Hanna Instruments HI-700384P Pool Line 6.44ppt TDS Standard, 25 x 20 mL sachets
For maximum accuracy, our Total Dissolved Solids (TDS) Calibration Solutions are specifically produced for Conductivity meters and electrodes in the Pool Line range.
Hanna conductivity electrodes can be calibrated in just a few minutes, wherever you are working, thanks to the handy Sachets new to the Pool Line range.
Each label shows the product batch number, expiry date, and a conductivity/temperature correlation table. TDS value is calculated at 25°C.
HI-700384P Pool Line TDS Calibration Solutions 6.44 g/L (ppt) 25 x 20ml sachets
Total Dissolved Solids (TDS) meters are vital to the water industry so accurate readings are essential. Make sure your electrode is giving accurate readings by using Hanna new Pool Line TDS Calibration Solution available in sachets. TDS Solutions are produced with high quality Potassium Chloride in various concentrations to NIST standards.
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.