This method covers the testing of materials proposed for use as air-entraining admixtures in the field. The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information purposes only. This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The text of this standard references notes and footnotes that provide explanatory materials. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
T 157-2012 history
2023T/CIET 157-2023 Green and low-carbon evaluation guidelines for smart home products
2012T 157-2012 Standard Method of Test for Air-Entraining Admixtures for Concrete
2011T 157-2011 Standard Method of Test for Air-Entraining Admixtures for Concrete
2006T 157-2006 Standard Method of Test for Air-Entraining Admixtures for Concrete
2005T 157-2005 Standard Method of Test for Air-Entraining Admixtures for Concrete (ASTM Designation: C 233-01)