pH Buffer Calibration Powder Set (4.01 & 6.86 pH)

Keep your digital pH meters accurate and reliable with our pH Buffer Calibration Powder Set, supplied through Apex Labs. Precision is the backbone of any liquid analysis, and these pre-measured powder packets provide a cost-effective, long-shelf-life solution for calibrating your equipment. Designed for ease of use, each packet creates $250\text{ mL}$ of fresh, high-accuracy buffer solution when mixed with distilled water, ensuring optimal performance for laboratory instruments, field testing, and industrial sensors.

Product Specification & Direct Ordering

Technical Specifications

• pH Values & Compounds: 4.01 (Potassium Hydrogen Phthalate) & 6.86 (Mixed Phosphate)
• Calibration Accuracy: pm 0.01 pH at 25C
• Volume per Pack: Makes 250 mL of solution per sachet
• Solubility: Instantly soluble in distilled or deionized water
• Packaging Type: Moisture-proof sealed foil sachets
• Storage Requirements: Store in a cool, dry place
• Supplier & Distributor: Apex Labs, Varanasi, Uttar Pradesh

Preparation Instructions

1. Empty the contents of one sachet into a clean 250mL beaker.
2. Add 250 mL of deionized or distilled water at 25C.
3. Stir gently until the powder is completely dissolved.
4. Your calibration solution is now ready for use.

Laboratory Instruments & Consumables Range

Technical Material & Performance Highlights

• Dual Calibration Points: Includes both 4.01 pH (Acidic) and 6.86 pH (Neutral) powders for a comprehensive two-point calibration.
• Pre-Measured Accuracy: Each sachet is expertly measured to ensure exact pH levels, eliminating the guesswork associated with liquid concentrates.
• Extended Shelf Life: Unlike liquid buffer solutions that can expire or contaminate quickly, these dry powder packs remain stable for years until opened.
• Portable & Convenient: Lightweight and compact, making them ideal for field testing, hydroponics, aquariums, and educational labs.
• Universal Compatibility: Works with all digital pH testers, including handheld pens, benchtop meters, and industrial sensors.