Start > Compressed Gases

Compressed Gases

Compressed gases play a central role in many industrial and pharmaceutical applications. Whether for production, analysis, or as an excipient – the quality of the gases must meet the highest purity and safety standards. Through comprehensive testing, we ensure that your compressed gas systems comply with regulatory requirements and operate reliably.

Vorgehensweise

Our Process for Compressed Gas Testing

Schritt 01

Preparation & Coordination

Schritt 02

On-Site Measurements

Schritt 03

Evaluation & Standard Comparison

Schritt 04

Documentation Creation

Schritt 05

Measures & Recommendations

All measurements are performed according to DIN ISO 8573 as well as the requirements of EU GMP Guideline Annex 1, § 6.17.
This ensures that compressed gas testing is both technically correct and fully covered regulatorily.

Our Services at a Glance

Moisture Content in Compressed Gases

Learn more

Water promotes microbiological contamination, which is why the moisture content in compressed gases is strictly regulated (max. 67 ppmV according to pharmacopoeias, classification according to ISO 8573). We measure the moisture content on-site and convert it into company-specific moisture values and ISO 8573 classifications.

Particle Content in Compressed Gases

Learn more

The purity of process gases is often neglected, although they are product-contacting and influence cleanrooms. We test the particle content in process gases according to DIN ISO 8573.

Microbiological Examinations

Learn more

Pharmaceutical compressed gases must meet the microbiological limit values of the purity classes, especially when in product contact. We use a microbial air sampler for sampling on agar plates, which are specified according to the EU Guidelines. In case of a positive result, germ identification is possible.

Oil Vapor Content

Learn more

The Pharmacopoeia (Ph. Eur.) specifies a maximum concentration of 0.1 mg/m³ oil content, while
ISO 8573 uses class definitions. We utilize a special device that enables a defined sampling volume under controlled conditions. The compressed air is passed over activated carbon to adsorb oil vapor. The content of hydrocarbons (C6-C40) is then determined in the laboratory.

Oxygen Content

Learn more

Using a mobile oxygen analyzer, the oxygen content in the compressed gas can be tested according to the requirements of the Pharmacopoeia (Ph. Eur.).

Carbon Monoxide, Carbon Dioxide, and Argon Content

Learn more

Pharmaceutical nitrogen must have a purity of at least 99.5% according to Ph. Eur., with trace gases such as CO, CO2, Ar, and O2 having limit values. We identify nitrogen and determine the content of these gases using a mobile gas chromatograph.

Gaseous Impurities

Learn more

With appropriate short-term tubes, we determine, among other things, the content of: Nitrous gases, water content, oil content, carbon monoxide and dioxide, sulfur dioxide.