@misc{1192366, author = {Margaret A Baker}, title = {1939 exposure test of porcelain enamels on steel 30-year inspection:}, year = {1971}, month = {1971-01-01 05:01:00}, publisher = {Building Science Series, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.BSS.38}, language = {en}, }