Standard Method of Test for
Air-Entraining Admixtures for Concrete
AASHTO Designation: T 157-06
ASTM Designation: C 233-04
SCOPE
1.1.This method covers the testing of materials proposed for use as air-entraining admixtures in the field.
1.2.The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information purposes only.
1.3.This standarddoes not purport to address all of the safetyconcerns associated with its use.
It is the responsibilityof the user of this standard to establish appropriatesafety and health practices and determine the applicability of regulatory limitationsprior to use.
1.4.The text of this standard references notes and footnotes which provide explanatory materials.
These notes and footnotes (excluding those in tables and figures) shall not be considered as
requirements of the standard.
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