Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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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. GayletsMcKinney 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 PANDASISCO(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 A. Brown
Sanmina-sci, USA - Athens, Pennsylvania, USA
2005
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