People helping each other -- No AI, no cost, no reg'n, no damn popups
(As an Amazon Associate & eBay Partner we earn from qualifying purchases)

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

Thread 444/02

Testing product cleanliness after plating

What machine can we use to check Br, NaCl, SO4 & NO3 on plated parts? We use MSA based chemicals for lead-free & Sn/Pb plating.

How can we assure the cleanliness of plated parts?

Alfred Yu
Semiconductor - Indonesia
2007
publicly reply to Alfred Yu

2007

A simple way of monitoring total ionic contaminants is to immerse the parts in high purity water and measure the change in conductivity.
To be specific about the concentration of the ions you mention, you may be able to buy test kits (sold for water testing)from your lab supplier but I believe that you are dealing with low ppm and they may not have sufficient sensitivity.

Geoff Smith
Hampshire, England
publicly reply to Geoff Smith

2007

Alfred -

I would dunk your parts in high purity deionized water and then test this water using ion chromatography.

Terry

Terry Tomt
- Auburn, Washington
publicly reply to Terry Tomt

(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: