🇨🇿 Český hydrometeorologický ústav PL

ČIA 2284 • Praha 4, Czech Republic • 5 calibration items

Metrology & calibration

Český hydrometeorologický ústav is a calibration laboratory accredited by ČIA under number 2284 (Praha 4, Czech Republic). Its accreditation scope covers 5 calibration items in the following areas: Metrology & calibration. Calibrated items include: BTX in air/nitrogen, CO in air/nitrogen, NO – NOX in air/nitrogen, O3 in air. Most frequently used calibration principles: Static pressure injection with transfer to a working reference stan…, Direct comparison with a primary BTX reference material, Reference to an O3 reference standard.

At a glance

Accreditation number: ČIA 2284
Calibration items in scope: 5
Types of calibrated items: 5
Calibration principles used: 3
City: Praha 4, Czech Republic
Valid until: 06-02-2028

Accreditation number: 2284
Accreditation body: ČIA
Address: Generála Šišky 942, 143 00 Praha 4
City: Praha 4, Czech Republic
Division: Laboratorium wzorcujące imisji
Valid until: 06-02-2028

What this laboratory calibrates (5)

BTX in air/nitrogen — 1 calibration item
CO in air/nitrogen — 1 calibration item
NO – NOX in air/nitrogen — 1 calibration item
O3 in air — 1 calibration item
SO2 in air — 1 calibration item

Calibration principles (3)

Static pressure injection with transfer to a working reference standard — 3 calibration items
Direct comparison with a primary BTX reference material — 1 calibration item
Reference to an O3 reference standard — 1 calibration item

Certificate information

Certificate date: 29.09.2025

Accreditation scope — calibration items (5)

CMC — lowest stated expanded measurement uncertainty (ILAC-P14, EA-4/02 M); if not stated otherwise, coverage probability approx. 95 % and values without a unit are relative to the measured value. The uncertainty of a specific calibration may be higher.

No.	Calibrated quantity / subject of calibration	Nominal range / parameters / CMC	Calibration principle	Calibration procedure
Calibration items
1	SO2 in air	Calibration – physicochemical quantities (gas concentration) 0 nmol/mol to 80 nmol/mol · CMC 1,2 nmol/mol 80 nmol/mol to 500 nmol/mol · CMC 1,6 % CMC for the field of measured quantity: Physicochemical quantities (gas concentration)	Static pressure injection with transfer to a working reference standard	IP-001 + IP-000
2	NO – NOX in air/nitrogen	Calibration – physicochemical quantities (gas concentration) 0 nmol/mol to 100 nmol/mol · CMC 1,2 nmol/mol 100 nmol/mol to 500 nmol/mol · CMC 1,3 % CMC for the field of measured quantity: Physicochemical quantities (gas concentration)	Static pressure injection with transfer to a working reference standard	IP-002 + IP-000
3	CO in air/nitrogen	Calibration – physicochemical quantities (gas concentration) 0 nmol/mol to 4500 nmol/mol · CMC 35 nmol/mol 4500 nmol/mol to 20000 nmol/mol · CMC 0,84 % CMC for the field of measured quantity: Physicochemical quantities (gas concentration)	Static pressure injection with transfer to a working reference standard	IP-003 + IP-000
4	O3 in air	Calibration – physicochemical quantities (gas concentration) 0 nmol/mol to 50 nmol/mol · CMC 1,1 nmol/mol 50 nmol/mol to 1000 nmol/mol · CMC 0,93 % CMC for the field of measured quantity: Physicochemical quantities (gas concentration)	Reference to an O3 reference standard	IP-004 + IP-000
5	BTX in air/nitrogen	Calibration – physicochemical quantities (gas concentration) 0 nmol/mol to 1 nmol/mol · CMC 0,035 nmol/mol 1 nmol/mol to 12 nmol/mol · CMC 3,3 % CMC for the field of measured quantity: Physicochemical quantities (gas concentration)	Direct comparison with a primary BTX reference material	IP-005 + IP-000

Reference standards (6)

IP-000

IP-001

IP-002

IP-003

IP-004

IP-005

The same scope as data (JSON): https://labcoda.pl/api/accreditation-scopes/labs/CZ/2284