Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Oil free stainless?




I work for a small company and we specify that our suppliers deliver their stainless steel machined parts(303 or 416 generally)in an "oil free state". Is there a way to verify that these parts are indeed machine oil free ?

Mike Caruso
Q.E. medical device manufacturer - Islandia, New York, USA
2006



I'm sure SSPC and NACE have official tests, but try 1) wiping with white cloth and 2) water break - water beed or flow off.
regards,

Jim Wood
- Concord, California, USA
2006



2006

Mike:

To get a quantifiable result, you can use the Non-Volatile Residue (NVR) test method from ASTM F331 and ASTM ASTM F303 to establish surface organic residue level. You must use a very clean solvent with an NVR of less than the expected limit value (generally 1.0 µg/L.). Also, you should use a number of parts to establish as much surface area to be tested as possible (up to 1 sq. ft.) per 100ml of test solution.

Daryl L. Roll
Costa Mesa, California, USA




(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:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"