AMB 29081 (105) SRM Cylinders

Please include the Purchase Order number on all invoices. Submit invoices to Purchasing@idem.IN.gov These three cylinders are standard reference material (SRM) cylinders. They are the top tier of gaseous cylinder traceability and authority. These cylinders are manufactured and certified by the United States government's National Institute of Standards and Technology. There is no higher level of gaseous cylinder traceability or authority in the United States.