Technical standard of chlorosul fonated polyethylene external coating for steel tank

This standard applies to the design, construction and acceptance of chlorosulfonated polyethylene outer anti-corrosion coatings for steel storage tanks with a storage medium temperature not higher than 100°C. When other steel structures or cement structures use chlorosulfonated polyethylene coatings as outer anti-corrosion coatings, this standard can also be used as a reference. SY/T 0320-1998 Technical Standard for Chlorosulfonated Polyethylene Outer Anti-corrosion Coatings for Steel Storage TanksSY/T0320-1998 Standard download decompression password: www.bzxz.net
This standard applies to the design, construction and acceptance of chlorosulfonated polyethylene outer anti-corrosion coatings for steel storage tanks with a storage medium temperature not higher than 100°C. When other steel structures or cement structures use chlorosulfonated polyethylene coatings as outer anti-corrosion coatings, this standard can also be used as a reference.

Technical standard of chlorosul fonatedpolyethylene external coating for steel tankSY/T 0320-98
Editor: China National Petroleum Corporation Engineering Technology Research Institute Approval Department: State Petroleum and Chemical Industry Bureau Petroleum Industry Press
1999 Beijing
Chlorosulfonated polyethylene coating
Grade and structure of anti-corrosion layer
Construction of anti-corrosion layer
General provisions
Surface pretreatment
Coating preparation
Coating process
5 Quality inspection of anti-corrosion layer
5.1 General provisions
5.2 Quality inspection during construction
5.3 Final quality inspection of anti-corrosion layer
6 Repair, recoating and repainting
Current safety and environmental protection
8 Handover documents.
Appendix A Test method for impact strength of coating
Appendix B
Test method for ultraviolet aging resistance of coating
Appendix Test method for freeze-thaw cycle resistance of coating
Explanation of standard words and terms
Appendix, Explanation of technical standards for chlorosulfonated polyolefin external anti-corrosion layer of steel storage tanks
Document of State Administration of Petroleum and Chemical Industry
State Petrochemical Government (1999) No. 93
Notice on Approval of 45 Oil and Gas Industry Standards including "Specifications for Construction and Acceptance of Oil and Gas Pipeline Engineering"
China National Petroleum Corporation:
The draft of 45 oil and gas industry standards including "Specifications for Construction and Acceptance of Oil and Gas Pipeline Engineering" submitted by your company has been approved by our bureau and is now published. Standard name and number:
Mandatory standard
SY 0401-98
SY 0453-98
SY 5131—1998
SY 6360--1998bZxz.net
Recommended standard
SYrT031898
Specification for construction and acceptance of oil and gas pipelines (instead of SYJ4001--90)
Quality inspection and assessment standard for oil construction projects Oilfield gathering and transportation pipeline projects (instead of SY4053-93) Safety regulations for radiation protection of radioactive well logging for petroleum (instead of SY5131-87)
Safety regulations for exploitation of oil and gas injection products
Technical standard for isolation of oil floating equipment
SY/T 031998
SY/T 032098
SY/T 0379—98
SY/T 040398
SY/T 040498
SY/T 041498
SY/T 044398 :
SYT 044498
SY/T 0469--98
SY/T 05101998
SY/T 50721998
SY/T51061998
Technical standard for inner anticorrosion layer of liquid epoxy coating for steel storage tanks
Technical standard for outer anticorrosion layer of chlorosulfonated polyethylene for steel storage tanks
Technical standard for outer anticorrosion layer of coal tar enamel for buried steel pipelines (replacing SYT 0079--93
Oil pump group construction and acceptance specifications (replace SYJ4003-90)
Heating furnace construction and acceptance specifications (replace SYJ 4004-90)
Steel pipeline ethylene adhesive tape anti-corrosion layer technical standard (replace SYJ 4014-93)
Normal pressure steel welded storage tank and pipeline penetration detection technical standard (replace SYJ4043-89)
Normal pressure steel welded storage tank and pipeline magnetic particle detection technical standard (replace SY14044-89)
Petroleum construction project quality inspection and assessment standard Oilfield steel container and heating furnace production (replace SY/I406993)
Steel butt welding pipe fittings (replace SY7510-87)General technical conditions for petroleum engineering vehicles (replace SY 507285)
General technical conditions for packers for oil and gas fields (replacing SY 5106—86)
SY/T 5170--1998
SY/I 53591998
SY/T 53671998
SY/r 5550—1998
SY/T 55661998
SY/T56291998
SY7T 6358--1998
SY/T 6361--1998
SY/T 6362--1998
SY/T 6363—1998
SY/T 63641998
SY/T 6365-—1998
SY/T 63661998
SY/T 63671998
Specification for steel wire rope for petroleum and natural gas industry (replaces SY 5170-92, SY 5028-91)Crude oil demulsifier SP169 (replaces SY5359-89)
Method for calculating recoverable reserves of petroleum (replaces SY5367-89)
Hollow sucker rod (replaces SYT5550-92)Low energy crude oil water content analyzer (replaces SYT556693)
Classification and model compilation method of downhole tools for oil and gas production (replaces SY 5629--93)
Guidelines for health, safety and environmental management systems in oil and gas field operations
Guidelines for health, safety and environmental management systems in oil and gas well operations
Technical requirements for unstable well testing
Methods for describing reservoir fluid properties and distribution
Methods for determining original formation pressure and pressure system in oil and gas reservoirs
Main production technical indicators and calculation methods for oilfield development
Procedures for inspection, maintenance, repair and restoration of drilling equipment
SY/T 6368-1998
SY/T 6369-1998
SY/T 6370-1998
SY/T 6371--1998
SY/T 6372-1998
SY/T 6373--1998
SY/T 63741998
SY/T 6375—1998
SY/T 6376-1998
SY/T 6377--1998
SY.T 6378—1998
SY/T 63791998
SY/T 6380---1998
SY/T 6381--1998
Underground metal pipeline anti-corrosion layer leak detector
Core oil and water saturation tester
Core gas permeability tester
Ground capsule detector tester General technical conditions CNC production logging surface instrument
Economic operation specification of power supply and distribution system in oil and gas fields Economic operation of mechanical oil production system
Technical guidelines for comprehensive utilization of energy in oil enterprises General technical conditions for fracturing fluid||tt| |Fish top printing operation method
Oil and water well casing extraction and tie-back process
Granular profile control agent performance evaluation method
Gel breaking performance test method for sweat cracking
Recruitment Hot furnace heat positive measurement (replace SY7S05-
above standards It will be implemented from October 1, 1999. State Administration of Petroleum and Chemical Industry
March 3, 1999
This standard is based on the requirements of (97) Zhongyou Jijianzi No. 42 , edited by the Engineering Technology Research Institute of China National Petroleum Corporation, and participated in the compilation by the No. 1 Oil Construction Company of Shengli Petroleum Administration Bureau.
During the compilation process of this standard, the members of the compilation team followed the relevant national policies and guidelines, We conducted extensive research and summarized the design and construction experience of the external anti-corrosion layer of steel storage tanks in the oil industry over the years, and formed a draft for soliciting opinions. We widely solicited opinions from relevant units and experts through letter review and joint review. The main issues were revised repeatedly and finally the petroleum engineering construction professional The Standardization Committee will review and finalize the draft together with relevant departments.
The main contents of this standard include: general principles, chlorosulfonated polyethylene coating, anti-corrosion layer grade and structure, anti-corrosion layer construction, anti-corrosion layer quality inspection, repair, recoating and Repainting, health, safety and environmental protection, delivery data, etc. This standard is interpreted by the Engineering Technology Research Institute of China National Petroleum Corporation.
Contact address: No. 40, Jintang Road, Tanggu, Tianjin, Postal Code 300451. This standard Chief editor: China National Petroleum Corporation Engineering Technology Research Institute.
Participating units of this standard: Shengli Petroleum Administration Bureau Oil Construction No. 1 Company. Main drafters of this standard: He Jiang, Zhang Qibin, Liu Derun, Li Lijun, Ma Xueli
1. To ensure the steel storage This standard is specially formulated to improve the quality of the chlorosulfonated polyethylene outer anti-corrosion layer of steel storage tanks and extend the service life of steel storage tanks. 1.2 This standard is applicable to chlorosulfonated polyethylene steel storage tanks with a storage medium temperature not exceeding 100 Design, construction and acceptance of external anti-corrosion coating. Other steel structures or cement structures that use chlorosulfonated polyethylene coating as external anti-corrosion coating can also be used as a reference. In addition to complying with the original specifications, the design, construction and acceptance shall also comply with the relevant mandatory standards currently in force in the country.
2 Chlorosulfonated Polyolefin Coatings
2.0.1 Chlorosulfonated The primer, topcoat (intermediate paint), curing agent, diluent and other materials of polyethylene coating should match each other and should be supplied by the same manufacturer. The colors of primer, intermediate paint and topcoat should be different. 2.0.2 The performance index of chlorosulfonated polyethylene material shall be in accordance with the requirements of Table 2.0.2-1. The performance index of the anti-corrosion layer shall be in accordance with the requirements of Table 2.0.2-2. Table 2.0.2-1 | |tt||Solid content (%)
! Drying time
Loss (h)
Actual (h)
Viscosity (divided by -4) (s)
Fineness (μm)||tt| |Flexibility (mm)
Adhesion (grade)
Impact strength (J)
Performance index of oxysulfonated polyethylene coating
40 -- 70|| tt||Topcoat (intermediate paint)
50~100
Test method
(13/11725-1979 (method A)
G13/r 1728—1979
G31723—1993 (Z method)
GB/T 1724—1979
GB/T 1731—1993
CB/T 1720—1979
Appendix A to this standard
2.0.3 The coating should be packed in good condition when shipped out, and the product name, model, net weight, The manufacturer should provide the product manual, which should include the coating technical indicators, the proportion of each component, the use of the coating after preparation, etc. period, coating method, reference dosage, precautions during transportation and storage, etc., as well as the most certified The inspection report issued by the inspection organization, the inspection items and results should comply with the provisions of Table 2.0.2-1 and Table 2.0.22.
Table 2.0.2-2 Performance index of sulfonated polyethylene anticorrosion layer
Tower resistance (mg) (500r/500g)
Electrical strength (MVm)
Volume resistivity (Qm)
Salt spray resistance (500h)| |tt||Water resistance (100h, 80t:)
10%HS04 (60℃, 100h
Wet chemistry
Dielectric properties
≥1×101l
No change in the coating
No change in the coating||tt| |10%Na0H (60℃, 100h) coating no change 5%NaC1 (60, 100h)
UV aging resistance [400h]
Melting cycle (-20℃.± 2℃ , normal
temperature, 70℃±2℃ for 6h each, 5 cycles
Test method
GB/T 1768—1979
GB/T 1408-1989| |tt||GB/T 1410---1989
GB/T 1771—1991
GT 1733—1993
GB/T 1763---1979
Appendix to this standard
Appendix to this standard［
2.04 User Sampling should be carried out in accordance with the provisions of GB3186 "Sampling of Coating Products" and inspection should be carried out according to the items specified in Table 2.0.2-1. The results should meet the indicators specified in Table 2.0.2-1. If unqualified, double sampling should be carried out for re-inspection. If it still fails to meet the standards, the batch of coating is considered unqualified and cannot be used.
2.0.5 The coating storage validity period should be no less than 1 year. Users should store the coating in accordance with the conditions specified in the manufacturer's product manual and store it within the validity period. Use: For paints that have exceeded their validity period, re-sample them according to the provisions of GB3186 and test them according to the items specified in Table 2.0.2-1. If the results meet the requirements of Table 2.0.2-1, they may continue to be used. 3.0,1
The grade and structure of the chlorosulfonated polyethylene outer anticorrosion layer should be determined according to the specific requirements of different corrosion environments and anticorrosion projects, as shown in Table 3.0. 1. Table 3.0.1 Anti-leaving house grade and structure
Ordinary grade
Reinforced grade
Primer Primer One-side paint One-side paint
Primer-primer-primer-one paint-topcoat-topcoat primer-primer-topcoat-topcoat-topcoat-primer-primer-middle paint-middle paint-topcoat-topcoat| |tt||Dry film thickness (en)
In severe corrosive environments or when necessary, the number of topcoat layers can be increased. 4 Anti-corrosion layer construction
4.1 General provisions
4.1.1 The construction of the anti-corrosion layer can be carried out only when the following conditions are met: The anti-corrosion design and relevant technical documents are complete: 1
2 Anti-corrosion construction is completed The plan and technical disclosure were carried out, and safety technology education and necessary technical training were carried out;
3 Materials, machines, testing instruments, construction facilities, etc. are complete and intact: 4 Protection facilities are safe and reliable, and water, electricity, gas, etc. for construction are energy-efficient. Meet the needs of continuous construction;
5 Steel storage tanks and their accessories should be installed and inspected to be qualified. 4.1.2 During the construction of the anti-corrosion layer, welding, gas cutting, direct knocking and other operations are strictly prohibited. .
4.2 Surface pretreatment
4.2.1 If there is oil stain and dirt on the outer surface of the steel storage tank, it should be cleaned according to the cleaning method specified in the "Specification for Steel Surface Pretreatment before Painting SYT0407" . 4.2.2 The outer surface of the steel tank should be sprayed for rust removal according to the method specified in SY/T0407. The rust removal level should reach Sa2 level specified in GB/T8923 "Surface rust level and rust removal level of steel before painting". The depth of anchor pattern should be 15~35um. 4.2.3 After blasting, the surface should be cleaned with dry, clean, oil-free compressed air.
4.2.4 After blasting and rust removal, the defects revealed on the steel surface and welds must be treated.
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