TY - GEN AU - John C Schleter C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1955-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.4295 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1955 TI - Spectrophotometric and colorimetric analysis of seventeen glass filters duplicating the relocated and respaced union color scale for lubricating oil and petrolatum for ASTM Committee D-2 Research Division IX submitted by Hellige, Inc.: ER -