Since 1838, Troemner has provided an extensive selection of calibration weights and mass standards. Today Troemner is an ISO 9001 registered company and one of the world's leading suppliers of calibration weights and mass standards. We manufacture and certify calibration weights and mass standards to meet or exceed the highest tolerance standards of the National Institute of Standards & Technology (NIST), the American Society for Testing & Materials (ASTM), the International Organization of Legal Metrology (OIML) and ISO 17025.
Since 1995, Troemner's laboratories have been accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) and the United Kingdom Accreditation Service (UKAS), formerly known as NAMAS. This dual accreditation requires Troemner to routinely undergo rigorous audits assuring our customers that their calibration weights and mass standards conform to the highest quality standards around the world.
QuickLINKS:
> Certified Weights and Weight Sets
> Free Mass Standards Handbook
> Standard Weight Product Offering
Certified Weights and Weight Sets
In addition to our calibration weight manufacturing capabilities, Troemner has the largest independent mass metrology laboratory in the world that offers economical, fast, and highly reliable mass calibration and certificate options. For calibration weights and mass standards, Troemner offers either NVLAP or UKAS certification for mass and NVLAP certification for density and magnetic susceptibility.
Troemner offers the most comprehensive selection offering of Calibration Masses and Mass Standards:
- Any Size – from 50 micrograms to 2000 kg (.00001oz to 5000 lbs)
- Any Denomination – metric, avoirdupois, troy ounce, grain, pennyweight, carat, other standards or even custom weights.
- Any Tolerance – including all ANSI/ASTM, NIST, OIML classes, F-Class (commercial) - or special tolerances such as Troemner UltraClass or a customer designated tolerance. Click here for more information.
- Any Material – including stainless steel, brass, aluminum, nichrome, cast iron, steel, gold, silver, titanium, and more.
- Any Shape – slotted, hook, bar, cylindrical, flat, dish, cube, etc.
Free Mass Standards Handbook
Troemner's proprietary Mass Standards Handbook is a useful reference for all metrology laboratory personnel. This Handbook is designed to clarify the applications, classifications and physical characteristics of calibration weights and mass standards and the tolerances used in their production and calibration. Anyone who uses balances, scales and associated calibration weights/weight sets in their work will find this publication a helpful and practical aid. Please click here to get your free booklet.
