
????????? ????????? ??????? ??????? ???? ???? ?? ????? ?????????
???? ??? ???????? ???????? ASTM f1959 / f ??????? ??????? ???????? ??????? ??????? ???? ??????? ??????????? ????? ?? ??????? ????? ????? ?????? ?????? ?????? ?????? ???.
???? ??? ???????? ???????? ASTM f1959 / f ??????? ??????? ???????? ??????? ??????? ???? ??????? ??????????? ????? ?? ??????? ????? ????? ?????? ?????? ?????? ?????? ???.