pH meters may require calibration and can be calibrated by the lab themselves Published! What started as a workshop at A2LA AnnCon25 has become a published Guide G149: Guidance for Application of A2LA P102 In-House Calibrations . (A2LA P102 is the Policy on Metrological Traceability.) In-house calibrations  are for "conformity assessment bodies (CAB) when they are calibrating their own Measurement & Test Equipment (M&TE) that are used in support of accreditation activities

How do you know how heavy a red-hot chili pepper is? ( sing this out loud ) Give it a weigh, give it a weigh, give it a weigh now. I had to start with a good pun. Really, I'm excited about the updated U.S. Pharmacopeia chapters <41> Balances and <1251> Weighing on an Analytical Balance - both officially OFFICIAL as of February 1, 2026! USP <41> is especially a key chapter as it is used for any USP requirement where "balances used for materials that must be accurately

Questions: Have you struggled with understanding Measurement Uncertainty? I mean, haven't we all?! Have you struggled knowing how to find...

Quality Magazine announced their countdown of the Top 10 Quality Articles of 2024 and Heather Wade's 2024 article "How to Read &...

See where I'll be presenting in-person and virtually next: Heather's Upcoming Presentations Let's connect! Subscribe to this website to...

Last week I attended the 2023 A2LA Conference as an A2LA 17025 assessor. What a useful conference for accreditation assessors AND for lab...

Illustration 61675641 © Vicnt | Dreamstime.com We cannot simply ignore the risk associated with a measurement by ignoring its associated...

Heather A Wade is Editor and Heather Wade Group is proud to be an authorized reseller of ASQ's Metrology Handbook, 3rd Edition. After 2...

It's been a busy 2021, so far! I am proud to share a podcast in celebration of 2021 World Metrology Day in which I am a guest metrology subject matter expert for AASHTO , "The gold standard for laboratory accreditation in the construction industry". Check out their other resources, regardless of the industry you're in. Let me know what you think! Other 2021 highlights? Conducting ISO/IEC 17025 accreditation assessments for A2LA Presenting monthly webinars to help labs reduc

This has been a busy year already, especially for remote work. Some of this remote work was planned and some was in response to travel...

Part 2 of the #1 ISO/IEC 17025:2017 Accreditation Audit findings? EQUIPMENT!!

Interpret and determine equipment accuracies for test method specifications.