1. What is a weighing tolerance? How do I define my weighing tolerance?

What accuracy is required to guarantee the quality of your weighing task? And what plus/minus range on results would still be acceptable for quality or regulatory requirements? These answers define your weighing tolerance.

Weighing tolerance can depend on factors such as cost of material, applicable regulations, safety concerns related to weighing errors, environmental impact of wrong measurements, and more. An example: 100 kg weighed with a +/- of 1 kg is a 1 % weighing tolerance. Typical tolerances are from 0.1 % to 5 %.

Watch the video to learn more about weighing tolerances!

Find out more with our guide

2. What is a safety factor? How can I find out what safety factor to apply?

A safety factor ensures reliable results. It accounts for changing external influences such as vibrations, drafts, operators, etc. For normal, stable conditions, METTLER TOLEDO recommends a safety factor of at least 2 for laboratory and 3 for industrial environments. For unstable weighing conditions (e.g. a fume hood or harsh production environment) a higher safety factor should be applied.

Watch the video to learn more about safety factors and which safety factor is right for you!

Find out more with our guide

3. What documents and details do I get with a GWP® Recommendation?

Our free GWP® Recommendation service will result in a report showing:

  • your specific details and requirements,
  • a device that meets your needs, and
  • verification that the device is in line with your accuracy requirements.

A GWP® Recommendation Summary Report compares multiple devices.

Please note that actual device performance in its place of use can only be verified by calibration once it is installed. 

Learn more: installation for laboratory balances

Learn more: installation for industrial scales

Learn more about calibration

4. Is a GWP® Recommendation important if I do not work in a regulated industry (like pharma or biotech)?

Regardless of industry, weighing is considered a critical control point for many laboratory and industrial weighing processes. It impacts product quality and can cause waste, rework or overfilling.

It is important to pay specific attention to weighing, as weighing is often the beginning of your value chain. Any error at the weighing stage can become magnified in downstream analysis or processing.

GWP® Recommendation helps you get rid of this risk by finding the balance or scale that fits your specific needs and requirements. 

5. I have a unique weighing application. Can a GWP® Recommendation still help me?

Your GWP® Recommendation is a direct output of your conversation with our weighing experts. Help us understand what you are weighing and how, and we will provide the best solution documented in a GWP® Recommendation report.