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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
we've never had one fail in tens of thousands of lights over the past 13 years
Do not apply during the hot part of the day
Protects against plant stress
Measurable
Hanna Instruments pH 4.01 Calibration Solution, 500 mL Lumen & Light Meters we've never had one failThis buffer value is widely used in water purification plants, in the food industry, and wherever the pH is expected to be slightly acidic Hanna Instruments ph 4 Buffer Specs: Traceable to NIST standards Available in bottles or sealed sachets, complete with or without a certificate of analysis Multiple resolutions for better accuracy NIST Traceability Standardized using a pH meter calibrated by means of two standard solutions prepared from NIST
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