This really depends on what you are measuring but the the most common use I've seen is in Norwegian recipes.
If this is the case then "ss" stands for "spiseskje"...which is a tablespoon, I think you can work out the rest. ;)
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In apothecary measures, i.e. gr ss, ss stands for 1/2
Ampere is the unit used to measure the current.
As far as I am aware, CO is not a unit of measure.
The SI-unit for force is the newton (N): 1 N ≡ 1 kg·m/s²= 105 dyn ≈ 0.10197 kp ≈ 0.22481 lbf ≈ 7.2330 pdl.
DM = decimeter (1/10 of a meter)
The unit of frequency is "Hertz", abbreviated "Hz". Also called "cycles". Also called "per second".
The meter, the SI unit for distance.
That is not a unit of measure but a type of design .
SI unit kilogram is used to measure mass. It is abbreviated as kg.
SI unit kilogram is used to measure mass. It is abbreviated as kg.
SI unit kilogram is used to measure mass. It is abbreviated as kg.
The correct spelling of the abbreviated oz. as a unit of measure is ounces or ounce.
Ampere is the unit used to measure the current.
1 Pascal (plural Pascals) is a unit used to measure pressure. Abbreviated Pa.
The unit of frequency is "Hertz", abbreviated "Hz". Also called "cycles". Also called "per second".
A 'dL' is deciliters abbreviated. A deciliter is a measure of volume equal to about 3.4 US fluid ounces.
Celsius, abbreviated to C. 0 = Water freezes, 100 = Water boils.
The logarithmic unit of measurement "decibel"" is abbreviated as "dB"