Milwaukee M10038B 6.44 ppt TDS Calibration Solution Sachets (3 x 20mL)

Milwaukee M10038B – 6.44 ppt TDS Calibration Solution (3 x 20mL Sachets)Keep your TDS meter or conductivity tester reading accurately with the Milwaukee M10038B — a lab-grade 6.44 ppt TDS calibration standard prepared against a NIST-traceable potassium chloride (KCl) solution in deionized water. Formulated to ISO 3696 / BS3978 standards, this solution ensures your instrument delivers reliable, repeatable results every time.Each single-use 20mL sachet is sealed against light and air, eliminating contamination risk and making on-the-spot field calibration fast and clean. A printed temperature compensation chart on every sachet shows actual ppm values across a range of temperatures — critical for accurate TDS measurement in variable conditions.Key Features NIST-traceable standard — factory calibrated against NIST 2202 SRM potassium chloride in deionized water ISO 3696 / BS3978 compliant — analytical-grade accuracy for lab and field use Tamper-proof, air-tight sachets — sealed against light and air for maximum shelf stability Temperature compensation chart — actual ppm values at multiple temperatures printed on each sachet Single-use convenience — open, insert probe, calibrate; no cross-contamination risk Lot number & expiration date — full traceability on every sachet Specifications TDS Value: 6.44 ppt (6,440 ppm) Volume: 20mL per sachet Quantity: 3 sachets per pack Reference Standard: NIST 2202 SRM KCl in deionized water Compliance: ISO 3696 / BS3978 Country of Origin: Romania Compatible InstrumentsCheck your meter or tester manual to confirm the correct calibration standard. This solution is designed for use with Milwaukee TDS meters and testers requiring a 6.44 ppt standard, including models compatible with M10038 and cross-compatible with Hanna HI70038.Why Calibrate Regularly?Conductivity and TDS probe performance degrades over time due to residue buildup and electrode aging. Regular calibration with a certified reference solution is essential for water quality testing, hydroponics, aquaculture, laboratory analysis, and food & beverage QC applications.