Lexicon

Main standardisation organisations

AFNOR	Association Française de Normalisation
ANSI	American National Standard Institute
API	American Petroleum Institute
ASME	American Society of Mechanical Engineers
ASTM	American Society for Testing Materials
DIN	Deutsches Institut für Normung
ISO	International Organisation for Standardisation
JIS	Japanese Industrial Standards
NACE	National Association of Corrosion Engineers
SMS	Swedish Metric Standard

DN	Nominal size
NPS	Nominal pipe size
PS	Maximum allowable pressure
TS	Minimum/maximum allowable temperature
BSP	British Standard Pipe thread (BSPP: Parallel, acc. to ISO 228 / BSPT: Tapered, acc. to ISO 7)
NPT	National Pipe Tapered, acc. to ANSI B1.20
BW	Butt Weld, acc. to ASME B16.9
SW	Socket Weld, acc. to ASME B16.11
RF	Raised flange, acc. to ISO 1092-1 & ANSI B16.5
M	Male
F	Female
IP	Ingress Protection
ATEX	Explosive Atmosphere

ABS	Acrylonitrile Butadiene Styrene
CR	Polychloroprene (such as Neoprene®)
CSM	Chlorosulphonated Polyethylene (such as Hypalon®)
ECO	Epichlorhydrin Rubber
EPDM	Ethylene Propylene Diene Monomer
FKM	Fluorinated Propylene Monomer (such as Viton®)
HDPE	High Density Polyethylene
NBR	Nitrile Butadiene Rubber
NR	Natural Rubber
PA	Polyamide
PE	Polyethylene
PEEK	Polyether Ether Ketone
PEX	Cross-linked Polyethylene
POM	Polyoxymethylene
PP	Polypropylene
PTFE	Polytetrafluoroethylene
PU	Polyurethane
PVC	Polyvinyl Chloride
PVDF	Polyvinylidene Fluoride
RTFE	Reinforced Polytetrafluoroethylene (with 15% glass fiber)
SBR	Styrene Butadiene Rubber
UHMWPE	Ultra-high-molecular-weight polyethylene