The clean nitrogen filtered by WALKER nitrogen filter is mostly used as the carrier gas for gas chromatographs. The clean nitrogen complies with ISO 8573-1:2010, with a filtration accuracy of 0.01 μm and an oil content of 0.003 mg/m³.

The gas chromatograph is a precision instrument with high requirements for nitrogen. WALKER nitrogen filter can remove particles, oil, water and dust from nitrogen to purify it, meeting the requirements of gas chromatographs for nitrogen.

WALKER nitrogen filter is produced by WALKER FILTRATION in the UK in accordance with ISO 9001 standards, complies with ISO 12500 standards, and has passed tests in an independent third-party laboratory. Installed in a nitrogen purification system, it can provide users with reliable pure nitrogen and reliable carrier gas support for gas chromatographs.