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The Autoclave test is designed to simulate conditions in pressurized pipelines, treaters, and vessels. It measures the ability of the test samples to withstand the simulated service environment. The product that demonstrates the least amount of reaction, is considered the most reliable for use in that particular service.
Test can be run at pressures up to 10,000 psi and temperatures to 400 F/205 C . Tests can utilise supplied fluids and gases but generally standard mixtures are used including H2S to simulate sour service. Tests are conducted to standard NACE (or other as requested) procedures.
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The Atlas Cell test is an accelerated laboratory method used to evaluate the corrosion controlling properties of an organic coating exposed to a chemically aggressive environment. The test method also evaluates a coating's ability to withstand a temperature gradient that exists between the internal and external surfaces of a coated substrate as found in the interior of non-insulated industrial tanks or marine vessels, which experience what is termed the "cold wall effect". Our test vessels have external cooling jackets so that the thermal gradient can be controlled. Tests are conducted to standard NACE (or other as requested) procedures. |
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The Pressurized Atlas Cell test is designed to simulate conditions in pressurized pipelines, treaters, and vessels. It measures the ability of the coating to withstand the temperature gradient between the internal and external surface (cold wall effect) under the influence of pressure, temperature, and the internal environment. The product that demonstrates the least amount of reaction, is considered the most reliable for use in that particular service. Test can be run at pressures up to 1,500 psi and temperatures to 300 F/149 C. Tests can utilise supplied fluids and gases but generally standard mixtures are used including H2S to simulate sour service. |
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The Cathodic Disbondment test examines the ability of a coating under immersion conditions to withstand the stresses imposed by an electric potential which at holidays in the coating (deliberately made for the test) creates local reaction resulting in a highly caustic environment. This test simulates conditions on pipelines where cathodic protection is being used. The temperature of the fluids in which the samples are immersed and the potential for the test can be varied in order to better simulate field conditions and determine the resistance of the coating to disbondment around the initial holiday. Tests are conducted to ASTM, CSA or other standard procedures. |
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The Soak Adhesion test examines changes in adhesion properties of coatings after immersion in aqueous conditions, usually at elevated temperatures. This is an excellent screening test for coatings that are going to be used in immersion service. The temperature and duration of the immersion can be varied but standards are usually employed that allow for comparison with other published data. |
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Non-Immersion
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The Flexibility test examines the resistance of the coating to bending of the substrate. This is particularly important for coatings on pipelines that will be bent in the field and for coatings in vessels that are subject to movement (such as the floors of some storage tanks). In addition to the degree of bend the temperature of test is also varied to better simulate field conditions as appropriate. Tests are conducted to ASTM, CSA or other standard procedures. |
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The Alyeska Shear test examines the resistance of a pipeline coating to shear stresses that can be experienced in the field during service of the pipeline or during backfill. The test is used for sleeve and tape joint coatings and for multi-layer polyolefin products. We have the ability to mount the apparatus in an oven so that tests can be conducted at the maximum operating temperature of the pipeline. |
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The Peel test measures the adhesive strength of polyolefin based pipeline coatings. The test simulates stresses that will tend to pull the coating from the pipeline. As with the shear test the temperature of the test makes a very big difference to the adhesive strength of the coating and we recommend testing at the maximum expected temperature of the pipeline. |
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The Penetration test measures the resistance of coatings to penetration from a pressure applied at a point of known size. The test is used for various coatings including pipeline coatings where there may be concerns about the resistance of the coating to damage from rocks or similar objects pushing on the pipe during service. |
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The Salt Fog (Salt Spray) test is a standard in the industry examining the resistance of a coating to effects from salt water. This test is particularly valuable for examining coatings that are going to be used in marine applications where there is a lot of salt water. The considerable use of this test in the past also means that the data from this test is useful for comparative purposes. Many regulatory bodies and some companies also require that coatings be put through standard salt spray testing. |
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The UV-resistance test (often referred to as QUV testing because of the wide use of their apparatus) examines the resistance of coatings to the effect of sunlight and humidity. The apparatus creates cycles of light (different light sources are used to examine resistance to different wave lengths) and humidity over an extended period. This test has become a widely used standard for external maintenance coatings and has been shown to correlate well with in service performance of maintenance coatings. |
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