What is the life span of the solution . Does it have an expiration date?

The lifespan of unopened pH buffer solutions (new batches) is two years, one year for the older batches. All of our solutions have expiration dates on the bottles.

Do the buffers and storage solutions have a mold inhibitor?

no, I don't think it's have mold inhibitors

Does this come with storage solution?

Yes a 4oz bottle of kci storage solution. It's in the pic and description.

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🧪 Calibrate like a pro — because precision is your power move.

EXTENDED USABILITY - 1-year shelf life with clear expiration and reference charts to stay ahead.
PRECISION PERFECTED - Calibrate with ±0.01 pH accuracy for lab-grade confidence.
PROBE LONGEVITY BOOST - Includes 3M KCL storage solution to maintain electrode sensitivity and accuracy.
COLOR CODED CONVENIENCE - Double-sealed, color-coded bottles for quick, error-free calibration.
NIST BACKED RELIABILITY - Standardized against NIST Certified references to guarantee trusted results.

This 8oz pH Calibration Buffer Solution Kit offers ultra-precise ±0.01 pH accuracy, standardized against NIST references at 25°C. Featuring color-coded, double-sealed bottles with a 1-year shelf life and an included 4oz 3M KCL storage solution, it ensures your pH/ORP electrodes stay accurate and sensitive. Ideal for professionals demanding reliable, hassle-free calibration.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Manufacturer	Apera Instruments, LLC
Part number	AI1108
Item Weight	255 g
Product Dimensions	5.08 x 5.08 x 20.32 cm; 255.15 g
Item model number	AI1108
Style	pH 4& 7 (8oz.)
Material	HDPE (High Density Polyethylene)
Item Package Quantity	1
Measurement System	US
Batteries included?	No
Batteries Required?	No

8oz. pH Calibration Buffer Solution Kit (pH 4.00 & 7.00), plus 4oz. 3M KCL Storage Solution for pH/ORP Electrodes

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