Contents
1 Scope
2 Normative references
3 General requirements
4 Preparation of construction
5 Materials
6 Construction process
7 Precasting processing
7.1 General requirements
7.2 Soleplate precasting
7.3 Wallboard precasting
7.4 Vault precasting
7.5 Precasting of inner suspending roof
7.6 Precasting of other elements
7.7 Delivery inspection
8 Recheck of the foundation and outer reinforced concrete tank
8.1 Recheck of foundation
8.2 Recheck of outer reinforced concrete tank
9 Assembly of tank bottom
9.1 General requirements
9.2 Assembly of overlapped tank soleplates
9.3 Assembly of butt joint soleplate in tank
9.4 Assembly of inner double-layer low-temperature storage tank bottom
10 Assembly of tank shell
10.1 General requirements
10.2 Assembly of tank shell
11 Assembly of tank deck
11.1 Central support method
11.2 Air-lifting method
12 Installation of appurtenance
12.1 Installation of pipe at open pore of tank shell
12.2 Installation of other appurtenances
13 Welding
13.1 General requirements
13.2 Management of welding materials
13.3 Welding requirements
13.4 Welding sequences and methods
13.5 Repairing
14 Cold insulation
14.1 General requirements
14.2 Cold insulation of tank bottom
14.3 Cold insulation of tank shell
14.4 Cold insulation of pipelines in tank
14.5 Cold insulation of inner suspending roof
15 Inspection and test
15.1 Inspection of weld appearance
15.2 Nondestructive test and leakage test of weld
15.3 Geometric shape and dimension inspection of tank shell
15.4 Test of tank body
16 Engineering acceptance
Appendix A (Informative) Several Typical Structures of Low-temperature Storage Tank
Appendix B (Informative) Construction Process Flow | 
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