ART - Mortar and Pestle Specification 2009

The document is a specification sheet from the Louisiana Department of Transportation and Development. It provides details about a specific stock number (DOTD Spec. 262-003) for a mortar and pestle used for soil samples. The mortar is made of cast iron and must have a smooth interior. It is used for reducing the power of soil samples according to AASHTO Designation T87. The pestle is made of molded rubber with a cast iron spider and has a hole size of 5/8 inch, tapped out approximately 1 ¼ inches deep. The document also mentions that there is a drawing attached for reference.