News
IEC TR 61511-4 explains the changes between IEC 61511-1 Ed. 1 and Ed. 2
Our previous blog on IEC 61511-1 discussed the significant updates incorporated in Ed. 2 (issued in 2016). IEC TR 61511-4:2020 is a formal rationale
HAZOP, LOPA per Video Conference
In times of restricted travel and social distancing, HAZOP and LOPA Workshops per video conference are a viable alternative. With engineering / operational
HAZOP Update – Death Star
IEC 61511 recognises the need for HAZOP update during the Safety Life Cycle. Even without plant modification, it is recommended to update HRA every
Proof Test Coverage (PTC) – NAMUR Worksheet NE-106
The revised NAMUR Worksheet NE-106 (Issue: 2018-09-06) now gives examples of generic proof tests for sensors and actuators, as well as corresponding Proof Test
DIN EN 61511:2019 is now available
The long awaited german language version of IEC 61511 Ed. 2 was published at the end of January 2019 (DIN EN 61511-1,-2,-3:2019-02; VDE 0810-1,-2,-3:2019-02)
HAZOP – Consequences of Overpressure
Define realistic HAZOP consequences based on degree of overpressure. Anyone who has taken part in a HAZOP will know the discussion about the consequences