This standard describes the minimum requirements for quicklime and hydrated lime, including physical, chemical, sampling, packaging, shipping, and testing requirements. The standard describes pebble, lump, and ground quicklime and hydrated lime for use in the treatment of potable water, wastewater, or reclaimed water supply service.

Major changes include the use of lime and quicklime for wastewater and reclaimed water, information about regulatory compliance, and guidance for rejection of the material and concentration variation.