Codes of Practice by Gas Standards Office

PublicationType of InformationPrice (HK$)Availability
1. Avoidance of Damage to Gas Pipes 2nd edition [PDF format (49.5MB)]#
- Supplementary Information (Registered gas supply companies with piped gas system in Hong Kong)[ PDF format(104KB) ]
Code of Practice Free of Charge EMSD Website
2. Code of Practice for Hong Kong LPG Industry, Module 1 (Issue 2) - LPG Compounds and Cylinder Stores [PDF format (292KB)] Code of Practice Free of Charge EMSD Website
3. Code of Practice for Hong Kong LPG Industry, Module 2 (Issue 1) - Underground LPG Pipework [PDF format (443KB)] Code of Practice Free of Charge EMSD Website
4. Code of Practice for Hong Kong LPG Industry, Module 3 (Issue 1) - Handling and Transport of LPG in Bulk by Road [PDF format (1289KB)] Code of Practice Free of Charge EMSD Website
5. Code of Practice for Hong Kong LPG Industry, Module 7 (Issue 1) - Operating Procedures for Emergencies for LPG Compounds and Cylinder Stores [PDF format (83KB)] Code of Practice Free of Charge EMSD Website
6. Code of Practice for Hong Kong LPG Industry, Module 9 (Issue 1) - LPG Cylinders [PDF format (155KB)] Code of Practice Free of Charge EMSD Website
7. Code of Practice GU01 -
(i) Approval of Flexible Gas Tubing for Low Pressure Applications [PDF format (256KB)]
(ii) Testing Methods for Basic Safety Assessment Certification [PDF format (582KB)]
(iii) Reference of National / International Safety Standards [PDF format (80KB)]
Code of Practice Free of Charge EMSD Website
8. Code of Practice GU03 - Installation Requirements For Domestic Gas Water Heaters (Rated Heat Input Up To 70 kW) [PDF format (0.98MB)]
Issue 2: October 2001 / (Rev. 1): October 2014
Code of Practice Free of Charge EMSD Website
9. Code of Practice GU04 - Excess Flow Valve for Piped Gas Supply to Domestic Gas Cooking Installation [PDF format (354KB)] Code of Practice Free of Charge EMSD Website
10. Code of Practice GU05 - Approval of Domestic Gas Appliances [PDF format (327KB)] Code of Practice Free of Charge EMSD Website
11. Code of Practice GU06 - LPG Installations for Catering Purposes in Commercial Premises [PDF format (1,391KB)] Code of Practice Free of Charge EMSD Website
12. Code of Practice GU09 - Low Pressure Regulators for Supplying Gas from LPG Cylinders Having Less Than 40 Litres Water Capacity [PDF format (173KB)] Code of Practice Free of Charge EMSD Website
13. Code of Practice GU12 - Installation of Mechanical Exhaust System for Gas Appliances (Rated Heat Input Up to 70 kW) [PDF format (278KB)] Code of Practice Free of Charge EMSD Website
14. Code of Practice GU13 (Module One) - Commercial Gas Dryer Fuelled by Town Gas [PDF format (418KB)] Code of Practice Free of Charge EMSD Website
15. Code of Practice GU13 (Module Two) - Commercial Gas Dryer Fuelled By Liquefied Petroleum Gas [PDF format (938KB)] Code of Practice Free of Charge EMSD Website
16. Code of Practice GU15 - Flexible Gas Tubing for Commercial Applications (Not Including Flexible Gas Tubing for Low Pressure Applications) [PDF format (171KB)] Code of Practice Free of Charge EMSD Website
17. Code of Practice GU 21 - Requirements for Town Gas Installations for Catering Purposes in Restaurants and Food Preparation Establishments [PDF format (403KB)] Code of Practice Free of Charge EMSD Website
*Note:
- Code of practice gives advice on how to comply with the relevant sections of the Gas Safety Regulations.
- Guidance notes give advice in the interest of gas safety.
#Note:
Competent Person for underground gas pipe detection under the Code of Practice “Avoidance of Damage to Gas Pipes 2nd edition” refers to a person who is competent by virtue of his/her training and substantial practical experience in underground gas pipe detection. Apart from the underground gas pipe detection, the competent persons may be required to carry out detection for other underground utilities (such as underground electricity cables). In this regard, reference of the said competent persons can be made to the list of Approved Competent Persons for Locating Underground Electricity Cables via the web link below:

- Approved Competent Persons for Locating Underground Electricity Cables