4 ms·
TIL. For non native speakers: "specific gravity" means "density, typically relative to max density liquid water", which does not make sense to me at all.
by myrmidon 4y ago
TIL. For non native speakers: "specific gravity" means "density, typically relative to max density liquid water", which does not make sense to me at all.
- zdragnar 4y agoIt's a simple way to check changes in concentration of a chemical in water when you're not worried about external contaminants (i.e. just water vapor or anticipated chemical reactions). For home brewers, measuring specific gravity at the start and end of your brew process is the simplest way to know how much alcohol is in your creation. For this you'd use a hydrometer: https://en.wikipedia.org/wiki/Hydrometer https://en.wikipedia.org/wiki/Hydrometer
- jaclaz 4y agoIt is a common way to measure battery charge through a hydrometer in automobiles batteries (not the sealed type): https://en.wikipedia.org/wiki/Hydrometer https://en.wikipedia.org/wiki/Hydrometer >Battery hydrometer The state of charge of a lead-acid battery can be estimated from the density of the sulfuric acid solution used as electrolyte. A hydrometer calibrated to read specific gravity relative to water at 60 °F (16 °C) is a standard tool for servicing automobile batteries. See also here: https://deepcyclebatterystore.com/use-battery-hydrometer/ https://deepcyclebatterystore.com/use-battery-hydrometer/