Precision Liquid Nitrogen — verified purity and consistent delivery for exacting users
Precision Liquid Nitrogen from REAL GAZ is supplied to customers who need to know exactly what is in the dewar: purity, moisture and oxygen are analysed, recorded and reported, not estimated.
Consistency from delivery to delivery matters as much as the headline purity, so we control vessel preparation and transfer as carefully as production.
Consistency from delivery to delivery matters as much as the headline purity, so we control vessel preparation and transfer as carefully as production.
Analytical methods follow ISO 17025, moisture is verified by dew point measurement per ISO 6327, and vessels comply with EN 13458 for laboratory and research use.
Calibration laboratories use precision liquid nitrogen to establish low-temperature fixed points and to stabilise thermometers, while materials testers use it for impact tests at −196 °C. In both cases, the stability of temperature and absence of frost matter more than raw volume. We therefore deliver in clean, dedicated dewars, offer vessel-to-vessel transfer in controlled conditions and record the vessel number against each certificate so the chain of custody is clear. Where a method specifies a fixed cooling rate, we can also advise on the immersion method, bath geometry and level control, because the thermal behaviour of a bath depends on vapour layers as well as on the liquid itself. Documentation can be tailored to the format expected by your quality manager or accreditation body, including the sampling date, analyst, equipment identification and the measurement method used.
🏭 Where Precision Liquid Nitrogen Is Used
- ⚙️ Low-temperature calibration — thermometers and sensors are checked in baths cooled by liquid nitrogen;
- 🔬 Charpy and impact testing — specimens are conditioned at −196 °C before fracture testing of steels and welds;
- 🏥 Quality laboratories — analysis of volatile compounds relies on cold traps filled with certified liquid nitrogen;
- 🚀 Electronic component screening — thermal-shock testing of devices checks reliability across extreme temperatures.
💡 Why Choose REAL GAZ
- ✅ Documented purity — each lot is analysed and the report is attached;
- 🧪 Low moisture — dry nitrogen prevents frost bridging and measurement drift;
- 🎯 Repeatable delivery — dedicated vessels and fixed routines keep results consistent;
- 🔒 Chain of custody — vessel numbers and lot numbers are linked in our records;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- lot analysis for oxygen, moisture and hydrocarbons;
- dedicated vessel cleaning and drying;
- closed transfer to limit contamination;
- temperature and pressure records during filling.
Store precision vessels with lids on, away from sources of moisture, and avoid mixing them with general-purpose nitrogen service. Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies Precision Liquid Nitrogen to testing houses, calibration laboratories and R&D centres in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Share the quality documents your auditor expects and we will match them.
REAL GAZ — measured cold, documented clearly.