T/CMRA 01-2015 Active Group standards

T/CMRA 01-2015 Quality Management Specification for Socket-type Plate-clamp Steel Pipe Supports

T/CMRA 01-2015

Publish Date: 2015-05-01 Implement Date: 2015-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CMRA 01-2015

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Standardized management and general provisions

ICS Name: Other building materials

Publish Date: 2015-05-01

Implement Date: 2015-07-01

Scope

Scope: This standard specifies the general requirements, quality management requirements, and supervision and management requirements for production, leasing, and professional contracting enterprises. This standard applies to members of the Spliced Plate Clamp Scaffolding Quality Alliance of the China Infrastructure Materials Leasing and Contracting Association, as well as enterprises engaged in the production, leasing, and professional contracting of spliced plate clamp steel pipe scaffolding. Main Technical Content: 4.1.2 All kinds of raw materials purchased by production enterprises shall meet the requirements for materials specified in the Ministry of Housing and Urban-Rural Development's engineering construction industry standard "Spliced Plate Clamp Steel Pipe Scaffolding", and the following items shall be inspected on-site: a) The steel pipes shall be free from cracks, dents, and rust, and butt-welded steel pipes shall not be used; b) The steel pipes shall be straight, with a permissible deviation in straightness of 1/1000 of the pipe length. The two end faces shall be flat, without slanted edges or burrs; c) The wall thickness of the upright rods shall not be less than 3.1mm, and the wall thickness of the horizontal rods and horizontal diagonal rods shall not be less than 2.4mm. The wall thickness of standard vertical diagonal rods shall not be less than 2.2mm, and the wall thickness of heavy-duty vertical diagonal rods shall not be less than 2.4mm; d) The surface of castings shall be smooth, without defects such as sand holes, shrinkage holes, or cracks. Surface sand adhesion shall be thoroughly removed; e)