Verification of passivation - A967 standard interpretation
Verification of passivation - A967 standard interpretation
(OP)
Our company outsources to two passivation companies, both are required to "Passivate per ASTM A967, Nitric 1" and supply certificates. One company has an internal requirement to always verify effectiveness of passivation with each lot and the other will only verify effectiveness of passivation when requested. Both companies certify they meet our requirements even though the one doesn't verify effectiveness. It was my interpretation that in order to meet A967 you have to verify effectiveness with each lot. It's possible the company who does not verify passivation interpreted our requirement as meaning passivate following A967 specs and certify just the passivation process.
Items we need to work through with our vendor and revise requirements as necessary.
My question is, am I interpreting the standard correctly that effectiveness must be done in order to certify that A967 was met?
Thanks
Items we need to work through with our vendor and revise requirements as necessary.
My question is, am I interpreting the standard correctly that effectiveness must be done in order to certify that A967 was met?
Thanks





RE: Verification of passivation - A967 standard interpretation
If they have records of acid concentration, temperature, and times then they can say that they are providing the same process.
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P.E. Metallurgy, Plymouth Tube
RE: Verification of passivation - A967 standard interpretation
I can tell you that we only get a certificate of conformance from this vendor, we do not get a record of their process conditions (section 17.2).
RE: Verification of passivation - A967 standard interpretation
We will not supply process info on the cert.
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P.E. Metallurgy, Plymouth Tube