HI7032M is a premium quality 1,382 mg/L (ppm) TDS calibration solution that is prepared against a NIST traceable potassium chloride solution. Hanna TDS solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna’s line of TDS standards have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.
HI70701M is a 1 g/L standard solution of fluoride used to calibrate the fluoride solid state ion selective electrode (ISE). Hanna ISE standard solutions are manufactured with high purity chemicals and bottled in our own state-of-the-art facility.
ISEs require calibration for accurate readings when performing measurement techniques such as direct measurement and incremental methods. Calibration of up to two points is recommended for enhanced accuracy. Volumetric glassware can be used to make dilutions of standard solutions to bracket the expected concentration of the sample to be measured. ISE calibration standards and sample solutions should always have the same ionic strength; the exact volume of ionic strength adjuster (ISA) must be added to all standards and samples prior to measurement.
Air tight bottle with tamper-proof seal
Ensures quality and freshness of solution.
Each bottle marked with lot number and expiration date
| g/L @ 25°C | 1 g/L fluoride |
|---|---|
| Package | bottles |
| Size | 230 mL |
| Quantity | 1 |
| Certificate of Analysis | On request |
