ZI 3031
Standards:IS 2720 (PART XVII)
Specification:
Same as ZI 3030 but instead of a set of three glass stand pipes a stand with nine glass tubes of 6mm, 10mm, 20mm, 25mm, 40mm, 50mm, 60mm, 70mm, 75mm, bore tube is provided with over flow arrangement for constant head tests. The remaining tubes are used for falling head test.