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			Nanogram (ng) – One billionth of a gram (10-9).   Nanometer (nm) – One billionth of a meter (10-9).   National Formulary (NF) – A supplement to the United States Pharmacopoeia.   Normal Boiling Point (nbp) – The temperature at which the vapor pressure of a liquid reaches 760 mm of mercury.   Normal Evaporation Rate (NER) – The degree of product loss from a cryogenic liquid container due to heat leak into the container as designed. The NER is checked by measuring the amount of product loss over a specified time and serves to confirm whether the insulation is still good or not.   Normal Temperature and Pressure (NTP) – A gas industry reference base. Normal temperature is 70 degrees F. Normal pressure is one atmosphere or 14,696 psia. Non-Ferrous Alloys - Alloys with little or no iron, such as copper, brass, bronze, nickel, Monel, magnesium or aluminum. Nonferrous - Refers to a metal that contains no iron, such as aluminum, copper, bronze, brass, tin, lead, gold, silver, etc. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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