The ACI 530 document is used domestically and internationally.
It is written the the Masonry Joints Standards Committee (MSJC) that is comprised of the The Masonry Society (TMS), The American Concrete Institute (ACI), the SEI/ASCE along with
It is printed and distributed by ACI because they are heavy into that area and the other organizations were not interested in doing that.
If you are a member (reasonable cost), you get a substadiscount on all ACI documents. - Not quite as good as ASTM, where there are individual memberships that entitles the member to one volume.
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.