000 00237nam a2200073 4500
080 _a
_b
245 _aISO: 291-1997; Plastics standard atmospheres for conditioning and testing
100 _aINTERNATIONAL ORGANIZATION FOR STANDARDISATION
260 _aSWITZERLAND
_bISO
_c1997
300 _a7p
999 _c36188
_d36188