How to check mono ethylene glycol based brine specific gravity (density) Specific gravity hydrometer

About hydrometer.
About Glycol specific gravity.
About water specific gravity.
About brine specific gravity.

[@VikramYadav-fw5iq]

Why we use MEG some places not methanol or cacl2 . On which bases we select these secondary refregerant ?

[@umeshgarudkar738]

Because of fire hazardous and safety purpose use MEG as a Brine.

[@gufrankhanmulla5747]

Can you give me the mobile no. I need some help about this