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REGD. No. D. L.-33004/99
The Gazette of India
CG-DL-E-29042026-272148
EXTRAORDINARY
PART III—Section 4
PUBLISHED BY AUTHORITY
No. 295]
NEW DELHI, TUESDAY, APRIL 28, 2026/VAISAKHA 8, 1948
BUREAU OF INDIAN STANDARDS
(Department of Consumer Affairs)
NOTIFICATION
New Delhi, the 22nd April, 2026
Ref: HQ-PUB013/1/2020-PUB-BIS (1526). In pursuance of Sub-rule (1) of Rule (15) of the Bureau of
Indian Standards Rules, 2018, the Bureau of Indian Standards hereby notifies that Indian standards, particulars of which
are given in the second column of the schedule hereto annexed have been established on the date indicated against it in
third column. The particulars of the standards, if any which are given in the fourth column shall also remain in force
concurrently till they are withdrawn on the date indicated against them in the fifth column.
SCHEDULE
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| SI. | No., Year & Title of the Indian | Date of | No., Year & Title of the | Date of |
| No. | Standards Established | Establishment | Indian Standards to be | Withdrawal |
| | | | Withdrawn, if any | |
+=====+=================================================================================+=====================+====================================================================================+===================+
| (1) | (2) | (3) | (4) | (5) |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 1 | IS 4997: 2026 | 21 April 2026 | IS 4997 – 1968 | 21 October 2026 |
| | Design of Hydraulic Jump Type | | Criteria for Design of Hydraulic | |
| | Stilling Basins with Horizontal | | Jump Type Stilling Basins with | |
| | and Sloping Apron — Criteria | | Horizontal and Sloping Apron | |
| | (First Revision) | | | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 2 | IS 5878 (Part 1): 2026 | 21 April 2026 | IS 5878 (Part I) – 1971 | 21 October 2026 |
| | Construction of Tunnels | | Code of Practice for | |
| | Conveying Water | | Construction of Tunnels | |
| | Part 1 Precision Survey and | | Part I Precision Survey and | |
| | Setting Out — Code of Practice | | Setting Out | |
| | (First Revision) | | | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 3 | IS 8605: 2026 | 21 April 2026 | IS 8605 – 1977 | 21 October 2026 |
| | Construction of Masonry in Dams | | Code of Practice for | |
| | Code of Practice | | Construction of Masonry in | |
| | (First Revision) | | Dams | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 4 | IS 9401 (Part 1): 2026 | 21 April 2026 | IS 9401 (Part 1): 1999 | 21 October 2026 |
| | Method of Measurement of Works | | Method of Measurement of | |
| | in River Valley Projects | | Works in River Valley Projects | |
| | (Dams and Appurtenant | | (Dams and Appurtenant | |
| | Structures) | | Structures) | |
| | Part 1 Excavation for Foundation | | Part 1 Excavation for | |
| | (Second Revision) | | Foundation | |
| | | | (First Revision) | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 5 | IS 9401 (Part 9) : 2026 | 21 April 2026 | IS 9401 (Part 9) – 1987 | 21 October 2026 |
| | Method of Measurement of Works | | Method of Measurement of | |
| | in River Valley Projects | | Works in River Valley Projects | |
| | (Dams and Appurtenant | | (Dams and Appurtenant | |
| | Structures) | | Structures) | |
| | Part 9 Lining | | Part 9 Lining | |
| | (First Revision) | | | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 6 | IS 9401 (Part 10): 2026 | 21 April 2026 | IS 9401 (Part 10): 1990 | 21 October 2026 |
| | Method of Measurement of Works | | Method of Measurement of | |
| | in River Valley Projects (Dams | | Works in River Valley Projects | |
| | and Appurtenant Structures) | | (Dams and Appurtenant | |
| | Part 10 Formwork | | Structures) | |
| | (First Revision) | | Part 10 Formwork | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 7 | IS 9401 (Part 12): 2026 | 21 April 2026 | IS 9401 (Part 12): 1992 | 21 October 2026 |
| | Methods of Measurement of Work | | Method of Measurement of | |
| | in River Valley Projects (Dams | | Works in River Valley Projects | |
| | and Appurtenant Structures) | | (Dams and Appurtenant | |
| | Part 12 Topographical Surveys | | Structures) | |
| | (First Revision) | | Part 12 Topographical Surveys | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 8 | IS 10334: 2026 | 21 April 2026 | IS 10334-1982 | 21 October 2026 |
| | Selection, Splicing, Installation | | Code of Practice for | |
| | and Providing Protection to the | | Selection, Splicing, Installation | |
| | Open ends of Cables Used for | | and Providing Protection to the | |
| | Connecting the Resistance Type | | Open ends of Cables Used for | |
| | Measuring Devices in Concrete | | Connecting Resistance Type | |
| | and Masonry Dams — Code of | | Measuring Devices in Concrete | |
| | Practice | | and Masonry Dams | |
| | (First Revision) | | | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 9 | IS 10434 (Part 2): 2026 | 21 April 2026 | IS 10434 (Part 2): 1996 | 21 October 2026 |
| | Installation, Maintenance and | | Guidelines for Installation, | |
| | Observation of Deformation | | Maintenance and Observation | |
| | Measuring Devices in Concrete | | of Deformation Measuring | |
| | and Masonry Dams — Guidelines | | Devices in Concrete and | |
| | Part 2 Vibrating Wire Type Joint | | Masonry Dams | |
| | Meter | | Part 2 Vibrating Wire Type | |
| | (First Revision) | | Jointmeter | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 10 | IS 11639 (Part 3): 2026 | 21 April 2026 | IS 11639 (Part 3): 1996 | 21 October 2026 |
| | Criteria for Structural Design of | | Structural Design of Penstock | |
| | Penstock — Guidelines | | Criteria | |
| | Part 3 Specials for Penstocks | | Part 3 Specials for Penstocks | |
| | (First Revision) | | | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 11 | IS 12633: 2026 | 21 April 2026 | IS 12633: 1989 | 21 October 2026 |
| | First Filling and Emptying of | | First Filling and Emptying of | |
| | Pressure Tunnels — Guidelines | | Pressure Tunnels — Guidelines | |
| | (First Revision) | | | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
| 12 | IS 15310: 2026 | 21 April 2026 | IS 15310: 2003 | 21 October 2026 |
| | Hydraulic Design of Pump Sumps | | Hydraulic Design of Pump | |
| | and Intakes — Guidelines | | Sumps and Intakes — | |
| | (First Revision) | | Guidelines | |
+-----+---------------------------------------------------------------------------------+---------------------+------------------------------------------------------------------------------------+-------------------+
NISHAT SULTANA HAQUE, Scientist G & DDG (Hallmarking and Training)
[ADVT.-III/4/Exty./64/2026-27]
Uploaded by Dte. of Printing at Government of India Press, Ring Road, Mayapuri, New Delhi-110064
and Published by the Controller of Publications, Delhi-110054.
Digitally signed by KUMER
KUMER CHAND CHAND MEENA
MEENA Date: 2026.04.29 13:03:49
+05:30
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