OIML R-111 Standards (commonly used)
Intended Use
Lab calibration, educational, industrial precision work
Corrosion Resistance
Yes
Surface Finish
Mirror polished
Shape
Cylindrical and leaf/rectangular
weight box About
F1 class weight boxes are high-precision, non-magnetic stainless steel (SS304/SS316) calibration sets, compliant with OIML R-111 standards, used for calibrating analytical balances up to 5 decimal places. They are highly polished (mirror finish), feature cylindrical shapes with handles (1g1kg) or wire shapes (1mg500mg), and include a fitted protective box
Key Specifications of F1 Class Weight Boxes:
Accuracy: Meets OIML-R111 Standards with high precision and density.
Weight Range: Common sets include 1 mg to 200 g or 1 mg to 1 kg (23 pieces total).
Construction: Integral (solid) construction for smaller weights; 10g and above often have an adjustment cavity.
Accessories: Supplied in a fitted, protective wooden, plastic, or metallic box with tweezers and cleaning cloth.
Traceability: Typically accompanied by a NABL traceable calibration certificate (ISO 17025)
Precision and Quality You Can Rely On
Every weight in this box is manufactured from stainless steel and mirror-polished for corrosion resistance and longevity. The set adheres to OIML R-111 standards, ensuring accuracy and international compatibility for calibration, testing, and measurement tasks. Designed for precision in laboratory, pharmaceutical, and research settings.
Protective and Organized Storage Case
Your weights are safely stored in a robust hard carrying case, engineered with foam or slot inserts that prevent movement and abrasion. The protective design ensures each piece stays pristine, while the compact format facilitates easy transport and efficient workspace organization.
Versatile Applications Across Industries
This set supports a wide measurement range, from 1 mg to 200 g, to cover diverse calibration and balance verification needs. Ideal for laboratories, educational institutions, and quality control in industrial settings, the weight box provides users with reliable tools for both routine and advanced precision work.
FAQ's of weight box:
Q: How should I use this weight box for calibrating laboratory balances?
A: To calibrate a balance, manually select the required weight from the box and gently place it on the balance platform. Ensure the balance is at room temperature (5C to 40C), and that the weights remain free of fingerprints or debris to maintain accuracy.
Q: What makes these weights suitable for laboratory and industrial applications?
A: These weights are manufactured from corrosion-resistant stainless steel, have a mirror-polished finish, and meet OIML R-111 standards. Their F1/E2 class accuracy ensures precision, making them ideal for laboratory, pharmaceutical, and quality control uses.
Q: When should I perform calibration using this weight box?
A: Calibration is recommended before critical measurements, after relocating the balance, or if accuracy verification is needed. Regular calibration depends on usage frequency and application requirements, commonly performed daily, weekly, or monthly.
Q: Where are these weights best stored when not in use?
A: Weights should always be stored in the provided hard carrying case with foam or slot inserts. This prevents corrosion, damage, and contamination, ensuring consistent long-term accuracy.
Q: What is the process to clean and maintain the weights?
A: Handle weights with clean tweezers or gloves to avoid contamination. If necessary, lightly clean with a lint-free cloth. Do not use harsh chemicals; ensure the weights are thoroughly dry before returning them to the case.
Q: What is the primary benefit of the mirror-polished surface and stainless steel material?
A: The mirror finish resists corrosion and minimizes the risk of contamination from external particles. Stainless steel provides durability, ensuring that the weights maintain their integrity and accuracy over repeated use.
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