TY - GEN AU - Elmer L Peffer AU - Grace C Mulligan C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1941-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.CIRC.434 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1941 TI - Circular of the Bureau of Standards no. 434::testing of glass volumetric apparatus ER -