GSO ASTM A1105:2025

ASTM A1105:17(2022)
Gulf Standard   Current Edition · Approved on 14 October 2025

Standard Specification for Corrugated Steel Manhole Assemblies

GSO ASTM A1105:2025 Files

GSO ASTM A1105:2025 Scope

This specification covers products used in the assembly and construction of circular reinforced corrugated steel manholes for sewer and water works. Requirements are specified for the manufacture and purchase of: steel sheet for manhole structure(s) pipe, steel sheet for coupling bands, rivets, hardware for joining systems, gaskets, metallic-coated steel inserts, and steel reinforced concrete (cement, allowable combinations of cementious materials, aggregates, admixtures and blends, steel reinforcement, other materials). Products covered by this specification are not normally used for the conveyance of sanitary or industrial wastes. The steel sheet used in fabrication of the manhole structures has a protective metallic coating of zinc (galvanizing), aluminum, 55% aluminum-zinc alloy, or zinc-5% aluminum-mischmetal alloy, or a polymer pre-coating.

This specification establishes requirements for design, reinforcement, cast-in-place concrete manufacture, acceptance procedures, test methods (concrete compressive strength test, absorption test, retests, test equipment), repairs, inspection, product marking, grade rings, cast-in-place CSP manhole structures (double-walled), corrugated steel manhole structures (single-walled), base sections, and steps and ladders.

Best Sellers From Construction and Building Sector

GSO 1431:2002
 
Gulf Technical Regulation
Sanitary appliances - pressurized flushing devices
GSO 1427:2008
 
Gulf Standard
Ceramic Sanitary Appliances - Western Water Closets
BH GSO 1427:2024
GSO 1427:2008 
Bahraini Standard
Ceramic Sanitary Appliances - Western Water Closets
GSO 1421:2002
 
Gulf Technical Regulation
Hollow blocks made from clay for walls

Recently Published from Construction and Building Sector

GSO ASTM E2266:2025
ASTM E2266:22 
Gulf Standard
Standard Guide for Design and Construction of Low-Rise Frame Building Wall Systems to Resist Water Intrusion
GSO ASTM C687:2025
ASTM C687:24 
Gulf Standard
Standard Practice for Determination of Thermal Resistance of Loose-Fill Building Insulation
GSO ISO/TS 16774-2:2025
ISO/TS 16774-2:2023 
Gulf Standard
Test methods for repair materials for water-leakage cracks in underground concrete structures — Part 2: Test method for chemical resistance
GSO ASTM C1225:2025
ASTM C1225:23 
Gulf Standard
Standard Specification for Fiber-Cement Roofing Shingles, Shakes, and Slates