IS 9401 Pt.6-1984 Methods of Surveying for Works in River Valley Projects (Dams and Ancillary Structures) Part 6 Ventilation Ducts and Other Embedded Materials
This standard (Part 6) covers the method of measurement of ventilation pipes and other embedded material in river valley projects, such as dams, hydraulic structures, canals and power houses.
IS 9401 Pt.6-1984 history
1985IS 9401 Pt.6-1984 Methods of Surveying for Works in River Valley Projects (Dams and Ancillary Structures) Part 6 Ventilation Ducts and Other Embedded Materials