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Good practice guides

Improving measurement understanding and best practice

Our good practice guides are a practical and informative series of documents designed to meet the needs of industry. They are a user-friendly way to find out about what to measure, how to measure it and how to understand the results. Based on NPL's expertise and experience, our guides will enable you, your customers and your suppliers to be in agreement on measurement issues.

Download our most recent and  popular guides free of charge by clicking on the relevant guide below. Alternatively, you can search through all our guides via the link below.

All good practice guides

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