What is the self life?

pH 4.00 and pH 7.00 receives a 2 year expiration from the date of manufacture. pH 10.00 receives a 1.5 year expiration from the date of manufacture.

Does the certificate have any additional costs?

No. The certification(s) are included with the shipment at no additional cost.

Where can i find the buffer ph vs. temperature table that commonly comes with ph calibration buffers? not just the two values on the front.

It can be found on the this product page under the 'Downloads' option. Here's the link. https://images-na.ssl-images-amazon.com/images/I/81i3MCq4otL.pdf

how much is needed to calibrate a pen? How long does this usually last calibrating 1/week/min?

Depends on the pen size. the myron L pen with cup for the it'll be about 3oz for a triple rinse and calibrate. So 5 weeks since it's about 16.9oz. but other pens require more.

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pH Calibration Buffer 3-Pack, 500 mL (1.06 Pint) Each: pH 4.00, pH 7.00, and pH 10.00; NIST Traceable Reference Standards for All pH Meters

Product ID: 31398438

Details

Brand
Biopharm
Item Form
Liquid
Item Volume
500
Manufacturer
Biopharm Inc
Package Information
Bottle

🎨Color-coded for instant ID

📏NIST-traceable precision

🧪500 mL lab-grade bottles

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Description

🧪 Calibrate with Confidence — Because Precision is Non-Negotiable

LAB GRADE VERSATILITY - Perfectly suited for pharmaceutical, academic, research, and industrial labs demanding top-tier standards.
INSTANT IDENTIFICATION - Vibrant color-coded bottles eliminate guesswork and speed up your workflow.
PRECISION YOU CAN TRUST - NIST-traceable calibration ensures unmatched accuracy for every pH meter.
CERTIFIED QUALITY ASSURANCE - Each lot is uniquely numbered and expiration dated for reliable traceability.
GENEROUS VOLUME READY TO USE - 500 mL bottles provide ample solution for repeated calibrations without frequent reordering.

Biopharm's 3-pack pH calibration buffers (pH 4.00, 7.00, 10.00) deliver NIST-traceable accuracy in convenient 500 mL color-coded bottles. Each lot is uniquely numbered and expiration dated, ensuring reliable, lab-grade calibration solutions ideal for pharmaceutical, academic, research, and industrial applications.

Specifications

ASIN	B01E7U873K
Best Sellers Rank	#12,176 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Chemical Buffers
Brand Name	Biopharm
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (150)
Item Form	Liquid
Manufacturer	Biopharm Inc
Part Number	BB8886X
UPC	721272377101
Volume	500 Milliliters

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