RE: 99.9%24 Feb 2026 20:16
Sorry to be picky accipiter but 99.9% is not what Hex are producing. Bo stated 99.999% which is very different. See below for the various tiers and grades.
Helium is classified into several purity tiers (grades) based on its percentage purity, commonly denoted by a "N" grade system where the number indicates how many nines are in the purity percentage.
Zephyr Solutions
Zephyr Solutions
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Grade 6.0 (99.9999%): The highest purity commonly available, often used in semiconductor manufacturing, advanced research, and as a cooling agent for superconducting magnets in MRI machines.
Grade 5.5 (99.9995%): Ultra-pure, also referred to as "research grade," used in chromatography and fiber optic cooling.
Grade 5.0 (99.999%): High purity, used for gas chromatography, mass spectrometry, weather balloons, and specialized laboratory research.
Zero Grade (99.997%): Contains minimal contaminants (often less than 0.5 ppm hydrocarbons), suitable for calibrating measurement devices and instrument operation.
Grade 4.7/4.8 (99.997%–99.998%): Often considered high-end industrial grade, used in leak detection, pressure testing, and breathing mixtures for diving.
Grade 4.0/4.6 (99.99%–99.996%): Known as "balloon grade" or "industrial grade," used for party balloons, blimps, and general industrial applications.