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Jayson

Jayson founded Scale Calibration to make weighing accuracy easy to understand — researching and writing clear, practical guides on scale calibration, calibration weights, and measurement standards.

UK Average Weight Legislation: The Three Packers’ Rules Explained

August 17, 2026 by Jayson
A packaged product's label showing its nominal weight and the voluntary e-mark used under UK average weight legislation

By Jayson · Updated August 2026 · 10-minute read UK average weight legislation is the Weights and Measures (Packaged Goods) Regulations 2006, and it governs prepacked goods sold by a stated nominal quantity — not the scale itself. Every batch has to satisfy three rules: the average contents must meet or exceed the nominal quantity, … Read more

Categories Calibration Standards

CE and M Marking on Weighing Scales: What Buyers Must Check

August 17, 2026 by Jayson
CE and M marking on weighing scales

By Jayson · Updated August 2026 · 9-minute read CE and M Marking on Weighing Scales : A weighing scale legally approved for trade in the EU needs three things stamped together on its data plate: the CE mark, a supplementary M mark (a capital M plus the last two digits of the year, inside … Read more

Categories Calibration Standards

NAWI Directive 2014/31/EU: Requirements for Weighing Instruments

August 16, 2026 by Jayson

By Jayson · Updated August 2026 · 10-minute read Quick answer: The NAWI Directive 2014/31/EU is the single EU law requiring every non-automatic weighing instrument to meet defined essential requirements, pass an independent conformity assessment, and carry CE and M marking before it can be placed on the market anywhere in the EU. The harmonised … Read more

Categories Calibration Standards

EU Weighing Scale Regulations: A Compliance Guide for Businesses

August 16, 2026 by Jayson
EU Weighing Scale Regulations: A close-up of a European retail scale's data plate showing the CE mark, M mark, and notified body number

By Jayson · Updated August 2026 · 9-minute read Quick answer: EU weighing scale regulations are built around a single core law — Directive 2014/31/EU, the NAWI Directive — which requires any non-automatic weighing instrument placed on the EU market to carry a CE mark and a supplementary “M” metrology marking, meet one of four … Read more

Categories Calibration Standards

UKAS Scale Calibration: Certificates, Traceability and When You Need It

August 16, 2026 by Jayson
UKAS scale calibration certificate for an industrial scale, showing the crown accreditation symbol and measurement uncertainty results

By Jayson · Updated August 2026 · 8-minute read Quick answer: What is UKAS scale calibration? It means the work was done by a laboratory accredited by the United Kingdom Accreditation Service to ISO/IEC 17025 — the only body the UK government recognises to accredit calibration activities. That’s a genuinely different, stronger guarantee than a … Read more

Categories Calibration Standards
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Recent Posts

  • UK Average Weight Legislation: The Three Packers’ Rules Explained
  • CE and M Marking on Weighing Scales: What Buyers Must Check
  • NAWI Directive 2014/31/EU: Requirements for Weighing Instruments
  • EU Weighing Scale Regulations: A Compliance Guide for Businesses
  • UKAS Scale Calibration: Certificates, Traceability and When You Need It

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