000 00281pam a2200097a 44500
082 _aTR
_bNBS260-30
100 _aHerman L. Wagner
245 1 _aComparison of original and supplemental SRM 705,narrow molecular weight distribution polystyrene
260 _a
_b
_c
997 _aTR4258 C
999 _c405149
_d405149