Jayson 
By Jayson · Updated August 2026 · 9-minute read Quick answer: NIST NIST Handbook 44 is the US rulebook for commercial weighing devices. It defines how scales must be built, marked, tested, and how accurate they have to be. NIST publishes it every year; states adopt it into law. It’s the technical foundation for NTEP … Read more
By Jayson · Updated August 2026 · 8-minute read Understanding legal for trade scales is essential for any business involved in weight-based transactions. Quick answer: A legal-for-trade scale is one approved for buying and selling by weight. It has passed NTEP evaluation, meets NIST Handbook 44, and is checked by a state weights and measures … Read more
By Jayson · Updated August 2026 · 9-minute read Quick answer: Weights and measures are the official standard units — the pound, the gram, the gallon — that governments define and enforce so every scale reads the same. In the US, NIST sets the standards and your county’s weights and measures office checks that commercial … Read more
By Jayson · Updated August 2026 · 9-minute read Quick answer — E2 class weights: E2 class weights are the accepted minimum reference standard for analytical balances, and an M1-class “budget” weight cannot substitute for one. Per the real OIML R111 tolerance table, M1 weights run roughly 30 times wider in tolerance than E2 at … Read more
By Jayson · Updated August 2026 · 9-minute read Quick answer — Stainless steel calibration weights: stainless steel calibration weights outperform chrome-plated brass because chromium is built into the entire alloy, not applied as a coating. A minimum chromium content of 10.5% forms a self-healing passive oxide film across the whole surface, so even a … Read more