Electricity metering equipment (ac) - Acceptance inspection - Part 21: Particular requirements for electromechanical meters for active energy (classes 0,5, 1 and 2) (Endorsed by AENOR in February of 2011.)
Edition 2011-02-01

Electricity metering equipment (a.c.) - Acceptance inspection - Part 31: Particular requirements for static meters for active energy (classes 0,2 S, 0,5 S, 1 and 2, and class indexes A, B and C)
Edition 2011-05-11

Detail specification: Fixed low power film SMD resistors - Rectangular - Stability classes 0,1; 0,25; 0,5; 1 (Endorsed by AENOR in January of 2008.)
Edition 2008-01-01

Detail specification: Fixed low power film SMD resistors - Rectangular - Stability classes 0,1; 0,25; 0,5; 1 (Endorsed by AENOR in January of 2014.)
Edition 2014-01-01

Detail specification: Fixed low power film SMD resistors - Rectangular - Stability classes 1; 2 (Endorsed by AENOR in January of 2008.)
Edition 2008-01-01

Detail specification: Fixed low power film SMD resistors - Rectangular - Stability classes 1; 2 (Endorsed by AENOR in January of 2011.)
Edition 2011-01-01

Detail specification: Fixed low power film SMD resistors - Rectangular - Stability classes 1; 2 (Endorsed by AENOR in January of 2014.)
Edition 2014-01-01

Detail specification: Fixed low power film SMD resistors - Rectangular - Stability classes 1; 2 (Endorsed by Asociación Española de Normalización in April of 2017.)
Edition 2017-04-01

Detail specification: Fixed low power film SMD resistors - Cylindrical - Stability classes 0,05; 0,1; 0,25; 0,5; 1; 2 (Endorsed by AENOR in January of 2008.)
Edition 2008-01-01

Detail specification: Fixed low power film SMD resistors - Cylindrical - Stability classes 0,05; 0,1; 0,25; 0,5; 1; 2 (Endorsed by AENOR in January of 2011.)
Edition 2011-01-01