Transcription of BUREAU OF INDIAN STANDARDS (CENTRAL …
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BUREAU OF INDIAN STANDARDS (CENTRAL …
BUREAU OF INDIAN STANDARDS ( central marks department -III) Our Ref: CMD/16:458 06 August 2009 Subject: Grouping and procedure of Precast concrete pipes (with and without reinforcement) as per IS 458:2003 for grant of licence / inclusion In view of revision of IS 458:2003, and feed back from ROs/BOs, grouping guidelines for Grant of licence and Inclusion of new varieties for Precast Concrete Pipes (with and without reinforcement) as per IS 458:2003, modifying the earlier CMD guidelines vide circular :458 dated 20-03-1991 are as under: Group Size Group 0 mm Group 1 mm Group 2 mm Group 3 mm Group 4 mm Group 5 mm NP1 class 80-225 250-450 - - - - NP2 Class -do- -do- 500-800 900-1200 1400 - 2200 - NP3 Class -do- -do*- 500-900 1000 - 1200 1400 - 1800 2000 2600 NP4 Class -do- -do*- -do- -do- -do- -do- P1 class -do- -do- 500-800 900- 1200 - - P2 class -do- -do- 500-700 800 - 1000 - - P3 class -do- 250-500 600-800 - - - Note: 1.
BUREAU OF INDIAN STANDARDS (CENTRAL MARKS DEPARTMENT-III) Our Ref: CMD/16:458 06 August 2009 Subject: Grouping and procedure of …
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