Standard pH6.86 Powder

Precision Neutral pH Calibration Standard: Formulated to yield a precise reference standard of pH 6.86 (at 25°C) for accurate zero/neutral point pH electrode calibration.

Pre-Measured Powder Sachet: Packaged in a sealed, moisture-proof foil packet to prevent environmental contamination and eliminate manual weighing errors.

Standard 250mL Solution Preparation: Formulated to dissolve easily into 250mL of distilled or deionized water to create a stable reference buffer.

Temperature Compensation Reference: Features a predictable pH thermal response curve to allow accurate calibration across varying liquid testing temperatures.

NIST-Traceable Chemical Purity: Manufactured to strict chemical buffer standards to ensure consistent, highly reproducible laboratory and field calibration.

Chemical Composition: High-purity mixed phosphate buffer powder (potassium dihydrogen phosphate and disodium hydrogen phosphate) sealed in a foil sachet.

Technical Specifications:

Target Buffer Value: pH 6.86 ±0.01 @ 25°C.

Solution Yield: 250 mL per sachet.

Form Factor: Fine white powder in sealed foil sachet.

Usage Advice: Dissolve the entire packet contents into a clean 250mL volumetric flask filled with distilled water, stir until completely dissolved, and submerge your pH probe tip into the solution.

Maintenance: Store sealed sachets in a cool, dry place away from direct sunlight; store prepared liquid buffer in a tightly sealed glass or plastic container to prevent evaporation and dust contamination.

Essential Neutral Calibration Anchor: Position as the vital mid-point standard required for calibrating electronic pH pens, laboratory glass electrodes, and industrial pH controllers.

Highlight 3-Point Calibration Compatibility: Emphasize how pairing pH 6.86 with pH 4.01 and pH 9.18 standard buffers guarantees complete linear span accuracy across acid, neutral, and base spectrums.

Recommended Cross-Sell Add-ons: Pair with Standard pH4.01 Powder, Standard pH9.18 Powder, Standard pH4.01 + pH6.86 + PH9.18 Calibration Powder, and 0-14pH Electrode Probe Sensor BNC Connector.

Featured Collection Star: Display prominently on your Water Quality Sensors collection page as an indispensable universal pH calibration standard.