Language
UNI 5721 - 1969
CNS 4315 - 1983
NF E 27-453 - 1966
CNS 4472 - 1983
KS B 1026 - 2012 (R2022)
YJT 3011
YJT 3012
IS 7790 - 1991
UNI 2733 - 1965
JIS B 1183 - 1994
JIS B 1183 - 2001
JIS B 1183 - 2010