Atlas Scientific pH 4.00, 7.00, 10.00, pH Electrode Storage Calibration Solution 250ml - 8oz (Pack of 4)

Atlas Scientific pH 4.00, 7.00, 10.00, pH Electrode Storage Calibration Solution 250ml - 8oz (Pack of 4)

$ 20.99

Score By Feature

Based on 112 ratings

Accuracy

9.30

Value for money

8.73

OveReview Final Score

How Our Score Is Calculated

Product Description

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1 250ml (8oz) pH 4, 7

±0. pH 02 at 25°C

It works with all pH levels.

References from the National Institute of Standards and Technology (NIST) were used to standardize the data.

At room temperature, the product has a two-year shelf life.

Questions & Answers

Is it possible to use this for trimeter ph, ec, cf, and ppm?

Yes, if the ph calibration fluid is used.

What exactly are the components of the dish? Is it just naoh and hcl that has been diluted? I'd prefer not to have any other chemicals in there. ?

It doesn't say, but that shouldn't be a problem because you're only going to use it to calibrate the instrument. With the exception of the 10, they're all fairly stable. There is no answer. Always keep that one's exposure to air to a bare minimum, or it will begin to deviate from the 10.

Would you recommend these for use with the Hanna hi98129 ph/ec/tds/c/ppm combo tester?

Yes, these do work for that meter, AJ.

Selected User Reviews For Atlas Scientific pH 4.00, 7.00, 10.00, pH Electrode Storage Calibration Solution 250ml - 8oz (Pack of 4)

I'll never use all four of them

3/5

As a result, it was a complete waste of money. Make an effort to locate a single pH bottle.

Janiyah Becker

| Aug 04, 2021

It's dead on

5/5

For calibration, use a pH meter.

Milana Noble

| Jul 10, 2021

Exactly as stated

5/5

a precise answer.

Kimora Proctor

| Mar 07, 2021

Excellent work

5/5

100 satisfecho.

Elle Jarvis

| Jul 17, 2021

good one- purchase a button a quick and easy bundle

5/5

Bruce GOUGH

| Feb 27, 2021

You've been issued a cautionary warning! Although the buffers themselves are adequate, the storage solution began to grow mold in the bottle and on my probe after a few months

3/5

Not good. And, yes, the solution was kept cool and dark. This is completely unacceptable and could jeopardize the investigation. These should last at least a year in the refrigerator. Remove yourself from the situation.

Norah Cruz

| May 22, 2021

Five out of five stars

5/5

A fantastic item.

Ezra Pham

| Sep 24, 2021

Is it True That Freezing Affects the Solutions? The item was frozen when we received it

3/5

We tried calling the manufacturer several times to find out if freezing the solutions harms them. We've left messages with the supplier, but no one has returned our calls to tell us if there's a problem with freezing.