No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Life Span Of PH Papers





Is there an average life span of PH papers? We keep them in a drawer and they are free from any moisture.

Brian c. Gaylets
McKinney Mfg. Assa Abloy America - Scranton, Pennsylvania, U.S.A.
2005


Generally, a long time, years. Specifically, it will depend on the brand, storage and handling conditions. You can easily determine the usability by comparing the readings to a new identical paper. You can not compare between brands or types or ranges.

James Watts
- Navarre, Florida
2005


Storage area for pH Paper is really important for life period, as we know The use of pH paper for checking Acidity/basisity.So storage area should be free from acid or base atomsphere and best way to keep in side descicator to protect from any moisture from outside area.

SURENDRA KUMAR PANDA
SISCO(HADEED) - SAUDI ARABIA
2005



pH paper last a very long time if kept dry and at the right temp., but I swear by my portable ph meter, they are inexpensive and much more acccurate

jason brown
Jason A. Brown
Sanmina-sci, USA - Athens, Pennsylvania, USA
2005




(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"