ORDERING PROCEDURE Orders should be addressed to the Office of Standard Reference Materials, Room B311 Chemistry Building, National Bureau of ... For example: 150g (1 unit) of No. llh, Basic-Open-Hearth Steel, 0.2 percent C. These materials are distributed only in the units listed. ... Pro-forma invoice service requires 6 to 8 weeks to process, and is furnished only to those requiring such service.
|Title||:||NBS Standard Reference Materials|
|Author||:||United States. National Bureau of Standards|