When the SpecLink database was originally being developed, we had to check all the reference standards for accuracy. That meant verifying their actual existence and checking the title and date. Since the masters we were working with were anywhere from 1 to 6 years old, there were a lot of corrections. Then, because we had verified the dates, we decided to make them available to subscribers – there’s an optional check box that will hide the dates in the printed copy.
To maintain the dates we built a database of all the standards which we now use to verify each at least twice a year. Now that most organizations have at least their publication lists on the internet it doesn’t take long to check. We’ve found that twice a year will catch the irregularly published ones within a few months of publication. We update ASTM’s once a year, based on the 4-volume “ASTM’s in Building Codes,” because that’s the most economical source of ASTM’s for most people. (Also, ASTM updates willy-nilly, a virtual blizzard of changes, most of which are editorial.) We also obtain the new standards and compare to the old.
Besides the fact that we wanted to do this, we considered the alternative. What happens when a project spec says “comply with current edition as of the date of the bid” and you get into a dispute. Do you mr./ms. specifier actually know which edition that was? Did you have it in your office? Will the authoring organization help you figure that out? ASTM’s actually have several dates: the year shown in the designation, the mm/dd/yy date shown in the footnote, and the actual date they were available for purchase, which is not stated anywhere and is usually several months after adoption. And what if the standard you reference is withdrawn, out of print, or abandoned – do you really want to reference it?
The good news is, over the 10 years we’ve been doing this, we’ve found that only a small percentage of the 1000 non-ASTM standards referenced in SpecLink are actually updated in any one year; approx 30% of the 700 ASTMs are updated from one year to the next. Of all of those, only a small percentage have any substantial changes that would affect the spec or the execution. Plus, almost none have changed to the detriment of the spec. This is the main reason we continue to update to the most recent. It means that if you reference a more recent edition of most standards than your code does, it won’t usually cost more, it will usually get you as good or better, and it won’t usually get you less than you thought you were getting. And by referencing the latest edition date, we show that we know that the standard is still valid.
I admit that some of the standards referenced in the codes have changed dramatically from one edition to the next – ASCE 7 (for wind and seismic loads) comes to mind – but we’ve found that standards that change substantially change for a good reason (the science is better, or the products available have changed a lot). Only rarely does a revised standard change in an undesirable way. (ASTM is particularly conscientious about this – completely different requirements are almost always published as completely NEW standards, not as revisions to existing ones.) When ASCE 7 changes fundamentally, would you not want to have the project designed to the new “science”? I’ll bet if you asked the code authorities about that one, they would agree. Besides some standards are so fundamental that you absolutely must understand and know which edition you’re referring to. On the other hand, in some cases, specifiers need to reference an older version because it’s in their local code – for instance, NFPA 70 is not always immediately adopted by local jurisdictions.
Note that with SpecLink, the standards updates can be automatically accepted without affecting any of the rest of the spec. Alternatively, if the specifier wants to review the changes before accepting, the software will highlight all that would be changed for easy identification and comparison.