| 摘要 |
FIELD: tobacco goods. ^ SUBSTANCE: filter contains activated charcoal, in which volume of pores of maximum of 0.3 cm3/g (N2) is provided with pores of diameter of less than 2 nm (micropores), and (a) volume of pores of at least 0.25 cm3/g (N2) is provided with pores of diameter from 2 to 50 nm (mesopores) and/or (b) volume of pores of at least 0.12 cm3/g (Hg) is provided with pores of diameter from 7 to 50 nm (larger mesopores). ^ EFFECT: filter provides satisfactory filtration of steam phase and presentation of aroma in the presence of volatile. ^ 21 cl, 2 tbl |
