Accurate Weighing in 3 Simple Steps
With Good Weighing Practice™ (GWP®)
Weighing is an essential part of your company's value chain. Because it has a significant impact on the success of your business, your balances and scales need to be accurate and fit-for-purpose.
Are you sure your balance or scale is weighing accurately and is fit for its intended purpose? Do you know the simple way to achieve consistent quality, save costs and ensure compliance?
To help you answer ‘Yes’ to the questions above and support you in managing your entire weighing program, METTLER TOLEDO developed the globally recognized standard Good Weighing Practice (GWP). Here is how it works in 3 simple steps:
Step 1: Selection
Choose the Right Device
Select the balance or scale that meets your process requirements. Our free, easy-to-apply GWP® Recommendation service:
- Provides you with security before making a purchasing decision
- Documents that your new device meets your process requirements and is fit-for-purpose
- Recommends which test weights and services fit your needs
Step 2: Installation
Professional Qualification
Professional installation and qualification of your balance and scale:
- Ensures optimal weighing performance
- Improves productivity with correct device set-up
- Provides users with training to operate the device correctly
- Includes audit-proof documentation
Step 3: Calibration and Routine Testing
Maintain Accuracy
To ensure accuracy over time:
- Calibration assesses the performance of the weighing device by documenting the measurement uncertainty in use
- The GWP® Certificate proves that the device is fit-for-purpose
- GWP® Verification specifies a risk-based calibration and routine testing plan
About Good Weighing Practice
Good Weighing Practice (GWP) is a global standard that ensures consistent accuracy, quality and compliance in any weighing process. Established in 2007 by METTLER TOLEDO, GWP is a standardized methodology for the secure selection, calibration and operation of weighing equipment. GWP’s risk-based approach ensures that all your balances and scales meet your own accuracy requirements and adhere to quality standards such as ISO, GMP and GLP. It is applicable to new or existing weighing equipment from any manufacturer in any industry or workplace.
Good Weighing Practice is part of Good Measuring Practices by METTLER TOLEDO. It is a global program supporting you in quality assurance measures in laboratory and production environments.
FAQ:
- What are the advantages of Good Weighing Practice (GWP)?
- Why do I need Good Weighing Practice? Our balance or scale is a METTLER TOLEDO device. Shouldn’t it be accurate enough?
- Who should use Good Weighing Practice (GWP)?
- Do I need to start at step 1 or can I start at step 2 or 3?
- What do I need to consider if I need to comply with USP 41 regulations?
- What do I need to consider if I need to comply with ISO 9001:2015?
- What do I need to consider if I need to follow LFT regulations?
- What do I need to consider regarding weighing if I work in the food industry?
1. What are the advantages of Good Weighing Practice (GWP)?
METTLER TOLEDO created GWP to help you with your entire weighing program and support product quality, regulatory compliance and business expense reduction. We can help with everything from finding the right device for your specific needs to making sure that device remains fit-for-purpose and accurate over time. With our GWP program, it is possible to increase your quality, reduce costs and increase profit while successfully passing audits that involve weighing equipment.
2. Why do I need Good Weighing Practice? Our balance or scale is a METTLER TOLEDO device. Shouldn’t it be accurate enough?
All METTLER TOLEDO devices are accurate and of the highest quality. However, are you sure your balance or scale is the correct device for the intended purpose? If not, Good Weighing Practice services can help. Also, the weighing performance of even the most accurate device changes over time. This is why weighing devices need to be maintained and tested periodically to ensure consistent accuracy.
3. Who should use Good Weighing Practice (GWP)?
GWP is relevant for every business where weighing is part of the value chain, whether it is in a laboratory, production environment, or other processing area. It is suitable for any weighing process and new or existing weighing equipment from any manufacturer in any industry and workplace.
4. Do I need to start at step 1 or can I start at step 2 or 3?
- If you need a new balance or scale start at step 1 (selection)
- If you already have a device but it is not installed, start at step 2 (installation)
- If you already have an installed device, but have changed its location, changed your process requirements, or changed the weighing tasks, start at step 3 (calibration and routine testing)
5. What do I need to consider if I need to comply with USP 41 regulations?
The USP sets the official public standards for drugs and drug products in the US. USP drug standards are used in more than 140 countries. Learn more about USP chapters 41 and 1251 and take an eLearning course:
Or learn more in our free webinar:
6. What do I need to consider if I need to comply with ISO 9001:2015?
ISO 9001 is a standard that sets out the requirements for a quality management system. ISO 9001:2015 focuses on ensuring customer satisfaction and recognizes the way globalization is changing modern business. Learn about how ISO 9001 applies to measuring instruments and whether or not you need to make changes based on ISO 9001:2015:
7. What do I need to consider if I need to follow LFT regulations?
The application of legal metrology rules creates very strict requirements for the weighing devices used in legal-for-trade applications. However, these requirements may fall short of your own process requirements quite severely. Learn more about applying legal metrology rules and combining them with your own process requirements:
8. What do I need to consider regarding weighing if I work in the food industry?
In a laboratory as well as in production, weighing is only one part of the analysis or production chain. Nevertheless, it is important to achieve quality and maintain consistency. Furthermore, if you are in the food industry, accurate weighing processes act as an important contribution for two of the most demanding challenges in the industry: increasing consumer safety and enhancing productivity.