Safety integrity levels

Cards in this group · 4

1. Y4.06.1A safety integrity level sets how far a function's failure probability must drop, based on consequence
2. Y4.06.2A higher safety integrity level demands real independence between channels, not just one more sensor
3. Y4.06.3A safety function's failure probability has to be reconfirmed by periodic testing, not assumed forever
4. Y4.06.4Treating general reliability as if it were safety integrity leads to a function that's durable, not safe