????? ???

?? 8??? ????? ???? ??? ??? ??.

?? ???? ????? ???? ??? ??? ??? ????: ? ??.

American Society for Testing and Materials (ASTM), ????? ???

• ASTM D3489-23 ????? ??? ??? ??????
• ASTM D3489-06 ????? ??? ??? ??????
• ASTM D3489-96(2000) ??? ?????? ????????
• ASTM D3768-11 ????? ???? ???? ??????
• ASTM D3769-10 ????? ???? ?? ??? ?? ??????
• ASTM D3768-06 ????? ???? ????? ?? ??????
• ASTM D3769-15 ????? ???? ?? ??? ???? ?? ??????
• ASTM D3769-05 ????? ???? ?? ??? ???? ?? ??????

??:   ??? ??, ?????, ?????, ??? ??, ??? ??, ??? ??, ???, ?????, ????????, ??? 91, ??? ??, ????? ???, ??? ??, ??? ??, ??? ??, ??????, ??? ??, ??????? ??, ??????? ??.