Introduction: This instrument is a professional instrument for collecting gas samples by vacuum bag method. The passive sampling method is used to collect various gases, especially suitable for the sampling of volatile organic compounds. It can be used for the collection of various samples in environmental protection, health, labor, security, military, scientific research, education and other departments. Executive standard HJ 732-2014 "Air Bag Method for Sampling of Fixed Pollution Source Waste Gas and Volatile Organic Compounds" HJ 38-2017 "Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons in Exhaust Gases from Stationary Pollution Sources-Gas Chromatography" HJ 604-2017 "Determination of Ambient Air Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons Direct Sampling-Gas Chromatography" Features: 1. Small size, light weight, easy to carry, simple operation 2. The vacuum box is used for positive pressure emptying and negative pressure to collect gaseous samples to avoid sample contamination and fast sampling 3. Through the switch valve on the instrument panel, the replacement of residual gas in the gas bag and the whole process of gas sampling can be completed 4. The flow of the sampling pump is adjustable to meet different working conditions 5. The gas circuit uses chemically inert materials to ensure that the collected gaseous samples are free of cross-contamination and adsorption 6. Built-in high-performance lithium battery to achieve AC and DC dual use 7. Heated sampling tube to prevent condensation water from being absorbed. The front end of the sampling tube is equipped with a PTFE filter element to ensure measurement accuracy
Introduction: This instrument is a professional instrument for collecting gas samples by vacuum bag method. The passive sampling method is used to collect various gases, especially suitable for the sampling of volatile organic compounds. It can be used for the collection of various samples in environmental protection, health, labor, security, military, scientific research, education and other departments.
