Thermo Scientific™ Orion™ pH Buffer Bottles (475ml)
Product details
Perform accurate, reproducible pH calibrations with these color-coded buffer bottles.
Use Thermo Scientific™ Orion™ pH buffer bottles to perform accurate, reproducible pH calibrations on your pH meter and pH electrode measurement system. Orion pH buffers are available in 475mL bottles for everyday use and laboratory and bench pH analysis and available in 60 mL bottle 5 packs for occasional use and portable and field pH analysis. Using high-quality pH buffers to calibrate your pH system is the best way to ensure your pH measurements are correct and repeatable.
All Orion pH Buffer Bottles have pH/temperature tables printed on the labels for accurate calibrations and NIST traceability. Manufactured under ISO 9000 quality standards.
Buffer Color Codes:
- pH 4.01 buffer is pink
- pH 5.00 buffer is orange
- pH 7.00 buffer is yellow
- pH 10.01 buffer is blue
The buffers are available in pint (475mL) bottles, portable five packs of 2 oz. (5 x 60mL) bottles, convenient All-in-One buffer kits, 5 gallon (19L) Cubitainers™ and single-use pouches.
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.