Witteveen+Bos Raadgevende ingenieurs
Leeuwenbrug 8, 7411 TJ, DEVENTER, Netherlands
- Accredited standards
- 7
- RvA certificate
- 1
- Site in our directory
- 1
What this lab is accredited for
Our reading of the RvA scope: each standard once, with its official name where we have checked it.
Only this lab. Searches the 7 standard numbers and the 6 official names we hold. When no standard matches, it searches the method text of every scope line.
EN 12619Stationary source emissions - Determination of the mass concentration of total gaseous organic carbon - Continuous flame ionisation detector method
EN 13725
EN 14789Stationary source emissions - Determination of volume concentration of oxygen - Standard reference method: Paramagnetism
EN 14790Stationary source emissions - Determination of the water vapour in ducts - Standard reference method
EN 15259Air quality - Measurement of stationary source emissions - Requirements for measurement sections and sites and for the measurement objective, plan and report
ISO 10396Stationary source emissions - Sampling for the automated determination of gas emission concentrations for permanently-installed monitoring systems
ISO 16911-1Stationary source emissions - Manual and automatic determination of velocity and volume flow rate in ducts - Part 1: Manual reference method
EN ISO/IEC 17025:2017; NTA 9065: 2012; NEN-EN 13725:2003; NEN-ISO 10396:1999; NEN-EN 15259; NEN-EN-ISO 16911-1; NEN-EN 14790; NEN-EN 14789; NEN-EN 12619
Read from the RvA scope document we downloaded on 2026-02-12. Register refreshed 2026-11-08.
Scope as published by RvA
2 lines
ISO/IEC 17025
ActiveL402
The scope document we hold says it is valid until 2027-06-01.
Accredited scope, certificate L402
| Line | Method | Matrix | Range |
|---|---|---|---|
| 1 | EN ISO/IEC 17025:2017; NPR-CEN/TS 13649 | Emitted air, smoke, process and exhaust gases | - |
| 2 | EN ISO/IEC 17025:2017; NTA 9065: 2012; NEN-EN 13725:2003; NEN-ISO 10396:1999; NEN-EN 15259; NEN-EN-ISO 16911-1; NEN-EN 14790; NEN-EN 14789; NEN-EN 12619 | Air and (process) gases; Emitted air, smoke, process and exhaust gases | - |
Ranges are reproduced from the accredited scope document as published, and only where we found that range printed in the document for the line. Otherwise the cell reads “See scope document”. An absent range means the register did not state one. Line numbers are ours, for cross-reference; they follow the order of the scope document.
Location
Accreditation data refreshed from the RvA register on .
This page mirrors a public register. For a purchasing, audit or regulatory decision, confirm against the RvA entry linked above.