渠蓋/沙井蓋測試
​
​​​渠蓋/沙井蓋、溝壑光柵和遏制溢流堰的凹陷、質量測定及載荷測試
​ BS EN 124-1: 2015 Cl. 8 *
 Hong Kong Housing Authority Specification Library (2022) DRA2.M650.9 &                     DRA2.T430.9 to DRA2.T490.9 *
 General Specification for Civil Engineering Works (2006) Vol. 1 Cl. 5.95 & App. 5.3 ​*
 General Specification for Civil Engineering Works ​(2020) Vol. 1 Cl. 5.95 & App. 5.3 *

Manhole Cover
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​​​Permanent set, mass determination & loading test of manhole cover, gully gratings & kerb overflow weirs
 BS EN 124-1: 2015 Cl. 8 *
 Hong Kong Housing Authority Specification Library (2022) DRA2.M650.9 &                     DRA2.T430.9 to DRA2.T490.9 *
 General Specification for Civil Engineering Works (2006) Vol. 1 Cl. 5.95 & App. 5.3 ​*
 General Specification for Civil Engineering Works ​(2020) Vol. 1 Cl. 5.95 & App. 5.3 *