IS Title/आईएस शीर्षक:
Quantitative Classification Systems of Rock Mass — Guidelines Part 2 Rock Mass Quality for Prediction of Support Pressure, Support System and Engineering Properties in Underground Openings ( First Revision )
Superseding IS/सुपरसीडिंग आईएस:
None
Degree of Equivalence/समतुल्यता स्तर:
Indigenous
Number of Revisions/पुनरीक्षणों की संख्या:
1
Number of Amendments/संशोधनों की संख्या:
No amendment issued