Elcometer 134A Chloride Ion Test Kit for Abrasives

Hi Rob,

You can find lots of information on your question at:
http://www.tqc.eu/en/products/article/221/BRESLE-KIT---CHLORIDE-TEST-KIT

below the product in Xtra Info
http://www.tqc.eu/en/products/xtra_info/221/BRESLE%20KIT%20-%20CHLORIDE%20TEST%20KIT

and the Faqs
http://www.tqc.eu/en/products/faqs/221/BRESLE%20KIT%20-%20CHLORIDE%20TEST%20KIT

Hope this helps,

Best regards,
Raoul

Greetings Guest ...

and, further-to the links already provided (post 1), you can gain a wealth of additional information from the people who make and market Chlor*Rid (<link).

NACE International and SSPC have collaborated on numerous Joint Standards pertaining to protective coatings, and offer tremendous volumes of information in their training courses (e.g., Certified Coating Inspector).

It appears that you are addressing ONE aspect of proper coating application with great gusto. <applause>

Just in case you have NOT taken advantage of the "full-deal-meal" of education in proper selection and application of today's high-tech coatings ... you may wish to investigate all the OTHER aspects which are likewise testable/quantifiable.

Best of luck to you ~

Dear Friends,

Thank you for your kind posts. I am currently reviewing the information on the links (especially the posts on the pages that have research findings for acceptable salt levels on abrasive media). I have participated in NACE CIP and have some experience with the QA/QC details required for warranties to be issued for internal vessel coatings, but I am not keen on the specific concern of abrasives and the maximum safe level of Chloiride Ions for high temperature immersion service (this is an important point when dealing with applications around the world, as salt levels on abrasives differ widely from region to region - Indian garnet being the worst offender in my experience).

Still looking for a specific standard for this (if anyone is aware of one), which provides a guide to the maximum acceptable level of Chlorides on blasting abrasives for this service.

Thanks again.

Kindly,

Robert

Greetings again --- With all due respect, if you have gone through CIP, then you should be aware that either the manufacturer or the author of the Coating Specification should have identified the allowable concentration of chlorides on the (prepared) surface;

Depending upon the coating SYSTEM ... whether it involves a Sacrificial primer, an Inhibitive primer, or a Barrier primer ... whether there is an Intermediate coat ... and what the Final coat consists of (e.g., the type of pigment) ...

...the allowable concentration may VARY... depending ALSO upon what the total DFT (dry film thickness) is specified to be. That should NOT be up to YOU to ascertain, based on your own intuition, or whatever answers you might receive from "strangers" on this Forum.

Please consult the coating system manufacturer, addressing ALL preparation factors (including Profile measurements) and the anticipated Exposure factors over the anticipated life of the coating system, and THEY should be able to offer a maximum allowable concentration on the (prepared) surface.

Wishing you Maximum Success ~

Dear Robert,

There are two standards that may help you in this case: ISO 11127-6 and ISO 11127-7, but in the end it will be necessary to test the surface prior to coating and verify if the measured levels fall within the limits supplied by the coating manufacturer. When measuring please note that chlorides ions and soluble salts are not the same, for the difference I refer to the paragraph "Misunderstanding of what is actually measured" in the press release of the TQC Direct Sample Procedure (DSP).

Best regards,

Raoul

Dear Friends,

Thank you again for the information posted (especially for the standards mentioned, Raoul). I believe this is what I was searching for. Thank you for the guidance as well Tom. I appreciate it, really. My situation is a bit different from some other coating inspectors. I work for a family owned manufacturer of coatings, where we specify the use of Elcometer 134S with a maximum allowable level for Chlorides on the substrate for warranty work. My role is not only as inspector, but also as a supervisor on the applications (I know this seems like a mess for proper NACE CIP guidelines, but this is my job at the moment). I am meant to facilitate the smooth progress of every job I am a part of, in the interest of our manufacturing company, the independent distributor, and of course the end user. This means any resources that can be better used would improve our business.

I write method statements for our warranty applications and we always use the test for substrates (be certain there is no desire to change this, only to add to it). The test for abrasives would only compliment this process by allowing our inspectors/supervisors to measure the concentrations and reject abrasives as agreed on a method statement, before ever having to blast (or re-blast after a DI water wash) and attempt to figure out which is to blame - the abrasive or the steel. Even when it is the abrasive, I have seen abrasives that test positive for the Chloride Ion but not deposit any detectable Chlorides on the substrate (so my concern was to find is there was already work carried out to determine a safe working range).

Sulphates and Nitrates certainly are of concern with some vessels (especially if they have been in sour service, but most of these jobs are new fab and they have not been exposed to them). From our experience, other ions (such as Fe) are not a great concern in this field for us either (typically only in water/waste-water applications, not in the oil & gas industry). I was not sure if there was already a standard or spec for this by the military or any other. I figured I would save some of the headaches with R&D when dealing with all the possible variables (different abrasives, pressures used to blast, humidity levels, and temperature). I fear they would neglect to conduct investigations to produce a recommended safe value considering them.

I admit, I did believe this was a shot in the dark (asking for such a specific standard on this forum), but both of you have helped me. Thanks again. I wish you both the best as well.

Sincerely,

Robert

Dear Robert,

My pleasure of course, in case of warrenty work you may be interested in using the TQC Bresle Kit - Chloride Test Kit as it now comes with the Direct Sample Procedure (DSP), which would give you an advantage when it comes down to the accuracy of the measured results. The advantages of this new procedure that fully complies with the ISO standards ISO 8502-6, ISO 8502-9 are:

DSP advantages:
Acc ISO 8502-6 & ISO 8502-9
60 times more accurate
Significant increase in reproducibility
Less water required and less waist generated
No more calculation factor for ISO 8502-9 (NaCl)
In range calibration
Worlds only ISO 17025 certified patches.
The ultimate kit for arbitrary cases

If case you need to control the cleanliness in general you may be interested in the TQC Pre-treatment Test Kit (PTK), if you have any other questions about this subject please contact me at raoul at tqc dot eu.

Best regards,
Raoul Kleinveld