4.12 Anti-corrosion Work
4.12.1 Fiber glass reinforced plastics anti-corrosion.
1 Scope of application：tank，groove，pool，ditch，etc.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.12.1.
Table 4.12.1 Fiber glass reinforced plastics anti-corrosion
Table 4.12.1（Continued）
4.12.2 Spray painting anti-corrosion.
1 Scope of application：tank，groove，slot，etc.
2 Check quantity：check them one by one or in sections.
3 Quality standards and inspection methods are as shown in Table 4.12.2.
Table 4.12.2 Spray painting anti-corrosion
Table 4.12.2（Continued）
4.12.3 Rubber liner anti-corrosion.
1 Scope of application：tank car，storage tank，exchanger，degasser，metering tank，acid cleaning tank，etc.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.12.3.
Table 4.12.3 Rubber liner anti-corrosion
Table 4.12.3（Continued）
Table 4.12.3（Continued）
4.12.4 Pipe liner anti-corrosion.
1 Scope of application：carbon steel and cast iron pipe fittings.
2 Inspection quantity：check them one by one.
3 Quality standards and inspection methods are as shown in Table 4.12.4.
Table 4.12.4 Pipe liner anti-corrosion
Table 4.12.4（Continued）
4.12.5 Plastic-coated composite steel pipe connector mouth repair.
1 Scope of application：sea water and corrosive medium delivery pipes.
2 Inspection quantity：check the pipe mouth one by one.
3 Quality standards and inspection methods are as shown in Table 4.12.5.
Table 4.12.5 Plastic-coated composite steel pipe connector mouth repair
Table 4.12.5（Continued）
4.12.6 Installation of sacrificial anode.
1 Scope of application：sea water equipment and pipes.
2 Inspection quantity：randomly check of 10% for the parts of every batch（when arrived）and check one by one when installing.
3 Quality standards and inspection methods are as shown in Table 4.12.6.
Table 4.12.6 Installation of sacrificial anode
Table 4.12.6（Continued）
4.12.7 Installation of impressed current cathodic protection.
1 Scope of application：sea water equipment and pipes.
2 Inspection quantity：check them with the constant potential instrument one by one，check the electrode randomly by 10%.
3 Quality standards and inspection methods are as shown in Table 4.12.7.
Table 4.12.7 Installation of impressed current cathodic protection
Table 4.12.7（Continued）
