IS 11830 : Part 1 : 1991 Water well-drilling down-the-hole hammer rigs Part 1 General requirements for hydraulic rigs with or without rotary mode

1 Scope

This Indian Standard (Part 1) lays down the general requirementsfor down-the-hole (DTH) hammer hydraulic rigs (with or withoutrotary mode) for water well drilling in consolidated formations.

2. Referenced Documents

The Indian Standards listed in Annex A are necessary adjuncts to this standard