Syringe injection, test atmospheres

Generation of test atmospheres of organic vapours by the syringe injection technique Generation of test atmospheres of organic vapours by the permeation tube method On-site validation of sampling methods... 

MDHS 3 Generation of test atmospheres of organic vapours by the syringe injection technique... 

The furnace was preheated and the atmosphere conditioned by passing Ar (up to 300 mL/h) humidified with superheated steam for one hour prior to starting the test. The Ar was humidified by injecting water from a syringe pump into the Ar line, which was heated with an internal Kal-rod heater and is referred to as the superheated steam line (SHS). The temperature of the humidified Ar at the exit of the SHS was monitored with a thermocouple and was varied via a variac. 

---