Environmental air 16.7L/50L sampling flow fluoride sampler

Description :

1、 JH-120K typeenvironmentairfluoridesamplercomply withstandard

　　JJG 943-2011 "Total Suspended Particulate Matter Sampler" HJ/T194-2005 "Technical Specification for Manual Monitoring of Environmental Air Quality" HJ93-2013 "Technical Requirements and Testing Methods for Environmental Air Particulate Matter (PM10 and PM2.5) Samplers" HJ955-2018 "Determination of Fluoride in Environmental Air - Membrane Sampling/Fluoride Ion Selective Electrode Method" HJ 194-2017 "Technical Specification for Manual Monitoring of Environmental Air Quality" HJ 618-2011 "Weight Method for Determination of Environmental Air PM10 and PM2.5"

2、 JH-120K typeenvironmentairfluoridesamplerScope of Application

　　Collecting ambient air fluoride can also be extended to measure TSP, PM10, and PM2.5. Suitable for the determination of gaseous and particulate fluorides in ambient air,. The acetic acid nitric acid fiber microporous membrane (pore size 5 μ m, diameter 90mm) impregnated with dipotassium dihydrogen phosphate was used. When the sampling flow rate was 50L/min and the sampling time was 1h, the detection limit of the method was 0.5 μ g/m3, and the lower limit of determination was 2.0 μ g/m3; When the sampling flow rate is 16.7L/min and the sampling time is 24h, the detection limit of the method is 0.06 μ g/m3, and the lower limit of determination is 0.24 μ g/m3.

3、 JH-120K typeenvironmentairfluoridesamplerPerformance Characteristics

　　1. Adopting a wide temperature LCD display screen, Chinese menu display, illustrated text, convenient operation.

　　2. Adopting a volumetric imported brushless blade pump with a flow range of (10-100) L/min. At a flow rate of 50L/min, the load capacity is greater than 30kPa, with a daily sampling rate of 16.67L/min; Sampling at an average of 50L/min with two functions. 3. The sampling head can hold a 90mm filter membrane (effective diameter 80mm), equipped with two layers of stainless steel support filter membrane mesh pads, with a 2mm to 3mm interval between the two layers of mesh pads. 4. Using electronic flow meters and flow compensation systems, automatic measurement of temperature, atmospheric pressure, pre gauge temperature, pre gauge pressure and other parameters, and automatic calculation of cumulative volume. 5. When conducting hourly mean measurement, collect at a flow rate of 50L/min, with a load capacity greater than 30kPa (greater than the standard requirement to overcome a pressure load of 20kPa), and sample for at least 45 minutes; When measuring the 24-hour mean, collect at a flow rate of 16.7L/min for at least 20 hours. 6. It has the functions of air path blockage and low flow protection. If the set flow rate is not reached within a certain period of time during sampling, the instrument will enter automatic protection mode. 7. The various parameters of the instrument can be calibrated online directly through the keyboard. Password must be entered for instrument maintenance and calibration, and it has permission management function to ensure the safety of all parameters of the instrument. 8. Adopting waterproof structure design, it can prevent rain and snow invasion during field work. 9. Equipped with a real-time clock, the sampling data is automatically memorized and prioritized for use the next time it is turned on, achieving one click sampling. 10. Automatically store monitoring data, can be copied and printed with an external printer or USB flash drive. 11. The sampling head is made of aluminum alloy material and has undergone oxidation treatment to resist electrostatic adsorption. 12. The factory standard fluoride dual membrane sampling head can sample gaseous and particulate fluorides in the ambient air.

4、 JH-120K typeenvironmentairfluoridesamplerTechnical Specifications

5JH-120K typeenvironmentAir fluoride samplerMain configuration list: Host 1 fluoride dual membrane sampling head 1 set of acetic acid nitrate fiber microporous filter membrane 1 box (50 sheets/box) aluminum alloy box 1 tripod 1 pair

AfterSalesService :

• Fluoride sampler