| 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 |  |
1 | | CA/CSA/ExTR12.0019/00 | Automation Products Group, Inc... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR12.0018/00 | Siemens Industry, Inc. 408 US ... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR12.0017/00 | Nuovo Pignone | IEC 60079-0 (Ed.3.1) +... |  |
1 | | CA/CSA/ExTR12.0016/00 | Rex Power Magnetics 65 Basalti... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR12.0015/00 | Woodward, Inc. 1000 E. Drake R... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR12.0013/00 | Computational Systems, Inc. 83... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR12.0011/00 | Nuovo Pignone | IEC 60079-0 (Ed.3.1) +... |  |
1 | | CA/CSA/ExTR12.0010/00 | Sensor Electronics Corporation... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR12.0009/00 | Ormat Systems Ltd. | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR12.0008/00 | FMC Technologies SA Route des ... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR12.0007/00 | BW Technologies by Honeywell 2... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR12.0005/00 | Fisher Controls International ... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR12.0004/00 | WEG Equipamentos Eletricos S.A... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR12.0003/00 | Kato Engineering Inc. 2075 Wes... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR12.0002/00 | Ametek Process Instruments 150... | IEC 60079-0 (Ed.5) |  |
1 | | CA/CSA/ExTR12.0001/00 | Yokogawa Electric Corporation ... | IEC 60079-0 (Ed.3.1) +... |  |
1 | | CA/CSA/ExTR11.0015/01 | Woodward, Inc. 1000 E Drake Rd... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR11.0015/00 | Woodward, Inc. 1000 E Drake Rd... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR11.0010/00 | CHAMPALLE 151, rue Ampère ZI... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR11.0009/00 | Nuovo Pignone Str. Prov. per M... | IEC 60079-0 (Ed.3.1) +... |  |
1 | | CA/CSA/ExTR11.0005/00 | Woodward, Inc. 1000 E. Drake R... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR11.0003/01 | Cameron International Caldon U... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR10.0016/01 | Martel Electronics Corp. 3 Cor... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR10.0014/02 | Azonix Corporation Building 6 ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR09.0016/03 | Watlow Missouri, Inc. dba Watl... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR09.0013/02 | General Electric Company 1030 ... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR09.0010/03 | Azonix Corporation Building 6,... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR09.0010/02 | Azonix Corporation Building 6,... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR09.0006/04 | VEGA Americas, Inc 4241 Allend... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR09.0006/03 | VEGA Americas, Inc 4241 Allend... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR09.0005/02 | Panasonic Canada Inc. 5770 Amb... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR09.0005/01 | Panasonic Canada Inc. 5770 Amb... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR09.0002/02 | Fisher Controls International ... | IEC 60079-0 (Ed.3.1) +... |  |
1 | | CA/CSA/ExTR09.0001/05 | Honeywell International Inc. 5... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR08.0001/04 | BW Technologies by Honeywell 2... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR07.0019/01 | Fisher Controls International ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR07.0018/02 | BW Technologies by Honeywell 2... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR07.0010/02 | Industrial Scientific Co. 1001... | IEC 60079-0 (Ed.5) +... |  |
1 | | CA/CSA/ExTR07.0009/03 | RAE Systems Inc. 3775 North Fi... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR07.0007/02 | Govan Industries PTY LTD 131-1... | IEC 60079-0 (Ed.3.1) +... |  |
1 | | CA/CSA/ExTR07.0006/01 | Fluid Components International... | IEC 60079-0 (Ed.4.0) +... |  |
1 | | CA/CSA/ExTR06.0016/01 | Fisher Controls International ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR06.0015/02 | Xylem FLOW CONTROL, LTD. Patri... | IEC 60079-0 (Ed.3.1) +... |  |
1 | | CA/CSA/ExTR06.0009/07 | BW Technologies by Honeywell 2... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR06.0004/01 | Zed. I Solutions (Canada) Inc.... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR06.0003/09 | Fisher Controls International ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR06.0002/10 | Fisher Controls International ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR06.0002/09 | Fisher Controls International ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR06.0001/10 | Fisher Controls International ... | IEC 60079-0 (Ed.6.0) +... |  |
1 | | CA/CSA/ExTR06.0001/09 | Fisher Controls International ... | IEC 60079-0 (Ed.6.0) +... |  |
| 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 |  |
| 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. |  |
| 50 | 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 |  |
| 2337 | |  |