| Issuing ExTL | ExTR Ref. Number | Manufacturer | Standards covered | |
| 256 | BAS - Baseefa |  |
| 31 | BAS - SGS Baseefa Limited |  |
| 6 | BKI - Testing Station for Explosion Proof Equipment |  |
| 202 | BVS - DEKRA EXAM GmbH |  |
| 3 | CCVE - NANIO "CCVE" |  |
| 35 | CES - CESI |  |
| 18 | CQST - China National Quality Supervision and Test |  |
| 50 | CSA - CSA International |  |
| 161 | DEK - DEKRA Certification B.V. |  |
| 21 | DNV - DNV |  |
| 52 | EPS - Bureau Veritas Consumer Products Services Germany GmbH |  |
| 15 | ETL - Intertek |  |
| 107 | FMG - FM Approvals LLC |  |
| 31 | FTZU - Fyzikalne technicky zkusebni ustav |  |
| 44 | IBE - IBExU Institut für Sicherheitstechnik GmbH |  |
| 67 | INE - INERIS |  |
| 26 | ITA - TUV Rheinland Australia Pty. Ltd |  |
| 63 | ITS - Intertek Testing & Certification Limited |  |
1 | | GB/ITS/ExTR12.0084/00 | BEKA associates Limited Old Ch... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0077/00 | Nittan | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0076/00 | Nittan | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0075/00 | Baldwin & Francis Limited Pres... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0073/00 | Nittan | IEC 60079-0-am1 (Ed.3) +... |  |
1 | | GB/ITS/ExTR12.0055/00 | Fibox Oy Ab Keilaranta 19 0215... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR12.0051/00 | Purge Solutions | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0050/00 | Gallagher Fuel Systems Ltd | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0049/00 | Siemens Industrial Turbomachin... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0048/01 | SERVOMEX GROUP | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0048/00 | SERVOMEX GROUP | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0046/01 | Gallagher Fuel Systems Ltd 2 S... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0046/00 | Gallagher Fuel Systems Ltd 2 S... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0044/00 | Gallagher Fuel Systems Ltd 2 S... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0037/00 | Tyco Safety Products Security ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0036/00 | Baliga Lighting Equipments Lim... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0035/00 | Specialist Services AL QUOZ In... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0032/01 | GasTOPS Ltd | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0032/00 | GasTOPS Ltd 1011 Polytek Stree... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0018/01 | Sandvik Asia Pvt. Ltd 49 & 49B... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0018/00 | Sandvik Asia Pvt. Ltd | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0016/00 | Pyroban Ltd Endeavour Works Do... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0015/00 | ABB Engineering (Shanghai) Ltd... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | GB/ITS/ExTR12.0014/00 | ABB Engineering (Shanghai) Ltd... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | GB/ITS/ExTR12.0013/00 | ABB Engineering (Shanghai) Ltd... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | GB/ITS/ExTR12.0012/00 | ABB Engineering (Shanghai) Ltd... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | GB/ITS/ExTR12.0006/00 | Pyroban Ltd Dolphin Road, Shor... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0004/01 | Cortem S.p.A | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0004/00 | Cortem S.p.A | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR12.0003/01 | Westlock Controls Ltd | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR12.0003/00 | Westlock Controls Ltd | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR12.0002/01 | Icon Scientific Limited Unit 8... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR12.0002/00 | Icon Scientific Limited Unit 8... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR12.0001/00 | Teledyne Analytical Instrument... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0064/00 | Analytical Technology & Contro... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR11.0061/00 | CONTINENTAL DISC CORPORATION ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR11.0058/01 | Cortem Group Via Aquileia, 10... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR11.0057/00 | WESTLOCK Controls Ltd 22 Chap... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR11.0055/00 | Pelican Products Inc 23215 Ear... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0054/01 | OPTOSENSE LLC Engelsa pr. 27-A... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR11.0051/01 | NACRE AS Sluppenvegen 12E NO-7... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR11.0049/00 | R. Stahl Schaltgeräte GmbH Am... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0043/00 | Eneida IPN Incubadora Rua Pedr... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0042/00 | Eneida IPN Incubadora Rua Pedr... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0039/00 | R. Stahl Schaltgeräte GmbH Am ... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0038/00 | R. Stahl Schaltgeräte GmbH Am ... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0034/02 | Dräger Safety AG & Co. KGaA Re... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0034/01 | Dräger Safety AG & Co. KGaA Re... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR11.0010/01 | GE Reuter Stokes 8499 Darrow R... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0058/01 | EnerSys Mining and Special Bat... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0052/01 | Oxalis Group Ltd | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0044/01 | Expo Technologies Ltd Summer R... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0041/02 | Clements National Company 6650... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0039/01 | Pharos Marine Ltd | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0024/01 | Draeger Safety UK Ltd Ullswate... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0024/00 | Draeger Safety UK Ltd Ullswate... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR10.0011/02 | AI-TEK Instruments, LLC 152 Kn... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR09.0039/03 | Extronics Limited 1, Dalton Wa... | IEC 60079-0 (Ed.5) +... |  |
1 | | GB/ITS/ExTR09.0030/01 | BEKA associates Limited Old Ch... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR09.0024/01 | Westlock Control Limited 22 Ch... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR09.0020/02 | Westlock Controls Ltd 22 Chapm... | IEC 60079-0-am1 (Ed.3) |  |
1 | | GB/ITS/ExTR08.0051/03 | Expo Technologies Ltd Summer R... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | GB/ITS/ExTR08.0051/02 | Expo Technologies Ltd Summer R... | IEC 60079-0 (Ed.5) +... |  |
| 8 | KDB - Central Mining Institute Experimental Mine "Barbara" |  |
| 9 | KDB - Główny Instytut Górnictwa, Kopalnia Doświadczalna „BARBARA” |  |
| 27 | KEM - DEKRA Certification B.V. |  |
| 35 | KGS - Korea Gas Safety Corporation |  |
| 3 | KOS - Korea Occupational Safety and Health Agency (KOSHA) |  |
| 15 | KTL - Korea Testing Laboratory |  |
| 68 | LCI - Laboratoire Central des Industries Electriques (LCIE) |  |
| 32 | LCIE - Laboratoire Central des Industries Electriques (LCIE) |  |
| 2 | MST - Mine Safety Technology Centre (MSTC), |  |
| 27 | NEM - NEMKO |  |
| 21 | NEPSI - National Supervision and Inspection Centre for |  |
| 32 | PCEC - Supervision & test Centre of Ex-products of |  |
| 138 | PTB - Physikalisch-Technische Bundesanstalt (PTB) |  |
| 6 | QPS - QPS |  |
| 14 | SEV - Electrosuisse div. Testing and Certification |  |
| 14 | SIM - Safety in Mines Testing and Research Station (Simtars) |  |
| 1 | SIQ - Slovenian Institute of Quality and Metrology (SIQ) |  |
| 348 | SIR - SIRA Certification Service |  |
| 3 | SP - SP Technical Research Institute of Sweden |  |
| 1 | TPS - TÜV SÜD Product Service GmbH |  |
| 1 | TRC - TRaC EMC & Safety Ltd |  |
| 35 | TRC - TRaC Global Ltd. |  |
| 49 | TSA - TestSafe Australia |  |
| 49 | TUN - TÜV NORD CERT GmbH |  |
| 24 | TUR - TUV Rheinland Industrie Service GmbH |  |
| 129 | UL - UL LLC |  |
| 1 | UL - Underwriters Laboratories Inc (UL) |  |
| 22 | ULD - UL International DEMKO A/S |  |
| 18 | VTT - VTT Expert Services Ltd. |  |
| 16 | ZLM - ZELM Explosionsschutz GmbH |  |
| 2336 | |  |