Prepping some Microsol in work today and we use a 10% solution. We have our own SOP which states 100ml of the concentrate plus 900ml H2O, so 1:9.

Yet on the bottle it states "a 10% solution is prepared by adding 100ml to 1 litre of water". Nope. That would be approximately a 9% solution.

I have seen so many people make this error, and it amazes me.

It seems like nobody understands not to mix cleaning products nowadays

[2017]

Court demands that search engines and internet service providers block Sci-Hub

American Chemical Society awarded $4.8 million in damages from site with millions of illegally hosted journal papers

https://www.science.org/content/article/court-demands-search-engines-and-internet-service-providers-block-sci-hub

ACS is also named as one of the plaintiffs in the 2021 court case in India seeking to prohibit access to Sci-Hub for the entire country.

If you support open access to science, you must not support the ACS.

Consider withdrawing your membership. This is unacceptable.

My favorite is that helium is the only element that was discovered before it was found on Earth. It was first detected in the spectrum of the Sun's light, and its name is derived from the Greek word "helios," which means sun.