Quality you can audit.
Certifications, the standards Sonnen helped draft, the methods the instruments comply with, and the performance data behind the ≥99.5% recovery figure.
Certified at every level.
46 models CE-certified
Low Voltage Directive 2014/35/EU conformity across the analyzer line — all 36 current product lines plus legacy variants; the Kjeldahl line was additionally verified to the EMC Directive in 2012. Both certificates are published below.
Quality management system
ISO 9001:2015-certified design, manufacturing and service processes.
Environmental management
ISO 14001:2015-certified environmental management system across manufacturing operations.
Occupational health & safety
ISO 45001:2018-certified occupational health and safety management system.
R&D recognized
National High-Tech Enterprise certification (2017), six software copyright certificates (2016) and the Henan Province Science & Technology Achievement Certificate (2016).
Listed, twice.
On the Approval Supplier List for China’s General Administration of Quality Supervision, Inspection and Quarantine in 2015 and again in 2017; supported by the National Innovation Fund.
Warranty, stated plainly.
Every Sonnen instrument carries a one-year warranty on the main unit as standard. Glassware and consumables are outside the warranty scope; glass components are inspected on delivery and, once confirmed intact on arrival, are likewise excluded.
Warranty service does not cover: units without valid proof of the warranty period; natural wear and ageing of consumables; damage caused by lightning or other power-system faults; damage caused by accident, disaster, war or other force majeure; self-modification, self-repair, or disassembly, modification or repair by third parties not designated by Sonnen; expiry of the warranty period; damage caused by use, maintenance or storage contrary to the product manual; or products not manufactured by Sonnen or without Sonnen identification.
Beyond the warranty year, spare parts are supplied for the lifetime of the instrument and software updates continue long-term — see the six written service commitments.
We don’t just follow standards — we draft them.
The recovery-rate story.
Nitric nitrogen, automated.
Sonnen developed the industry’s automatic determination module for nitric nitrogen — a determination most analyzers still require by hand.
High-nitrogen recovery solved.
Sonnen resolved the long-standing problem of below-spec recovery on high-nitrogen chemical products.
Evidence you can download.
System certificates and sample factory reports are public below. Every instrument ships with its own per-unit test report — the samples here show the actual format and measured figures; request the file for your serial number and we send it.
Reports are issued in Chinese with stamped signatures — the format our domestic regulators audit. Need the report, CE file or calibration specification for another model? Contact our engineers. Calibration basis: JJF 109-2012, the national specification Sonnen helped draft.
Every instrument ships with its verification data.
Ask for the test reports.