JIS S 6005:2019 specifies requirements for black leads and colour leads used for mechanical pencils as specified in JIS S 6013 (hereafter referred to as black leads and colour leads, respectively).
JIS S 6005:2019 History
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JIS G 3120:2003
$16.00 $32.00
JIS H 1363:2003
$16.00 $32.00
JIS Q 19011:2003
$27.00 $54.00
JIS G 3101:2004
$16.00 $32.00