SY/T 4113.13-2024 Pipeline anti-corrosion coating test methodPart13: Aging resistance test English, Anglais, Englisch, Inglés, えいご
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ICS
E
Professional standard of the People's Republic of China
SY/T 4113.13-2024
Replaces SY/T 0085-2012
Pipeline anti-corrosion coating test methodPart13: Aging resistance test
管道防腐层性能试验方法 第13部分 耐老化性能测试
(English Translation)
Issue date: 2024-09-24 Implementation date: 2025-03-24
Issued by National Development and Reform Commission, P.R.C
Contents
1General provisions
2Terms
3Basic requirements
4Before surface preparation
4.1Condition evaluation of the surface to be prepared
4.2Selection of the preparation method and determination of preparation grade
4.3 Procedure qualification test
5 Preparation requirements
5.1General regulation
5.2Cleaning
5.3Tools derusting
5.4Dry spray derusting
5.5Wet spray derusting
5.6High-pressure water derusting
5.7Pickling
6 Assessment of the prepared surface
Explanation of wording in this code
List of quoted standards
Addition : Explanation of provisions
Test Methods for Properties of Pipeline Anti-corrosion Coatings — Part 13: Weathering Resistance Performance Test
1 Scope
This document specifies the basic requirements for the equipment, test specimens, test procedures, and calculations for testing the light aging resistance, heat aging resistance, and natural climate aging resistance performance of steel pipeline anti-corrosion coatings.
This document applies to the testing of light aging resistance, heat aging resistance, and natural climate aging resistance performance of pipeline anti-corrosion coatings. The weathering resistance performance testing of anti-corrosion coatings for storage tanks and equipment may refer to this document.
2 Normative References
The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 1040.1 Plastics — Determination of tensile properties — Part 1: General principles
GB/T 1040.2 Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and extrusion plastics
GB/T 1040.3 Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
GB/T 1735 Paints and varnishes — Determination of heat resistance
GB/T 1766 Paints and varnishes — Rating scheme for degradation of coatings
GB/T 1845.2 Plastics — Polyethylene (PE) moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties
GB/T 1865 Paints and varnishes — Artificial weathering and exposure to artificial radiation — Exposure to filtered xenon-arc radiation
GB/T 2546.2 Plastics — Polypropylene (PP) moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties
GB/T 2792 Test method for peel strength of adhesive tapes
GB/T 3682.1 Plastics — Determination of melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics — Part 1: Standard method
GB/T 9276 Methods of exposure to natural weathering of coatings
GB/T 15596 Plastics — Determination of changes in colour and variations in properties after exposure to glass-filtered solar radiation, natural weathering or laboratory radiation sources
GB/T 16422.2 Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
GB/T 16422.3 Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
GB/T 20027.1 Rubber- or plastics-coated fabrics — Determination of bursting strength — Part 1: Steel-ball method
GB/T 23987 Paints and varnishes — Exposure of coatings to artificial weathering — Exposure to fluorescent UV lamps and water
SY/T 0414 Technical standard of polyolefin adhesive tape coating for steel pipeline
SY/T 4113.2 Test methods for properties of pipeline anti-corrosion coatings — Part 2: Peel strength test
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
exposure to natural climate
A test in which the anti-corrosion coating is placed in a natural environment, subjected to the combined effects of various climatic factors, and its performance changes over time are observed.
3.2
Backing
A non-porous panel, typically made of plywood, installed on the natural climate exposure rack for placing test specimens.
4 Equipment
4.1 Ultraviolet Accelerated Weathering Tester
For testing plastic-type samples, the ultraviolet accelerated weathering tester shall comply with the requirements of GB/T 16422.3. For testing coating-type samples, the ultraviolet accelerated weathering tester shall comply with the requirements of GB/T 23987.
4.2 Xenon Lamp Test Chamber
For testing plastic-type samples, the xenon lamp test chamber shall comply with the requirements of GB/T 16422.2. For testing coating-type samples, the xenon lamp test chamber shall comply with the requirements of GB/T 1865.
4.3 Electric Heating Blast Drying Oven
Temperature control accuracy: ±2°C.
4.4 High Temperature Furnace
Temperature control accuracy: ±5°C.
4.5 Natural Climate Exposure Rack
4.5.1 The natural climate exposure rack shall be constructed from inert materials that do not affect the test results, such as wood, reinforced concrete, aluminum alloy, or steel coated with anti-corrosion paint. The structure shall be sturdy enough to withstand local maximum wind forces.
4.5.2 The construction of a flat-type natural climate exposure rack should comply with the requirements of GB/T 9276 and as shown in Figures 1, 2, and 3. A fixed-angle exposure rack should comply with the requirements shown in Figure 1. An adjustable-angle exposure rack should comply with the requirements shown in Figure 2. The construction of a natural climate exposure rack for tubular test specimens should comply with the requirements shown in Figure 3.
4.5.3 Test specimens within the flat-plate specimen exposure rack shall be insulated from metal and should not come into contact with wood or porous materials. Porcelain insulators should be used to fix the specimens (see Figure 1). The porcelain insulators shall be fixed onto the rack surface. Anti-corrosion coating specimens with a metal substrate shall be placed in the grooves of three porcelain insulators and be capable of moving up and down.
4.5.4 The flat-plate specimen exposure rack should face the equator and expose the specimens at a 45° angle to the horizon. If the plate surface is required to receive maximum solar radiation, the exposure rack surface should be positioned at an angle equal to the local latitude relative to the horizon.
4.5.5 The pipe-section specimen exposure rack shall ensure that the pipe sections are placed horizontally.
4.5.6 The racks shall be positioned to allow free air circulation around them, should not block sunlight from one another, and shall be spaced at intervals of not less than 1 m.
4.5.7 The bottom edge of the exposure rack should be not less than 0.5 m above the ground.
4.6 Melt Flow Rate Tester
Shall comply with the requirements of GB/T 3682.1.
4.7 Tensile Testing Machine
Shall comply with the requirements of GB/T 1040.1.
4.8 Peel Strength Test Device
