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

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Table 4.12.1(Continued)

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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

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Table 4.12.2(Continued)

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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

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Table 4.12.3(Continued)

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Table 4.12.3(Continued)

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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

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Table 4.12.4(Continued)

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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

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Table 4.12.5(Continued)

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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

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Table 4.12.6(Continued)

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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

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Table 4.12.7(Continued)

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