This is a very comprehensive article about the persistence of the Corona virus on various surfaces and the efficacy of different disinfectants at various concentrations
https://www.journalofhospitalinfection.com/article/S0195-6701(20)30046-3/fulltext
https://www.journalofhospitalinfection.com/article/S0195-6701(20)30046-3/fulltext
Bamboo hydrosol is restocked. Exp date: 05/2022
https://shop.skinchakra.eu/en/Cosmetic-Lab/Organic-hydrosols-and-essential-oils/Organic-Bamboo-hydrosol.html
https://shop.skinchakra.eu/en/Cosmetic-Lab/Organic-hydrosols-and-essential-oils/Organic-Bamboo-hydrosol.html
this is miles beyond the budget of most of us but still it is useful to know how they measure the foam in an advanced laboratory:
https://www.youtube.com/watch?v=UryTtDYqvz8
https://www.youtube.com/watch?v=UryTtDYqvz8
YouTube
Automatic Ross-Miles foam analysis | RMFA
The Ross Miles Foam Analyzer – RMFA is the world‘s first instrument for automatic measurements of foamability and foam stability in accordance with ASTM D 1173.
The RMFA uses standardized vessels in a newly-developed measuring setup for electronic, optical…
The RMFA uses standardized vessels in a newly-developed measuring setup for electronic, optical…