JIS C 4551:1981 Motor driven timer standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS Z 3145:1981 Method of bend test for stud welds (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS G 1235:1981 Methods for determination of antimony in iron and steel (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS G 1234:1981 Methods for determination of tellurium in steel (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS G 0577:1981 Method of pitting potential measurement for stainless steels standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS E 3020:1981 Change of temperature testing method for parts of railway signaling (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS C 5515:1981 Standard condenser microphones standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS K 1462:1981 Iron (III) oxide for ferrite (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS K 1357:1981 Oxalic acid standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS Z 8201:1981 Mathematical symbols (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS R 2501:1981 Refractory mortars (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981
JIS R 2505:1981 Testing method for setting time of refractory mortars (FOREIGN STANDARD) standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1981