Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

pub
Free personalized metal finishing help!


DM Water Patch Test



(-----) 2006

I have found that the treated water of DM plant had some muddy colour type dust . Visually this is not seen but under patch test a fine dusting observed.The inlet water is OK but after passing through DM plant such observation is been observed.What this may be ?

For recharging we use HCl & NaOH.

Patch Test is passing 100 ML. water through a filter paper of 1"dia.

Tap water take 1 minute to pass through it but DM water after few minute get clogh.

KIRAN RATHOD
MFG. METAL WORKING LUBRICANT - INDIA
^


2006

Please check under a microscope to see if the "dust" is biological in origin, or small pieces of IX resin.

Lyle Kirman
consultant - Cleveland Heights, Ohio
^


2006

Dear Kiran,

First you please check,it may be fines of resin. next you please check the acid / caustic solution, it should be clear, no residue should be there in it. then check prefilter / sand filters.

Rakesh [last name deleted for privacy by Editor]
- Vadodara, Gujarat, India
^


June 26, 2008

Dear kiran I use in industry testing dm water silver nitrate 30 or 40 % use. In the 10 ml test tube take 5 ml dm water and 2 drops silver nitrate put in a test tube if it poor dm water then we get no changing in dm water and you try these method with simple water then you will get milky color.

Mohd anwar
battery water industry - Jalgaon maharashtra india
^

none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

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    -    ©1995-2022 finishing.com, Pine Beach, New Jersey, USA