Normalizovaný moštoměr is a scale used in the Czech Republic

Czech Republic

The Czech Republic is a landlocked country in Central Europe. The country is bordered by Poland to the northeast, Slovakia to the east, Austria to the south, and Germany to the west and northwest....

 and Slovakia

Slovakia

The Slovak Republic is a landlocked state in Central Europe. It has a population of over five million and an area of about . Slovakia is bordered by the Czech Republic and Austria to the west, Poland to the north, Ukraine to the east and Hungary to the south...

 for measuring the sweetness of wine

Sweetness of wine

The subjective sweetness of a wine is determined by the interaction of several factors, including the amount of sugar in the wine to be sure, but also the relative levels of alcohol, acids, and tannins. Briefly: sugars and alcohol enhance a wine's sweetness; acids and bitter tannins counteract it...

 must

Must

Must is freshly pressed fruit juice that contains the skins, seeds, and stems of the fruit. The solid portion of the must is called pomace; it typically makes up 7%–23% of the total weight of the must. Making must is the first step in winemaking...

. 1 °NM indicates 1 kg of sugar in 100 litres of must.
Czech wine

Czech wine

Wine in the Czech Republic is produced mainly in southern Moravia, although a few vineyards are located in Bohemia. However, Moravia accounts for around 96% of the country's vineyards, which is why Czech wine is more often referred to as Moravian wine ...

 and Slovak wine

Slovak wine

Slovak wine is produced in the southern part of Slovakia, which is divided into 6 wine-producing areas.Although Slovak wines except Tokaj are not well known internationally, they are popular domestically and in neighbouring countries.-Regions:...

 are classified by the level of sweetness of the must and other conditions such as the region where the grapes are grown. The scale is used for the determination of Quality Wine with Special Attributes. At the time of harvest, the sweetness of the grape must is measured and certified by the government controlling and testing institute. In the Czech Republic, this institute is the Czech State Agricultural & Food Inspectorate (SZPI).
Conversions to Other Scales:

• °Oe = 3.845 x °NM + 10,8
• °KMW = 0,732 x °NM +3,2