https://www.youtube.com/watch?v=j3GsM6FRFmQ&ab_channel=ElcometerInspectionEquipment-CoatingsIndustry

Dear Dr. Atik Islam ,

it is not easy to answer your question (a bit generic) as there are many specific types of ASTM Standards to test / characterize the conformity of the different characteristics of an ED Costing on a pipe, which I suggest you take a look at, for example :

-Test Methods for Coating Adhesion by DeFelsko

Available at: https://www.defelsko.com/resources/test-methods-for-coating-adhesion

-International Standard by elcometer

Available at: https://www.elcometer.com/en/international-standards.html

-QUALIFICATION TESTS FOR PAINT SYSTEMS by Petrobras

Available at: https://canalfornecedor.petrobras.com.br/media/filer_public/3c/4f/3c4f59d1-c85a-46ea-9706-3e9de5b67bdf/i-et-301000-1200-956-p4x-001_0_prelim.pdf

-ASTM Designation: B487−85 (Reapproved 2013)

Standard Test Method forMeasurement of Metal and Oxide Coating Thickness byMicroscopical Examination of Cross Section

Available at: https://www.galvanizeit.com/uploads/ASTM-B-487-yr-87-R-13.pdf

and so on...

My best regards, Pierluigi Traverso.

Dear Sir Pierluigi Traverso,

We need most of Water, Alkali , and Acid Resistance ED point.

Do you tell me how can I check the quality of ED Coated tube which resist from

Water, Alkali , and Acid Environment.

Dear Dr. Atik Islam ,

if you wish to test according to regulations, you can find some useful guidelines at the following web sites:

-ASTM D1654 by MICOM inc. Laboratories

Available at: https://www.micomlab.com/micom-testing/astm-d1654/

-Chemical Resistant Coatings: Types and Standard Tests by SpecialChem

Available at: https://coatings.specialchem.com/coatings-properties/chemical-resistance

-Selecting the right corrosion test for your HVAC/R protective coating by HERESITE Protective Coatings

Available at: https://www.heresite.com/selecting-the-right-corrosion-test-for-your-hvacr-protective-coating/

-D870 Standard Practice for Testing Water Resistance of Coatings Using Water Immersion by Paint Square

Available at: https://www.paintsquare.com/standards/?fuseaction=view&id=1758

-ASTM D870 - 15(2020)

Standard Practice for Testing Water Resistance of Coatings Using Water Immersion

-ASTM D6943 - 15(2019)

Standard Practice for Immersion Testing of Industrial Protective Coatings and Linings

In practice, in this type of immersion test, you should evaluate the degradation of the coating, for a given immersion time by comparing the characteristics to those of the unexposed product.

These measurements should be replicated for each type of environment that you have indicated, following, as already indicated, well-defined procedures and methodologies (for example you could calibrate defects on some samples to see how they evolve).

You could also use electrochemical tests, but it is necessary to have quite specific skills and equipment, which not all laboratories have and are, for the most part, used for research purposes.

Below I am attaching a last link for ASTM regulations selection:

-Corrosion Standards and Wear Standards by ASTM International

Available at: https://www.astm.org/Standards/corrosion-and-wear-standards.html

Good luck and my best regards, Pierluigi Traverso.

Dear Pierluigi Traverso Sir,

Thank you for suggest me.

-D870 Standard Practice for Testing Water Resistance of Coatings Using Water Immersion by Paint Square

This is important for me , but I could not download this. Could you help me Sir.

Dear Dr. Atik Islam ,

you can try to have a look at the following web. site by Paint Square:

-Paint and Coatings Industry Standards

D870 Standard Practice for Testing Water Resistance of Coatings Using Water Immersion

Available at: https://www.paintsquare.com/standards/?fuseaction=view&id=1758

My best regards, Pierluigi Traverso.