Labratory Equipment Division: 0.1m Standard: Â BS. NF Certification: ISO 9001 Transport Package: 9mm and 15mm Plywood Packager Trademark: Civittest Origin: Zhejiang-China Description Liquid Limit & Plastic Limit Test Equipment is especially designed to determine the moisture content that which soil changes from one state to another state. The equipment includes a liquid limit machine, a brass cup, a grooving tool, and a mechanism for controlling the rotation rate.