Description
Analytical Weight Box – F1 Class
Precision Calibration Weights for High-Accuracy Lab Instruments
F1 Class weight box ensures ultra-precise calibration for analytical balances, scientific instruments, and laboratory weighing equipment where accuracy up to 0.001 g is essential.
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✔ Certified F1 OIML Class calibration weights
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✔ Suitable for analytical & microbalances
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✔ Stainless steel construction with anti-corrosion finish
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✔ Supplied with traces & calibration certificates
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✔ Anti-static packaging for long-term stability
Ideal Applications
For industries & labs where precision is mandatory:
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Pharmaceutical laboratories
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Chemical & research institutes
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Calibration labs & metrology facilities
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Quality control departments
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Educational institutions
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Jewelry and precious metal testing centers
Ensures weighing results remain accurate, reliable & audit-ready.
Why F1 Class?
Because regular weights cause:
❌ Calibration drift
❌ Balance instability
❌ Failed audits and measurement errors
F1 Class provides:
✔ Tighter tolerances than F2/M1/M2 classes
✔ Perfect for high-resolution (0.001g – 0.01g) balances
✔ Traceability to national/international standards
What’s Inside the Weight Box
Available as complete sets or individual weights:
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Full OIML F1 Class Set:
1 mg to 200 g / 1 kg (model dependent) -
Includes:
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Anti-tweezer forceps
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Cotton gloves
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Soft cleaning brush
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Protective lined storage case
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Each weight is designed for minimal air buoyancy error.
Technical Specifications
| Feature | Details |
|---|---|
| Accuracy Class | OIML F1 |
| Material | Non-magnetic SS 304 / SS 316 |
| Density | High density for stability |
| Nominal Range | 1mg → 1kg sets available |
| Surface Finish | Mirror-polished anti-corrosion |
| Packaging | Wooden / ABS shock-proof box |
| Certification | Calibration certificate included (NABL traceable available) |
Weights maintain dimensional and mass stability through years of use.
5️⃣Certification & Compliance
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OIML R111 standards
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NABL traceable calibration (optional upgrade)
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Full documentation for audit & QA purposes
Compliant with pharma, chemical and export standards.
Why Choose Punit Instrument
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Expert provider of precision metrology tools
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Supply to leading pharma and R&D facilities
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Options for annual re-calibration & AMC
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Quick availability of spare components & accessories
Accuracy backed by 30+ years of weighing expertise.
When to Choose This Weight Box
✓ You use 0.001 g or higher resolution balances
✓ Precision is directly linked to product quality
✓ Your lab undergoes frequent audits
✓ Calibration traceability is required
If using 0.01g – 1g accuracy equipment — F2 or M1 classes might be sufficient.
Care & Handling Guidelines
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Always use forceps — no direct hand contact
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Store in anti-static clean environment
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Clean with provided soft brush before calibration
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Avoid moisture & temperature fluctuations
Proper handling preserves accuracy for years.
FAQs
Q. Does it come with calibration certificates?
✔ Yes — with optional NABL traceable certificate.
Q. Can we purchase individual weights?
✔ Available in both sets and single pieces.
Q. Can it be used in analytical instrument servicing?
✔ Yes — highly recommended for precise calibration.
Q. Is a wooden case available?
✔ Yes — premium wooden or ABS case options.
