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Your cart is empty.Don't assume that your conductivity meter is working correctly. Probes can get dirty, worn and damaged. Give yourself that feeling of confidence that comes from doing things the right way. We suggest you use 2 calibration standards to cover a range that you normally work within to verify the linearity of the instrument. A different correction factor may be required for high EC values compared to low EC values. If your meter is essentially linear over the entire calibration range you can feel confident in your measurement results. TDS is an old terminology still used today in some water testing applications. It attempts to correlate Total Dissolved Solids (TDS) with conductivity. But because the conductivity depends upon exactly which "solids" are dissolved it can vary widely with different situations. Biopharm conductivity standards are calibrated using NIST traceable potassium chloride conductivity reference standards and are shown as uS/cm at 25 C. We may include a "TDS" cross reference value for those meters that have TDS scales but we want you to understand the limitations of this terminology. Some of our standards cross-reference TDS values for ppm NaCl and also TDS from the "442" natural water curve which are more likely to fit readings used in water testing, hydroponic and aquaculture applications. We suggest you use EC (electrical conductivity) whose readings are usually microSiemens per centimeter or microMho per centimeter (uS/cm or uMho/cm).
Jacqueline
Reviewed in the United States on December 14, 2021
Producto excelente calidad se corresponde con la descripción
CaliCa
Reviewed in the United States on November 25, 2021
For a million dollars. Does what it’s supposed to do, just have to sell my house to calibrate my meter.
Manuel Rosado
Reviewed in the United States on September 5, 2020
Todo fue bueno
Hackwith
Reviewed in the United States on September 29, 2020
The cheap cap broke when I dropped the bottle about a foot onto a countertop. I had to purchase a plastic container to salvage the product period but otherwise it works fine or I would have given it five stars because it is what I expected and the value was okay for the price and to save me from going to a store.
Proteusbw
Reviewed in the United States on March 13, 2019
Did not like buying an item that one of the bottles only had 6 months left from expiration, Stable or not, selling an item halfway through its shelf life is not cool, yet Biopharm felt it was okay, even after I talked with them.
frankvill
Reviewed in the United States on April 27, 2018
It is useful for quickly calibrations. I used it to be sure if my new HANNA conductivity meter was well calibrated. It was very important to take the decision for to chance the membranes in a reverse osmosis in a water treatment plant. Excellent product. Good and cheap.
Patrick
Reviewed in the United States on August 10, 2017
Arrived promptly and works exactly as expected.
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