Clean Water Act 401 Certification
Section 401 of the Clean Water Act (CWA) empowers states and tribes to protect water quality by certifying that federally permitted discharges will meet applicable…
AGMA 915-2-B20 (R2025): Radial Composite Method
The radial composite method is a testing procedure used for cylindrical gears, particularly in the context of gear accuracy and runout deviation. This method helps determine the peak-to-peak span, maximum…
ISO 33405:2024— Reference Materials
A reference material is a material or substance whose property values are sufficiently homogenous, stable, and well established to be used for calibration of an…
New Definition for Characterization in Electromagnetic Compatibility
Gathering experts from the expanse of industries, committees and subcommittees develop standards through the voluntary consensus process. One such subcommittee, ANSC C63 SC 6, is…
Types of Conformity Assessment Activities
Activities that are used for conformity assessment include testing, calibration, inspection, audit, assurance, validation, verification, and certification. These conformity assessment activities can result in different…
What Is ISO 17034?
Laboratories often work with reference materials (RMs) for equipment calibration, method validation, general research, and quality control. Reliability in RMs is essential because any fault…
ANSI ASA S3.7-2016 (R2020): Calibration Of Earphones
Telling the difference between good and bad quality earphones involves evaluating sound quality from measurement and calibration testing. Good headphones should provide clear, balanced sound with…
Uncertain Measurement
We depend on devices and equipment to improve the quality of our lives. These products and equipment are manufactured, assembled, and tested to meet exacting…
What Is AR 3125?
The Accreditation Requirements for Forensic Testing and Calibration, AR 3125, supplements ISO/IEC 17025:2017 with applicable requirements from the International Laboratory Accreditation Cooperation (ILAC) policies. Additionally,…