Baltimore, MD 2002. ASTM DS67A, 2nd Edition. 658 p. ISBN: 0-8031-3042-2 Language: English. When comparing steel standards from different national and international standard development organizations (SDOs), there is no such thing as "equivalent" steel standards. At best, one may be able to group "comparable" steel standards together based on some defined set of rules, which has been done in this book.