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Hello

Hello

What is the shelf life of the buffer solution?

2 years, but if you don't pollute it until 4 years old

My solution dates from 2016. I was careful to use it well. How do I know if it still fits?

Good question ! impossible to verify in my opinion! because it is the reference

I will consider changing it. What is the delivery delay ?

4 working days

Thank you

You are welcome, do not hesitate to contact us! Have a good evening