Standard Specification for
Loadbearing Concrete Masonry Units1
This general is issued below the constant designation c ninety; the quantity right away following the designation indicates the 12 months of original
adoption or, in the case of revision, the yr of remaining revision. a number of in parentheses suggests the year of remaining reapproval. a superscript
epsilon (e) shows an article trade because the ultimate revision or reapproval.
This popular has been approved for use by using companies of the department of protection.
click below to download Astm C 90 – 03 pdf free
click here to download Astm C 88 – 99a pdf free
