IS 3764 -1992 INDIAN STANDARD EXCAVATION WORK-CODE OF SAFETY. Civil Engineer 8 years ago IS 3764 -1992 INDIAN STANDARD EXCAVATION WORK-CODE OF SAFETY. Download this IS Code : IS 3764 -1992 INDIAN STANDARD EXCAVATION WORK-CODE OF SAFETY Share this: IS – 5249 -1992 INDIAN STANDARD DETERMINATION OF DYNAMIC PROPERTIES OF SOIL METHOD OF TEST.IS 13468 1992 INDIAN STANDARD APPARATUS FOR DETERMINATION OF DRY DENSITY OF SOIL BY CORE CUTTER METHOD -SPECIFICATIONIS 13326 1992 INDIAN STANDARD EVALUATION OF INTERFACE FRICTION BETWEEN GEOSYNTHETICS AND SOIL-METHOD OF TEST