ANSI
American National Standards Institute.
www.ansi.org

API
American Petroleum Institute.
www.api.org

ATEX
EU Directive 94/9/EC. Beschreibt Geräte und Schutzsysteme zur Verwendung in explosionsgefährteten Bereichen

BASEEFA
British Approvals Service for Electrical Equipment in Flammable Atmospheres (UK)

CEC
Canadian Electric Code.

CEN
European Committee for Standardisation.
www.cenorm.be

CENELEC
European Committee for Electrotechnical Standardization.
www.cenelec.org

CEPEL
Centro de Pesquisas de Energia Electrica (Brazil).
www.cepel.br

CSA
Canadian Standards Association.
www.csa.ca

DCS
Digital Control System

DNV
Det Norske Veritas – Norwegische Zulassungsbehörde.
www.dnv.com

EECS
Electrical Equipment Certification Service (UK).

FM
Factory Mutual Research Corporation (USA).
www.osha.gov

HCF
HART Communication Foundation.
www.hartcomm.org

IEC
International Electrotechnical Commission.
www.iec.org

IECEx
Das Ziel des IECEx Programms ist, den internationalen Handel in elektrischen Geräten (die zum Gebrauch in explosionsgefährdeten Atmosphären bestimmt sind) zu erleichtern, indem die Notwendigkeit für mehrfache nationale Bescheinigungen eliminiert wird.
www.iecex.com

IEEE
Institute of Electrical and Electronics Engineers.
www.ieee.org

INMETRO
Instituto Nacional de Metrologia, Normalizacão Qualidade Industrial (Brazil)
www.inmetro.gov.br

ISA
The International Society for Measurement and Control (früher Instrument Society of America)
www.isa.org

ISO
International Organisations for Standardisation.

NEC
National Electric Code  (ANSI/NFPA 70)

NEMA
National Electrical Manufacturers Association.
www.nema.org

PNO
PROFIBUS Nutzerorganisation e.V.
www.profibus.com

SCS
SIRA Certification Service (UK).
www.siraservices.com

UL
Underwriters Laboratories Inc  (USA)

ZVEI
Zentralverband Elektrotechnik- und Elektronikindustrie.
www.zvei.de