Civil engineering indoor environmental pollution detection and analysis system, according to the national standard GB50325-2001 "Civil engineering indoor environmental pollution control", commissioned by the State Construction Engineering Quality Supervision and inspection center, in the new design GC112A Based on the universal gas chromatograph, the successful development of the two special gas chromatograph, harmful substances used in residential indoor atmosphere (benzene and TVOC ) determination; Determination of benzene and water solvent paint, solvent adhesive; water-based paint, water-based adhesive TVOC The determination of polyurethane curing agent two; toluene isocyanate (TDI) The determination of.
The system adopts two methods and analysis GC112A The gas chromatograph configuration FID Detector, HD-III Type thermal desorption instrument, one of the installation of special packing column for the analysis of benzene; another installation of special capillary column for analysis TVOC Re equipped; TCD The thermal conductivity detector, can be used for the determination of moisture content. The instrument is the recommended products of national construction engineering quality supervision and inspection center, the national indoor air of harmful substances testing center.
The company provides complete analysis, personnel training, technical guidance, on-site installation and commissioning, customer service service spare parts such as chromatography, exempt from the menace from the rear is your ideal choice.
The main characteristics:
The implementation of standards: GB50325-2001 "Civil engineering indoor environmental pollution control", at the same time to meet JB/T6244-1992 "Laboratory gas chromatograph", JJG700-1990 "Gas chromatography".
The utility model patent products HD-III Type of thermal desorption, desorption rate (high desorption rate. 90% ), good repeatability, high precision and convenient operation; (c + 0.1 A wide range of temperature (room temperature), on 7 to 400 DEG C ), adsorption tube heating and cooling speed; built-in precision calibration type steady flow valve, direct flow (no soap membrane flowmeter flow measurement).
The special capillary column and filling column efficiency is high, and each column after strict evaluation and aging, the factory has been installed in the chromatograph, according to the state GB50325-2001 The standard for debugging, and provides the corresponding chromatographic analysis conditions.
- provide homemade special activated carbon tube and through strict processing Tenax-TA Adsorption tube, special air injection, headspace bottle and suitable for analysis of coating glass lining pipe connecting pipe, and a full set of accessories and chromatographic conditions.
The microcomputer control of gas chromatograph, the keyboard can be used to set all kinds of temperature control and the use of parameters, including FID Amplifier sensitivity, TCD Bridge flow detector operating parameters. The instrument is stable and reliable, the detector of high sensitivity, low noise, stable time is short. A pillar box automatic cooling function after open the door.
It provides a method for detecting a full set of indoor environmental pollution, provide analysis of the establishment of a full set of equipment required for the user laboratory.
The main technical indicators :
The temperature control:
Temperature control area: chromatographic column box, injector, FID Detector, TCD Detector, HD-III Type of thermal desorption instrument
Temperature range: room temperature 7 to 400 DEG C (incremental 1 c )
The temperature control accuracy is better than that: + 0.1 C (200 c When test)
Cheng Sheng rate: 0 to 40 DEG C /min (incremental 0.1 C /min )
Constant temperature time: 0 ~ 399min (incremental 1min )
- flame ionization detector:
The limit of detection: DFID = 5 * 10-11g/s (GC112A )
Baseline drift That is less than 6 * 10 - Thirteen A/h
The thermal conductivity detector:
Sensitivity: S = 2500mV.ml/mg (carrier gas: H2 (GC112A) )
Baseline noise V: = 20
Baseline drift V/h: = 30