Standards New Zealand

Methods for sampling and analysis of ambient air Method 11.1: Determination of methane and non-methane organic compounds in ambient air-Direct-reading instrumental method - Incorporating Amendment No. 1: March 2016
 N AS/NZS 3580.11.1

Annotation

This Standard sets out a method for determining methane and non-methane organic compounds in ambient air using a direct-reading instrument. The method applies to the determination of hydrocarbons in ambient air within the concentration range 0 to 20 p.p.m.C. by volume.

The methane and non-methane organic compound content of the air is most commonly measured using an automatic or intermittent sampling direct-reading instrument containing a flame ionization detector (FID) and the results obtained are reported as a methane equivalent response. The analysis is sensitive to all hydrocarbons, but will also respond to almost all organic compounds and will yield responses more or less depending on the number of carbon to hydrogen bonds in the compound. Empirical data generally show that the relative sensitivity to various hydrocarbons is approximately equal on a carbon mass basis. Unsaturated, oxygenated and halogenated compounds give a lower response.

Автоматический перевод:

Методы для отбора и анализа Метода атмосферного воздуха 11.1: Определение органических соединений метана и неметана в прямом чтении атмосферного воздуха инструментальный метод - Соединяющаяся Поправка № 1: март 2016

Это Стандартные наборы метод для определения метана и органических соединений неметана в атмосферном воздухе с помощью читающего прямым образом инструмента. Метод относится к определению углеводородов в атмосферном воздухе в диапазоне концентрации от 0 до 20 p.p.m. C. по объему.