OIML Standard Weights Box Class E1-E2

Reference Accuracy for Advanced Calibration

In high-precision laboratories, accuracy is not estimated — it is verified. Limra Instruments manufactures OIML Standard Weights Boxes - Class E1 and Class E2 in India, engineered for ultra-precise calibration of analytical balances and high-resolution weighing instruments.
Designed according to international OIML recommendations, our E1 and E2 weight sets provide traceable, stable, and reliable mass standards for demanding metrology environments.

Understanding OIML Class E1 & E2 :

OIML (International Organization of Legal Metrology) defines strict tolerances for calibration weights.

• Class E1 :
  Class E2Used for calibration of ultra-micro and high-precision analytical balances.
  Offers extremely tight tolerance limits and superior surface finish.
• Class E2 :
  Suitable for calibration of high-precision laboratory balances and as reference standards for F1 class weights.

Limra Instruments manufactures both classes with strict adherence to precision machining and finishing standards.

Manufactured for Metrology Excellence :

Our OIML standard weights are produced using:

• High-grade non-magnetic stainless steel
• Mirror-polished surface finish
• Controlled density material
• Precision mass adjustment techniques

Each weight is individually verified for dimensional and mass stability.

Features of Limra OIML Weights Box :

• Class E1 and E2 tolerance compliance
• Mirror-polished stainless steel construction
• Laser marking for identification
• Protective wooden / aluminum storage box
• Anti-static and corrosion-resistant finish
• Supplied with handling accessories (tweezers, gloves as required)
• Individual weight cavity protection

The storage box is designed to protect weights from dust, humidity, and mechanical impact.

Applications :

Limra OIML Standard Weights Boxes are widely used in:

• NABL-accredited laboratories
• Pharmaceutical quality control labs
• Research institutions
• University science laboratories
• Calibration service providers
• Industrial metrology departments

They serve as primary or secondary reference standards depending on application.

Precision Manufacturing Process :

Every set undergoes :

• Controlled machining
• Fine mass adjustment
• Surface finishing
• Tolerance verification
• Stability testing

Only weights meeting strict internal quality benchmarks are assembled into the final box.

Available Configurations :

Limra Instruments offers various combinations such as:

• 1 mg to 100 g sets
• 1 mg to 200 g sets
• 1 mg to 500 g sets
• Customized combinations as per laboratory requirements

Custom configurations can be developed based on client specifications.

Storage & Handling Protection :

To maintain calibration integrity:

• Each weight is stored in precision-cut cavities
• Anti-moisture lining protects internal surfaces
• Secure locking system ensures transport safety

Proper storage helps preserve long-term mass stability.

Why Choose Limra Instruments?

• Indian manufacturer with precision engineering expertise
• OIML-compliant tolerance manufacturing
• High-quality stainless steel construction
• Reliable and repeatable calibration standards
• Customizable weight set configurations
• Dedicated technical support

We focus on delivering mass standards that laboratories can depend on.

Trusted OIML E1 & E2 Weights Box Manufacturer in India :

If your laboratory demands uncompromised calibration accuracy, Limra Instruments offers dependable OIML Class E1 and E2 Standard Weights Boxes designed for precision and long-term reliability.
Contact us today to discuss your calibration requirements and receive a customized quotation.

Technical Specifications :