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Requirement Steel Substrate Conductivity

Requirement Steel Substrate Conductivity

(OP)
Dear All,
I feel free to discuss to all expert.
Why to required conductivity of steel substrate BEFORE surface cleaning (water jetting or sand blasting).

RE: Requirement Steel Substrate Conductivity

I don't recall seeing a requirement to check conductivity of a steel surface prior to grit blasting. Can you provide an example where this requirement exists?

RE: Requirement Steel Substrate Conductivity

(OP)
Dear tbuelna,
in my client particular specification required before sand blasting process.
requirement max. 50 micro gram.
for your info, our coating process for pipeline coating 3LPP.

RE: Requirement Steel Substrate Conductivity

Sounds like an odd requirement. Who cares about coating conductivity if you're removing it anyway. Should be checked after coating.

RE: Requirement Steel Substrate Conductivity

IRstuff...all the more odd. Sounds like someone was trying to develop a holiday detection spec but didn't know what they were doing.

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