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GB 50242-2002 第7.3.3条 Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering

Sanitary fixtures给排水

GB 50242-2002 第7.3.3条

| **** | **The main drainage stacks and horizontal main pipes shall all undergo a ball-passing test; the ball diameter shall be no less than 2/3 of the drainage pipe diameter, and the ball-passing rate must reach 100%.** (A key acceptance item for concealed works of the hotel drainage system, to prevent blockages left over from construction) |

Other clauses of this standard

GB 50242-2002 第1.0.1条Code for Acceptance of Construction Quality of Building Wat…
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GB 50242-2002 第1.0.4条Code for Acceptance of Construction Quality of Building Wat…
GB 50242-2002 第1.0.5条Code for Acceptance of Construction Quality of Building Wat…
GB 50242-2002 第2.0.1条Code for Acceptance of Construction Quality of Building Wat…
GB 50242-2002 第2.0.2条Code for Acceptance of Construction Quality of Building Wat…
GB 50242-2002 第2.0.3条Code for acceptance of construction quality of building wat…
GB 50242-2002 第2.0.4条Code for Acceptance of Construction Quality of Building Wat…
GB 50242-2002 第2.0.5条Code for Acceptance of Construction Quality of Building Wat…
GB 50242-2002 第2.0.6条Code for Acceptance of Construction Quality of Building Wat…
GB 50242-2002 第2.0.7条Code for Acceptance of Construction Quality of Building Wat…

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