Knowledge
Technical articles
Practical notes on gas selection, welding, food applications and cylinder safety.
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Welding Gases Choosing a shielding gas for MAG welding: what the CO₂ ratio changes
The CO₂ ratio in an argon–carbon dioxide mixture directly changes penetration, spatter and bead appearance. Here is how DIN EN ISO 14175 classes work and which mixture suits which job. 4 min read -
Food Gases Modified atmosphere packaging (MAP): how gas extends shelf life
What nitrogen, carbon dioxide and oxygen do inside the pack, typical atmospheres by product group, and what “food grade gas” actually means. 3 min read -
Gas Equipment Gas cylinder colour codes and safe handling: an EN 1089-3 guide
What the shoulder colour tells you, which gas carries which colour, and the rules that apply in storage. EN 1089-3 colour coding plus practical safety notes. 3 min read -
Industrial Gases What is argon and where is it used? Purity grades and safety
Argon’s properties, how it is produced, what purity grades from 4.6 to 6.0 mean, applications from welding to electronics, and the risk it carries as an asphyxiant. 3 min read - Welding Gases
Shielding gas for TIG welding: argon, helium and hydrogen mixtures
Why oxidising gases cannot be used in TIG, what helium and hydrogen additions change, and how root shielding works. Gas selection by material. 3 min read -
Industrial Gases What is nitrogen and where is it used? Inerting, laser cutting and food
Nitrogen properties, how it is produced, applications from inerting to laser cutting, purity selection and the risks of liquid nitrogen. 2 min read - Specialty Gases
Calibration gases and specialty mixtures: your reading is only as good as your gas
What certification, traceability and uncertainty mean for a calibration gas, how to choose the balance gas, and what to watch for with reactive components. 2 min read -
Gas Equipment Choosing regulators and gas equipment: single stage or two stage?
Pressure, flow, material and connection in regulator selection; why a flashback arrestor is mandatory and what gets missed in hose maintenance. 3 min read