TY - RPRT TI - package checking field manual to accompany NBS Handbook 133 : checking the net contents of packaged goods AU - Brickenkamp, Carroll S AU - Hasko, Stephen AU - Natrella, Mary G PY - 1985 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 85-3172 DO - 10.6028/NBS.IR.85-3172 ER -