E1? ??? ?????? 1?3000? ?? ???? ??? ????.
23? ????(IB) ??? ??? E1? ? 1200? ? ??? 1?2760? ?? ?? ??? ???. 2?? 400? ? ??? 4150? ?, 3?? 800? ? ??? 8610? ?? ??? ???.
E1? ?? ???? ???? ????(?? ??) ?? ±30bp(???????·1bp=0.01%???)? ??? ??? 2??? ―22bp, 3??? ―41bp? ?? ??? ???.
1984? ??? E1? ?? 2?? ??????(LPG) ???? ????, 2004? LG???? LS???? ????.
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