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The Atlas Scientific pH 4.00 Calibration Solution – 125ml (4oz) is meticulously crafted through a four-stage process to ensure exceptional accuracy. This solution is standardized against NIST-certified references, making it suitable for use with any pH probe. It maintains a precision of 0.02 pH at 25C, ensuring reliable calibration results. With a shelf life of two years at room temperature, it offers long-term usability for precise pH measurements.
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