Since 1838, Troemner has enjoyed a long history as the leader in the field of precision measurements. Over the years, Troemner has enhanced its reputation as being the premier company in the metrology industry by achieving ISO 9001 certification, and accreditation in our laboratories by both the National Institute of Standards and Technology (NIST) administered National Voluntary Laboratory Accreditation Program (NVLAP) and the United Kingdom Accreditation Service (UKAS). Troemner strives for excellence in every area of the business, and continues to raise the standards of the industry. Troemner offers the most comprehensive selection of precision weights and mass standards. Our weight selection includes every imaginable size and type from 5000 lb cast iron test weights to the extremely precise, highly polished one and two-piece stainless steel weights.