By rowanjenkins | Last updated 1st May 2024

ASTM D6899 Standard Guide for Laboratory Cyclic Corrosion Testing of Automotive Painted Steel

The purpose of ASTM D6899 is to help in selecting the proper corrosion test techniques for coated steel used in automobiles. Specimens can be cycled from one environment to another and exposed to a wide range of environmental variables during cyclic corrosion testing. To compare the corrosion performance of the two sets, control specimens with a known corrosion performance must be exposed in conjunction with the test specimens in every test.

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    Introduction to ASTM D6899

    Accelerated lab tests for cyclic corrosion simulate changing conditions in car coatings, assessing various corrosion mechanisms. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM E563 tests for our clients. These tests use settings like dry and salty fog to speed up metallic corrosion. ASTM D6899 ensures the test technique doesn’t impact conclusions about investigated variables and helps users achieve good inter-laboratory agreement of results in this type of test.

    ASTM D6899 Test Method

    Compound Corrosion Tests

    CCT IA 5% salt solution must be utilized. The collected solution’s pH should be between 6.5 and 7.2. The exposure cycle lasts 8 hours and usually lasts 200 cycles. There must be a 30-minute ramp time or less.
    CCT IIA 5% sodium chloride salt solution must be utilized. The collected solution’s pH should be between 6.5 and 7.2. There is an 8-hour exposure cycle. 
    CCT IIIA 5% salt solution must be utilized. The collected solution’s pH should be between 6.5 and 7.2. The exposure period usually lasts for 4000 cycles. 
    CCT IVA 5% salt solution must be utilized. The collected solution’s pH should be between 6.5 and 7.2. A single exposure cycle cannot exceed 24 hands for 10 minutes. There must be a 30-minute ramp time or less.

    ASTM D6899 Test Specimen

    Specimen DetailThe kind of specimen and any surface preparations that are required must be outlined in the relevant papers or predetermined by the parties. The specimen should mimic typical production settings and materials.
    Specimen SizeSpecimen size is not specified.

    ASTM D6899 Test Result

    ASTM D6899 is an excellent tool for figuring out which corrosion test techniques are best for painted steel cars. The provision of thorough information and instructions, helps experts choose the proper testing procedures to assess the corrosion resistance of automobile coatings accurately.

    ASTM D6899 Related Tests 

    ASTM D6899 is related to tests including ASTM B117 for operating salt sprays and ASTM D16 for paints and coatings-related terms.

    FAQ's

    Where can I get the astm d6899 tested?

    You can share your astm d6899 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d6899 test to various testing techniques.

    How much do I need to pay for the astm d6899 test?

    Please contact us for a detailed quote for your astm d6899 testing needs. Cost incurred to carry out different astm d6899 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.

    How many samples are required for astm d6899?

    The required number of samples or specimens should comply with the procedure given in the astm d6899 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

    How much discount can I get on the astm d6899 test?

    MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.

    How many days will it take to complete the astm d6899 test?

    The turnaround time for astm d6899 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.

    Where can I get the astm d6899 tested?

    You can share your astm d6899 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d6899 test to various testing techniques.

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