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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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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. 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 A. Brown
Sanmina-sci, USA - Athens, Pennsylvania, USA
2005

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