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2、7-2| JIS K 1557-3| JIS K 1557-4 t| JIS K 1557-5 t?VQ? Mtphlox|?FqMFqw0z|MFt?h?FwRt|?F?,thMFj?w?0?tb?h?t| ISO 14899:2001| Plastics Polyols for use in the production of polyurethane Determination of basicity ?,qo;Mh wFwU|?V|Z&?w?Z&|;?VxZ&?w;?JZ&tb?DQUK?qt?Ib?&A?Gt|?j*qx|w?Os?V|Z&?w?Z&|;?VxZ&?w;?JZ&t?tmMo|yx?hsM JIS K 1557 wFtx|tb$RUK? JIS K 1557-1
