Gives guidelines for ensuring the fidelity and security of pulsed data cables transmission systems for the metering of fluids to ensure the integrity of the primary indication. Includes precautions, installation, commissioning and testing, inspection and maintenance. Illustrates typical functional arrangement for pulse security system, level A - E.

Supersedes NBN ISO 6551 (11/2003)

ISO 6551:1982 - Identical

NS EN ISO 6551 Ed. 1 (1995) - Identical

NF EN ISO 6551:1996 - Identical

UNI EN ISO 6551:2000 - Identical

I.S. EN ISO 6551:1996 - Identical

SS EN ISO 6551 Ed. 1 (1996) - Identical

ONORM EN ISO 6551:1996 - Identical

DIN EN ISO 6551 (1996-08) - Identical

BS EN ISO 6551:1996 - Identical

NEN EN ISO 6551:1995 - Identical

SN EN ISO 6551:1997 - Identical