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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Biopharm pH Calibration Buffer 3-Pack: pH 4.00, 7.00, and 10.00; 500mL Each

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

🧪500mL lab-grade bottles

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Description

📊 Calibrate with Confidence — Because Precision is Power

INSTANT IDENTIFICATION - Vibrant color-coded bottles eliminate guesswork and speed up your workflow.
PRECISION YOU CAN TRUST - NIST standard reference calibration ensures unmatched accuracy for all your pH meters.
VERSATILE LAB ESSENTIAL - Perfectly suited for pharmaceutical, academic, research, and industrial laboratories demanding reliability.
CERTIFIED QUALITY ASSURANCE - Each lot is uniquely numbered and expiration dated with certificates included for full traceability.
GENEROUS VOLUME FOR EXTENDED USE - 500mL bottles provide ample solution for repeated calibrations without frequent reordering.

Biopharm's pH Calibration Buffer 3-Pack offers three NIST-traceable, color-coded solutions (pH 4.00, 7.00, 10.00) in 500mL bottles, each lot uniquely numbered and expiration dated. Trusted since 1977, these buffers deliver reliable, certified accuracy for all pH meters across pharmaceutical, academic, research, and industrial labs.

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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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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