Form WB is a sealed Plain White Chart with overall dimensions of 7-5/8 x 11-1/4 in (194 x 286 mm).
White
7-5/8 x 11-1/4 in(194 x 286 mm)
250
4
10 lb
14 mil0.36 mm
ASTM D 4062ASTM D 4400ASTM D 4946