000 00450nam a2200133Ia 4500
008 220217s9999 xx 000 0 und d
245 0 _amination of plasticity retention index (PRI) (NR: 13) (First Revision)
260 _aNew Delhi
260 _c1989
_bBureau of Indian standards
490 _aMethods of test for natural rubber. part 12. Deter
500 _aStandard number: IS 3660 (Part 12)
650 _aPlasticity Retention Index
942 _cST
999 _c73709
_d73709