Quality Control of Sodium Hypochlorite (NaOCl) Solutions by Density Measurement
A density-based concentration check of sodium hypochlorite - disinfectant for drinking water and swimming pools and used for sanitation of rooms and objects - avoids ineffective disinfection and litigations with suppliers.
UK homes more suitable for heat pumps than expected
Hello Gordoun, you can use a simple empirical formula to estimate COP (my own analysis, unpublished, based on the Building Research Establishment...