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 4.00, 7.00 & 10.00 Calibration Buffer 3-Pack, 500 mL Each | NIST Traceable. COAs available. Values at 25C. 1.06 Pint Each. Reference Standard Solutions Compatible with All pH Meters

Product ID: 31398438

Details

Boiling point
100 °C
Brand
Biopharm
GHS health hazard
Non hazardous
Item Volume
1500 ml
Percentage assay
100

🎨Color-coded for quick ID

📏NIST-traceable precision

🔗QR code COA access

11092 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Boiling point
100 °C
Brand
Biopharm
GHS health hazard
Non hazardous

Description

🧪 Calibrate like a pro — precision you can trust, clarity you can see!

LONG SHELF LIFE - Over 1 year guaranteed freshness with clear lot and expiration tracking
LAB GRADE ACCURACY - NIST SRM calibrated for unmatched precision in every drop
INSTANT VERIFICATION - Scan QR codes on labels to instantly download Certificates of Analysis
VERSATILE COMPATIBILITY - Ideal for pharmaceutical, academic, research, and industrial labs
EFFORTLESS IDENTIFICATION - Color-coded bottles eliminate guesswork during calibration

Biopharm's pH 4.00, 7.00 & 10.00 Calibration Buffer 3-Pack offers NIST-traceable, lab-verified accuracy in convenient 500 mL poly bottles. Each solution is color-coded and QR-coded for easy identification and instant access to Certificates of Analysis, ensuring reliable calibration for pharmaceutical, academic, research, and industrial pH meters with over one year shelf life.

Specifications

% Assay of Chemical(s)	100
ASIN	B01E7U873K
Best Sellers Rank	#6,425 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Chemical Buffers
Boiling Point	100 °C
Boiling point	100 °C
Brand	Biopharm
Brand Name	Biopharm
Container Type	Bottle
Customer Reviews	4.7 out of 5 stars 496 Reviews
GHS Health Hazard	Non hazardous
GHS Physical Hazard	Non hazardous
GHS health hazard	Non hazardous
Item Form	Solution
Item Volume	1500 ml
Manufacturer	Biopharm Inc
Package Information	Bottle
Part Number	BB8886X
Percentage assay	100
UPC	721272377101
Volume	1500 ml

Reviews

S**E

THUMBS UP!

Good coice for pool meter calibration

15.07.2026

S**R

I use this stuff to calibrate my pH meter.

4.08.2026

I**N

Good stuff!

They came in and are doing great, we are glad that the expiration dates are far out, We don't use a lot of this, so our standards usually expire before the bottles are empty.

1.02.2026

B**A

Gets the job done

I use this solution to calibrate all of my various ph meters & it works as it should. The solutions are the accurate ph. I have not tried to use it to calibrate the one meter I have that requires slightly different ph levels than the ones included.

2.11.2021

M**.

Its Buffer

Buffer but at a real good price.

3.08.2026

C**G

Works great.

20.01.2026

C**Z

Todo según lo pactado

Excelente

5.01.2026

A**R

Very good for calibrating our equipment

These came clearly marked and the different colors add to the security of using the correct product for the calibration.

8.11.2023

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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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How is product pricing calculated?+

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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The product exactly matches the description. Very satisfied with my purchase.

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11092 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

2 days ago

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