TY - GEN AU - Margaret A Baker C2 - Building Science Series, National Institute of Standards and Technology, Gaithersburg, MD DA - 1971-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.BSS.38 LA - en PB - Building Science Series, National Institute of Standards and Technology, Gaithersburg, MD PY - 1971 TI - 1939 exposure test of porcelain enamels on steel 30-year inspection: ER -