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Certified Product

Ambient air measurement: "APSA 370"

Certificate Holder: HORIBA, Ltd.

Test Mark Number: 0000028757


The SO2 analyzer measures Sulphur dioxide by means of ultraviolet fluorescence.
UV fluorescence is based on the emission of light by SO2 molecules excited by
UV radiation when they return to their ground state.

The certified components and ranges are:






0 - 700

0 - 1000


CR = certification range
SR = supplementary range

The measurement system was tested by TÜV Rheinland Energie und Umwelt GmbH
in accordance with the European Standards EN 14212
and is certified according to EN 15267 Part 1 and 2.

Furthermore it is published by the German Umweltbundesamt
(Federal Environment Protection Agency) as being suitability tested.

More information:

Further information by the certificate holder about the certified product: The certificate holder has not provided further information about the certified product.
All certificates of HORIBA, Ltd.:

6 certificates for products

Contact to the certificate holder: HORIBA, Ltd.

2 Miyanohigashi, Kisshoin Kyoto
610-8510 Minami-ku