TY - RPRT TI - Standard Reference Materials : Recommended method of use of standard light-sensitive paper for calibrating carbon arcs used in testing textiles for colorfastness to light/ AU - Shouse, Paul J AU - Passaglia, Elio PY - 1967 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NBS SP 260-15 DO - 10.6028/NBS.SP.260-15 ER -