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E2 Class Analytical weight box 1mg to 200g Accuracy as per OIML R111

E2 Class Analytical weight box 1mg to 200g Accuracy as per OIML R111

Product Details:
These weights are of highest metrological accuracy class and used as primary reference standards for calibrating other lower class reference weights like E and blow classes , E class weights are integral /single piece monobloc type weights , E class weights have no method of adjustment. These weights are appropriate for calibrating high precision analytical balances with readability as low as 0.1 mg to 0.001 mg.

Specifications:

Design

Knob type , Integral/ Single-piece (monobloc) Wire/Bar

Density 

8000 (± 30) kg/m3

Material

High-grade non magnetic Austenitic stainless steel, SS-316

Number of weights

1mg to 200g(Total 23 Units) Nominal values of 1, 2, 2, 5, 10, 20, 20, 50, 100, 200, 200, 500 mg/g)

OIML Tolerance Class

E1/E2

Packing     

Packed in hard case aluminuim box

Nominal Range

1mg to 200g

Susceptibility X

< 0.02

Calibration certificate

Included standard manufacturing certificate and a calibration

certificate produced in accordance with OIML R 111-1:2004 and ISO

17025:2017 requirements.




E2 Class Analytical Weight Box – 1mg to 200g Calibration Weights by Massepräzise

We engineer ultra-precision weights for high-sensitivity analytical instruments. Our E2 Class Analytical 200g Weight Box, covering 1mg to 200g Calibration Weights, is manufactured for laboratories and calibration facilities that require the highest level of metrological accuracy. These weights are compliant with OIML R 111-1:2004 standards and come with a calibration certificate as per ISO 17025:2017, ensuring full traceability and compliance.

This weight set is ideal for calibrating high-precision analytical balances with readability from 0.1 mg down to 0.001 mg.

ISO 17025 and OIML Certified Weight Sets for Analytical Balance Calibration

The E2 Class Analytical 200g Weight Box includes a full range of 1mg to 200g Calibration Weights used as primary reference standards in laboratories. Designed for the highest metrological accuracy class, these E-class weights are commonly used to calibrate lower class reference weights such as F1, F2, and below. Their unmatched stability and precision make them essential for certified calibration labs, pharma R&D facilities, and metrology institutions.

Key Features:

  • Design: Knob type for gram weights and wire/bar construction for milligram weights
  • Structure: Integral / Single-piece (Monobloc) – No method of adjustment, ensuring maximum long-term stability
  • Material: SS-316L Austenitic Stainless Steel, non-magnetic and corrosion-resistant
  • Density: 8000 (± 30) kg/mÂł
  • Susceptibility (X): < 0.02 – Perfect for environments with sensitive magnetic conditions
  • OIML Class: E1 / E2 compliant
  • Calibration: Supplied with standard manufacturing certificate and ISO 17025-accredited calibration certificate
  • Packaging: Delivered in a robust aluminium hard case with anti-static foam for protection

Set Composition – 1mg to 200g Calibration Weights (Total: 23 Units)

Milligram Weights: 1 mg, 2 mg (x2), 5 mg, 10 mg, 20 mg (x2), 50 mg, 100 mg, 200 mg (x2), 500 mg

Gram Weights: 1 g, 2 g (x2), 5 g, 10 g, 20 g (x2), 50 g, 100 g, 200 g (x2)

Each weight is precision-machined and mirror-polished to ensure surface consistency and dimensional accuracy.

Applications of E2 Class Analytical 200g Weight Box

  • Calibration of analytical balances with readability of 0.001 mg to 0.1 mg
  • Used as primary reference standards in metrology and pharmaceutical labs
  • Suitable for quality control departments, research facilities, and national calibration labs
  • Enables hierarchical calibration of lower-class weight sets (F1, F2, M1)

Why Choose Massepräzise?

  • Decades of expertise in mass metrology manufacturing
  • Precision-engineered E2 Class Analytical 200g Weight Boxes designed to meet stringent lab requirements
  • 100% traceability and certification under OIML and ISO standards
  • Customized packaging and configurations available for specific industry applications
  • Trusted by calibration labs, pharma companies, and testing institutes across India and abroad
Read More

The E2 Class Analytical 200g Weight Box is a complete set of 1mg to 200g calibration weights manufactured in accordance with OIML R111-1:2004 and ISO 17025:2017 standards. These high-precision weights are used as primary reference standards for calibrating analytical and semi-micro balances with readability ranging from 0.1 mg to 0.001 mg. Each weight is machined from high-grade SS-316L non-magnetic stainless steel to ensure accuracy, corrosion resistance, and long-term stability.

The 1mg to 200g Calibration Weights set includes a total of 23 precision weights, covering both milligram and gram denominations. Milligram weights: 1 mg, 2 mg (x2), 5 mg, 10 mg, 20 mg (x2), 50 mg, 100 mg, 200 mg (x2), 500 mg. Gram weights: 1 g, 2 g (x2), 5 g, 10 g, 20 g (x2), 50 g, 100 g, 200 g (x2). Each weight is mirror-polished, precisely machined, and securely stored in an aluminium hard case with anti-static foam lining for maximum protection.

The E2 Class Analytical 200g Weight Box is primarily used for: Calibrating high-precision analytical balances with micro-level readability (0.001 mg to 0.1 mg). Serving as primary reference weights in laboratories for verifying F1, F2, and lower class standards. Ensuring measurement traceability in pharmaceutical, metrology, research, and quality control laboratories. These E2 calibration weights guarantee the highest metrological accuracy for critical measurement environments.

According to OIML R111-1:2004, the permissible tolerance for E2 Class Weights ranges from ±0.03 mg (for 1 mg) up to ±0.3 mg (for 200 g). This extremely low tolerance ensures that the E2 Class Analytical 200g Weight Box meets the precision demands of analytical laboratories, calibration centers, and pharmaceutical industries.

Every E2 Class Analytical 200g Weight Box includes: A Standard Manufacturing Certificate, confirming compliance with manufacturing specifications. An ISO 17025-accredited Calibration Certificate, produced in accordance with OIML R111-1:2004. This documentation ensures traceability, accuracy, and compliance with international calibration standards.

Proper handling is essential for maintaining precision. Always handle E2 Class Analytical Weights using clean gloves or forceps to avoid contamination. Store the weights in their protective aluminium case when not in use. Keep the set in a temperature-stable, dust-free, and low-humidity environment. Following these steps ensures that your 1mg to 200g Calibration Weights maintain long-term metrological integrity.

The 1mg to 200g Calibration Weights are widely used in: Pharmaceutical and biotech laboratories for analytical testing. Calibration and metrology labs for traceable mass verification. Research and academic institutions for precision experiments. Quality control departments in manufacturing and R&D setups. Their compliance with OIML R111 and ISO 17025 makes them ideal for regulated industries requiring verifiable accuracy.

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