No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Inspection post passivation for closed / non visible systems

March 2, 2009

In ASTM A380 , several methods are suggested for inspection of cleanliness post passivation: Visual inspection; wipe tests; residual pattern; water-break test; free iron test such as water-wetting or drying; high-humidity test; and copper sulphate ⇦ this on eBay or Amazon [affil links] test. Precision inspection shall be performed by solvent-ring test, black light inspection, atomizer test, and ferroxyl test.

How can a closed system be inspected for proper cleanliness and passivation where most areas are not accessible to the eye or a boroscope without breaking the system open?

Thanks,

Arnaud Serfass
Director, Life Sciences - Singapore

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: