@misc{1163301, author = {C E Champion and G Marinenko and K M Sappenfield and E J Catanzaro and W R Shields}, title = {Standard Reference Materials:Boric acid; isotopic, and assay standard reference materials}, year = {1970}, month = {1970-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.SP.260-17}, language = {en}, }