AASHTO T 332-07 (2011)

Standard Method of Test for Determining Chloride Ions in Concrete and Concrete Materials by Specific Ion Probe American Association of State and Highway Transportation Officials / 2007 / 13 pages

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This method covers the procedures for determining acid-soluble chloride ions in concrete and concrete mix ingredients.

The age of concrete, mortar, or hydrated portland cement at the time of sampling will have an effect on the acid-soluble chloride ion content. Therefore, unless early age studies are desired, it is recommended that the material be well cured and at least 28 days of age before sampling.