Sample before decompression
The high-pressure sampling head can be sterilized by high temperature, high pressure and humid heat (at 121°C for 20 minutes) or dry heat sterilization (at 180°C for 60 minutes).

Sample before decompression
Because the density of each gas is different, in order to accurately calculate the gas volume, we use a mass flow meter, so you need to select the gas type before sampling.

Sample before decompression
The HPD series can sample compressed air, nitrogen, carbon dioxide, argon, oxygen and other inert gases, but calibration is required before sampling.

Sample before decompression
Sampling of planktonic bacteria in compressed gas, with a pressure-resistant sampling head, sampling is performed before the gas is decompressed to prevent microorganisms from being damaged due to a sudden pressure drop. If the compressed air planktonic bacteria are used for sampling equipment after decompression, are the microorganisms damaged? Need to have verification data.

Sample after decompression
Except for METONE, most particle counters can be adapted, such as TSI, PMS, lighthouse, Su Jing, etc. can be adapted. Different from mechanical high-pressure diffusers, HPD series products are suitable for all particle counters on the market with a flow rate ≥ 2L/min. There is no need to select a diffuser corresponding to the flow rate based on the flow rate of the particle counter.

Sample after decompression
Meet the requirements of ISO8573.
1. ISO8573 mentions full flow sampling and partial flow sampling. Most high-pressure diffusers on the market are mechanical high-pressure diffusers, which belong to partial flow sampling, and some flow sampling requires isokinetic sampling. After we decompress, the sampling belongs to full flow. Sampling, so there is no need to consider whether it is isokinetic sampling.
2. It is mentioned in ISO8573 that the sampling pipe is made of stainless steel, and the pipe through which we compressed air flows is made of 316L stainless steel.