@misc{1197051, author = {Joe D Simmons}, title = {NIST calibration services users guide:}, year = {1989}, month = {1989-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.SP.250e1989}, language = {en}, }