NISTIR 5375, issued by National Institute of Standards and Technology in February 1994, reprinting ISA paper 93-091, printed pp. 299–320. The reprinted paper bears an ISA 1993 copyright; this is distinct from the NIST report publication.[ref]
Online text: nvlpubs.nist.gov/nistpubs/Legacy/IR/nistir5375.pdf
Cited passages: printed pp. 313–316, Pycnometer Calibration, Figure 5 and Pycnometer Application: calibration and correction for bath-versus-weighing temperature; printed p. 315: tin-oxide charge precaution, no detected charge, and pycnometer data not yet analyzed.