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Zwiebel COFRAC-Certified E2 Class Calibration Weight Set, 1 g to 500 g

UsedZWIEBELMass StandardsFrance

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Made in : Swiss Serial No : S2142270
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Specifications 3

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ZWIEBEL
New/Used
Used
Detail
Made in : Swiss Serial No : S2142270

Product description

COFRAC-certified E2 class calibration weights (1 g–500 g) in cobalt alloy/stainless steel for precise lab balance calibration.

This Zwiebel COFRAC-certified calibration weight set comprises 12 precision E2 class weights ranging from 1 g to 500 g. The set includes 1 g, 2 g, 5 g, 10 g, 20 g, 50 g, 100 g, 200 g, and 500 g weights, designed for accurate calibration of analytical balances and precision scales essential in biotechnology labs and molecular diagnostics.

Key features include:

  • Material Composition: Durable cobalt alloy and stainless steel for corrosion resistance and long-term stability
  • Certification: COFRAC (French accreditation) ensures traceability and compliance with international mass standards
  • Class E2: Suitable for routine calibration in analytical and precision weighing applications
  • Storage: Delivered in a protective wooden case minimizing contamination and mechanical damage
  • Applications: Widely used in bioprocessing workflows, biopharmaceutical production pipelines, and synthetic biology research requiring reliable mass standards

This weight set is critical for maintaining accuracy in laboratory balance calibration, making it a valuable tool for scientists and researchers involved in cell imaging, clinical diagnostics, and biomedical engineering fields. Its precise mass standards contribute to enhanced reproducibility and quality assurance in molecular cloning workflows and other advanced biotechnology applications.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 19 October 2026