Formulated to provide precise pH determinations, these buffer solutions which are standardized against N.I.S.T.-certified reference samples, are ideal for calibrating electrodes and pH meters. The buffers are color-coded to avoid error and accurate to within ±0.01 pH at 25°C (77°F). Each buffer contains a preservative/mold inhibitor and a shrink-sealed cap to prevent contamination and leakage. Temperature compensation charts are included with each buffer solution. The shelf life of the buffer solutions are 1 Year.
Rated 4 out of
5 by
christy from
pH buffersI bought pH buffers in 1 gallon jugs. Good value. Will buy again.
Date published: 2016-06-30
Rated 5 out of
5 by
Fehr Graham from
Great productThis pH standard is perfect and is available at an affordable cost
Date published: 2023-04-19
Rated 5 out of
5 by
Fehr Graham from
Quality and Value rolled into one.quality standard at a good value. We have used this standard for years.
Date published: 2023-04-19
Rated 4 out of
5 by
Jordan from
Great Product DOESN'T COME IN BOTTLESPh solution worked as advertised but was disappointed that the solution came in UN-resealable bags. I was under the impression they were in bottles.
Date published: 2020-06-13
Rated 5 out of
5 by
Sara from
PH Buffer SolutionGood Customer service, On time Delivery, Over all no complaints, Good Business! Thank You!
Date published: 2020-04-20
Rated 4 out of
5 by
nkrasco from
Great SamplesWe bought these pH buffers solutions for our internal R&D use. So far, they are exactly what we needed. Working very well!
Date published: 2019-04-16
Rated 5 out of
5 by
DirtCamp Brewering from
Great ServiceEasy online ordering. Prompt service and reasonable price.
Date published: 2018-05-29
Rated 5 out of
5 by
SheliaA from
Great Calibrated pH BuffersWe are always pleased with the calibrated pH buffers.
Thank you for your inquiry. Standard buffer solutions are comprised of salts and can be drained into a sink and flushed with copious amount water afterwards.
Answered by: Application Engineer JC
Date published: 2023-05-05
if i'm need the NIST traceable certificate, where i can download this documents?
Asked by: rachel82
Thank you for your inquiry. If you had purchased the buffer solution with a NIST certificate, please email sales@omega.com and a Customer Care representative will able to email a copy of the cert.
Answered by: JC ENGR
Date published: 2020-09-09
If buffers are susceptible to contamination, how long are they good for after opening the container?
Asked by: Brent O
pH buffer solutions have 1 year shelf life. You should follow the expiration date on the bottle.
Answered by: SAE HPO
Date published: 2020-04-13
Does the Standard Certificate Type provide a NIST traceable certificate or do I have to select the CAL Certification?