Check lists

SOURCE TEST PRELIMINARY VISIT CHECK LIST... 

What-ll/Checklist combines the creative, brainstorming features of a What-lf with the systematic features of a Checklist. The What-lf analysis considers accidents beyond the checklist the check list lends a systematic structure to the What-lf analysis. A What-lf7Checklist examines the potential consequences of accident scenarios at a more general level than some of the more detailed I l liA methods. It can be used for any type of process at any life cycle stage. 

Hazard Analysis Report - Hazard and Operability Study (HAZOP), failure mode and effect analysis, quantitative fault tree analysis or what/if check list (sec Part IV for details in theses subjects)... 

From a construction viewpoint these summaries are a necessary check list to aid in keeping the construction program organized. Individuals who have no real knowledge of the scope of the Job, and in particular the process, can properly tie the project together in the field by use of these schedules. 

Layout and Process Development Engineering Check-List... 

Table 14-12 is recommended for summarizing data to and from the manufacturer. All data need not be furnished by the purchaser, but the manufacturer must be given the environment conditions or the equivalent standards established by the purchaser. Table 14-13 is a very complete check list for specifying motors. 

Check List for Industrial Plants Electrical Distribution, report. Southern Engineering, p. 33, Nov. (1964). 

At intervals you will find a summary and list of objectives. The summary will emphasise the important points covered by the material that you have read and the objectives will give you a check list of the things you should then be able to achieve. There are notes in the left hand margin, to help orientate you and emphasise new and important messages. 

NPSH (available from system, A), 160 NPSH (required by pump, R), 160 Operating pressure, 408 Operational check-list, safety relief, 428 Orifice areas, relief valves, 437 Sharp edge, 440 Orifice, flow, 82, 83, 119 Air, table, 107 Overpressure, 403 Causes, 427... 

Steam service, 426 Type, 400 Valves, parts, 412 Pressure-vacuum relief, 466 Calculations, 469 Emergency venting, 476-479 Equipment (valves), 468, 478, 480 Fire exposure, 479 Free air, 469, 474 Specification work sheet, 481 Thermal oulbreathing, 468, 469 Vacuum inbreathing, 468, 469, 475 Process check list, 35 Process design organization, 1, 2 Calculations, 37-39 Costs, 43 Manhours, 40-43 Scope, 2... 

Total head, centrifugal pumps, 180, 183 Discharge, 205 Head curve, 198 Suction head, 184, 186 Suction lift, 184, 186 Type, 184 Tubing, 63, 64 Two-phase flow, 124 Calculations, 125-127 Flow patterns, chart, 124 System pressure drop, 125 Types of flow, 124, 125 Utilities check list, process design, 34 Vacuum,... 

Items I through 20 on the reverse side of the form constitute a check list that should be used to indicate the types of information contained within a particular submission. Please check all that apply. The numbering of the items on the checklist is not intended to specify a particular order for the inclusion of those sections into the submission. The applicant may include sections in any order, but the location of those sections within the submission should be clearly indicated in the Index. It is therefore recommended that, particularly for large submissions, the Index immediately follows the Form FDA 356h and, if applicable, the User Fee Cover Sheet (Form FDA 3397). 

A partial check list of operations for an industrial chemical laboratory is shown in Table 1. The format of a formal list will vary considerably from one laboratory to another, but with such an aid, one can easily see which operations are compatible and then group these together. Those that need special treatment will readily stand out. The planner will also be able to estimate the number of rooms required for the total operation. Finally, a complete list of all laboratory functions will facilitate the next step, an estimate of space requirements. 

Perchloroethylene, 168 Periodic table, 22 Permeation index, 437 Permit-to-Work system, 16, 422 check-lists, 423... 

As well as ensuring that the information is clearly and unambiguously presented, standard specification sheets serve as check lists to ensure that all the information required is included. 

Methods for the calculation of pressure drop through pipes and fittings are given in Section 5.4.2 and Volume 1, Chapter 3. It is important that a proper analysis is made of the system and the use of a calculation form (work sheet) to standardize pump-head calculations is recommended. A standard calculation form ensures that a systematic method of calculation is used, and provides a check list to ensure that all the usual factors have been considered. It is also a permanent record of the calculation. Example 5.8 has been set out to illustrate the use of a typical calculation form. The calculation should include a check on the net positive suction head (NPSH) available see section 5.4.3. 

Check lists are useful aids to memory. A check list that has been drawn up by experienced engineers can be a useful guide for the less experienced. However, too great a reliance should never be put on the use of check lists, to the exclusion of all other considerations and techniques. No check list can be completely comprehensive, covering all the factors to be considered for any particular process or operation. 

A short safety check list, covering the main items which should be considered in process design, is given below. 

More detailed check lists are given by Carson and Mumford (1988) and Wells (1980). Balemans (1974) gives a comprehensive list of guidelines for the safe design of chemical plant, drawn up in the form of a check list. A loss prevention check list is included in the Dow Fire and Explosion Index Hazard Classification Guide, Dow (1987). 

The check list is intended to promote thought to raise questions such as is it needed, what are the alternatives, has provision been made for, check for, has it been provided ... 

Balemans, A. W. M. (1974) Check-lists guide lines for safe design of process plants. Loss Prevention and Safety Promotion in the Process Industries, C. H. Bushmann (ed.) (Elsevier). 

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