id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-13102		cet-13102		6	.pdf	application/pdf	2629	97	50	The main ones are: • the use of mandatory parameters (temperature, pressure, flow rate, level, composition), • the use of abbreviations to indicate the type of failure or event (e.g. H.E. = Human Error, etc.) with a series of predefined terms which can anyway be customized by the user, 139 • the causes must correspond to elementary events, i.e. failures, anomalies, human errors, ..., which can be associated to an expected frequency, • each event must be associated with the code reported in the P&I in order to obtain the list of critical components and allow MCS equations development, • for each identified cause an effect or consequence is identified, which may consist of a deviation of another parameter in the same node or in another node, or an ultimate consequence (Top Event), • the guide words can be used to describe a sequence of effects, each of which will become cause of a further effect, as exemplified in Figure 1 Figure 1: HazOp Worksheet 2.1 Articulation of the file containing the worksheets The HazOp worksheet is divided into 4 sections: 1) parameters, 2) causes, 3) effects, 4) AlbatrosIII allows to obtain the MCSs for each identified Top Event, by providing a summary of the causes (elementary events) with the percentage contribution of each MCS to the frequency of Top Event, as illustrated below.	cache/cet-13102.pdf	txt/cet-13102.txt