SING-WI-LL-24 REV 0

SING-WI-300-01f1 Rev0 July 2008
Department Work Instruction
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3D Model Review Procedure
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Quality – Singapore
Functional Department:
Piping Department
Previous Rev & Issue Date:
Nil
Effective Date:
04 January 2010
The current applicable version of this publication resides on JNET Singapore Office – Quality Page.
This copy is considered as UNCONTROLLED once printed out.
1.0 PURPOSE .............................................................................................................4
2.0 SCOPE ..................................................................................................................4
3.0 OVERVIEW ...........................................................................................................5
3.1 General.............................................................................................................................5
3.2 Weekly / Daily Reviews ....................................................................................................5
3.3 Modelling Scope...............................................................................................................6
3.4 3D Model Output ..............................................................................................................7
3.5 Review & Comments Recording ......................................................................................8
4.0 DESIGN MILESTONES ........................................................................................8
5.0 30% MODEL REVIEW..........................................................................................9
5.1 30% Review Stage Requirements....................................................................................9
5.2 Modelling & Review........................................................................................................10
5.3 Outcome & Objectives....................................................................................................11
6.0 60% MODEL REVIEW........................................................................................12
6.1 60% Review Stage Requirements..................................................................................12
7.0 90% MODEL REVIEW........................................................................................15
7.1 90% Review Stage Requirements..................................................................................15
8.0 MILESTONES SCOPE MATRIX.........................................................................18
8.1 Piping and Mechanical: ..................................................................................................18
8.2 Building Services:...........................................................................................................19
8.3 Civil and Structural: ........................................................................................................20
8.4 Architectural: ..................................................................................................................22
8.5 Electrical:........................................................................................................................23
8.6 Instrumentation:..............................................................................................................24
9.0 RELATED DOCUMENTATION (REFERENCES)..............................................25
10.0 RECORDS...........................................................................................................25

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PAGE COUNT
Document No. No. of Pages
Main Document
SING-WI-LL-24 25
Related Documents
WI-LL-24f1 1
WI-LL-24f2 1
WI-LL-24f3 1
WI-LL-24f4 1
Sub-Total 4
TOTAL PAGES 25 + 4 = 29

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1.0 PURPOSE
The purpose of this Work Instruction is to establish the procedures for the review of the
3D model.
2.0 SCOPE
This Work Instruction describes procedures and guidelines for review of the 3D model
and is applicable to all projects where PDS 3D software is being utilized for design.
Note: Although, this procedure is primarily applicable to PDS, similar guidelines can be extended to other modelling
software such as AUTOPLANT and PDMS with appropriate considerations to issues that are software specific.
 Refer to WI-LL-24f2 for the 3D Workflow Diagram
Inputs required for 3D model development, design progress to be made and output
expectations from the model at various stages of completion are identified.
 The stages of the 3D model reviews are milestones and expressed in terms of
percentage, not necessarily equal to percentage of engineering progress made.
 The objectives of the 3D model review are to ensure:-
 Design has progressed to the expected stage as planned
 Model incorporates progress made in design and vendor data available to date
 Design meets all process functionality, engineering and HSE requirements
 Constructability, Operability and Maintainability requirements are incorporated
 Standardized design philosophies are utilized across the project
 Client’s Standards, as applicable, are adhered
 Modelled work is clash free and inter-discipline interfaces are incorporated
 Design deficiencies are clearly identified
 Time based path forward for resolving open items
 This document lists the roles and responsibilities of all engineering disciplines and
their contributions towards successful completion of the 3D model. All disciplines
(Piping, Process, Mechanical, Civil, Architectural, Electrical, Instrumentation and
Building Services and DTS) shall be actively involved during the reviews.
 Inputs required to reach each milestone completion are identified.
 Modelling and review expectations of the 3D model and the outcomes and
objectives of each milestone completion are listed.
 These formal reviews shall be treated as important milestones for Project schedule.
All stake holders i.e. Technology (Licensor), Engineering, Projects, Construction,
Operations and Maintenance departments shall participate in these sessions.
 These formal reviews do not substitute regular weekly review sessions and these
are not line by line reviews.
 The review methodology, review agenda and participants for each formal review
shall be discussed and agreed with the Client before the review.

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3.0 OVERVIEW
3.1 General
3.1.1 It is essential to conduct formal Client reviews of the 3D model at appropriate pre-fixed
time intervals throughout the duration of the project and get Client’s approval for the
design that is completed.
3.1.2 Depending upon the size of the project and the number of units involved, the project
may be divided into sub-areas so that the 3D model reviews can be conducted
independently. The Client’s Project Managers and Jacob’s Project Engineering
Managers shall be the focal point of contact for all reviews, comments and close outs.
3.1.3 NAVISWORKS software shall be used for the formal model reviews.
3.1.4 The formal model reviews shall be conducted over a period of three to five working
days, depending on each area.
3.2 Weekly / Daily Reviews
3.2.1 Apart from formal model reviews, weekly model reviews shall continue throughout the
project duration to address ongoing action points and monitor progress and quality of
the 3D model.
3.2.2 An action log (WI-LL-24f4) shall be maintained by the Project Engineering Manager to
record and track the weekly model review comments for all the disciplines. Actions that
are completed shall be suitably tagged. The completed and/or tagged action points shall
be reviewed in the successive sessions and closed out.
3.2.3 Separate line wise reviews shall also be conducted to ensure that the line modelling is
consistent with inputs (mainly process) and checked for stress, accessibility of valves
and instruments, supporting is taken care of, slopes, no-pocket and specific
requirements are adhered to and all holds & assumptions are documented.
3.2.4 During these reviews, checks shall be done to ensure that the model is updated in line
with latest vendor documents and with agreed comments of previous review sessions.
3.2.5 Line wise checking requires more time. It may not be feasible to check and obtain
approval for lines modelled during the entire week, during the weekly review sessions.
Therefore, at some point of time during the execution of the project, daily reviews will be
required. Based on the checking backlog of modelled lines, the PEM / Lead Engineer
shall discuss and agree upon the requirement for daily reviews with the Client’s PM.
The focus of the daily reviews must be to check / approve all the lines modelled during
the previous days and clear the backlogs.

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3.2.6 Lines that are checked and approved shall be ‘locked’ in the 3D model to prevent
unauthorized modifications and to control further changes. This could only be done at a
certain stage of the model. That is, certain lines could be locked after 60% model review
and later during reviews that are called specifically to approve lines and lock them either
by area or system wise.
3.2.7 A working copy of the line list shall be maintained and duly updated to record and track
line wise review comments and balance points (including holds and assumptions).
3.2.8 NAVISWORKS software shall be used for the weekly and daily model reviews
3.3 Modelling Scope
3.3.1 Entire plant shall be modelled. The exceptions are listed as below. Intention is to get
quality output documents that have undergone multi-disciplinary checks and reviewed
by technology, construction and operations and maintenance departments.
3.3.2 All above ground work and underground services shall be modelled. Piling shall be
modelled to a depth of 5 meters to ensure that all underground services are clash free
3.3.3 Non-process buildings may not be modelled. However, these buildings outlines shall be
modelled as shell/envelope with coordinates. Process buildings interiors such as
electrical/ instrumentation rooms, office rooms and similar enclosed rooms will not be
modelled. Only their encompassing walls shall be modelled.
3.3.4 Building services, electrical and instrumentation equipment installed outside shall be
modelled as envelopes only, for space & interface management.
3.3.5 Extent of items to be modelled has to be agreed with the client during scope definition.
The following should be treated as a guideline only.
 All sizes of piping (with insulation, as applicable)
(Tubing will not be modeled. Only manifolds will be modeled)
 All equipment (including portable equipment, as applicable)
(The extent of modeling of vendor package units must be discussed and agreed)
 All inline items
 All supports
 All piles, trenches, substructure and superstructure
(Concrete rebars, anchor bolts, etc details are not to be modeled. They are only modeled to
shape)
 All steel structural work, including platforms, stairs, walkways, ladders, chequered
plates, gratings, handrails, openings
 Floor slopes, Roads, paving, drains, space for trees and plants
 Buildings (refer to clause 3.3.3). External walls – brick walls, cladding, windows,
louvers, doors, openings for cables, piping, ducts and other services

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 Main and branch cable trays (≥100 mm width), spaces for conduits (≥ Ø50 mm),
raceways and tubing/ tubing trays (≥100 mm width)
 Offline instruments (modeled by piping as per input given by Instrumentation)
 Instrument stands, manifolds, Field local panels, junction boxes, remote I/O panels
 Electrical light fittings with supports, street lights with poles, stanchion mounted
lights with stanchions
(Supports could be modeled as spaces. Intention is not to produce support drawings from
the model, but to provide spaces clash-free)
 Field electrical panels, JB, socket outlets, control stations and similar with supports
 Fire protection system equipment such as pumps, FW tanks, hydrants, hose boxes,
monitors, foam tanks, operating platforms, valve manifolds, deluge outlets,
sprinklers, all Fire protection systems piping
 Process and non-process duct work in all areas (except those inside non-process
buildings and areas excluded for modeling. See clause 3.3.3 above)
 Envelopes for safety and escape routes, maintenance spaces
 Spaces for ambulance parking, ambulance and Fire engine movements, loading/
unloading trucks, vans and similar ones parked inside the plant
 Spaces and travel path for mobile and portable equipments
 Spaces and travel path for crane / hoist hooks, taking into account the size of the
item or equipment that is to be carried / handled
 Spaces for temporary storage of materials during shutdown and normal operation
and maintenance of plant and lay down yards
 Interface with external / Third party suppliers and service providers
3.3.6 It is the responsibility of the DTS group to set up the PDS model volumes and also
define the naming procedures at the very onset. The DTS group will prepare and issue
for every project, a document which clearly describes the model volume nomenclature.
3.4 3D Model Output
3.4.1 The Intention of the formal reviews and the weekly / daily reviews is to get quality output
documents that have undergone multi-disciplinary checks and reviewed by technology,
construction and operations and maintenance departments.
3.4.2 All 2D layout type drawings developed for the project shall have their coordinates (X-
refs) extracted from 3D only. None of the 2D layout type drawings shall be developed
independently. This is mandatory requirement for ensuring consistency between the
drawings issued for the project.
(Appropriate considerations to issues that are software specific must be applied).

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3.4.3 Documents that are extracted from 3D model are listed below. However, this is only a
guideline and depends upon project and modelling scope.
 Plot plans  Equipment layouts  Piping layouts
 Isometrics  Nozzle Orientation drawings  Support detail drawings
 MTO
 Structural steel drawings  Platform drawings
 Cable tray layouts (will include field panels, JB, etc)  Lighting layouts (will include field
panels)  Instrument location plans (will include field panels, RIO cabinets, JB, etc)
 Ducting layouts  Sprinkler & deluge location plans  Fire hydrant/monitor location
plans
 X-refs/ Base lines for all 2D layout drawings
3.5 Review & Comments Recording
3.5.1 The comments that are generated during the formal model reviews shall be properly
documented in a defined manner.
3.5.2 The spreadsheet WI-LL-24f1 shall be used for recording all the review comments. Refer
to Section 9.0 of this Work Instruction.
3.5.3 After each review, all comments shall be compiled together by the Project Engineering
Manager into a model review action report and circulated to all disciplines and to Client.
This will be the checklist (or punch list) for incorporation into 3D model and closing out
all the action points.
3.5.4 Once the action points in the spreadsheet are closed, then no further change in the
design is expected.
3.5.5 The comments and actions of the weekly reviews shall be maintained as a Weekly
Action Log (WI-LL-24f4) by the Project Engineering Manager. Refer to Section 9.0 of
this Work Instruction.
4.0 DESIGN MILESTONES
 The 3D model shall be formally reviewed with the Client at three milestone stages of
completion. The stages are 30%, 60% and finally 90%.
 Incorporation of the formal model review comments and close out shall be the
foremost action point for the subsequent stage.
 Completion of formal model review and incorporation of all comments and close out
shall be the indicator of the design completed at that stage.
 Once the model is reviewed and client approval is obtained on the closure of
comments, then design for that stage shall be treated as Frozen. Subsequent
changes to previously reviewed and approved designs shall be strictly restricted and
controlled. Necessary change management system shall be enforced.

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5.0 30% MODEL REVIEW
The main focus of the 30% model review is on layout, accessibility, space allocation,
safety, ergonomics, operability, maintainability, constructability.
5.1 30% Review Stage Requirements
5.1.1 Following are required to reach 30% milestone completion:-
 Basic Engineering stage modelling basis
 Client’s Specific Design requirements (as applicable)
 Project Design Basis
 Initial concepts and studies
 Building design concepts (footprints, elevations)
 Tie-in locations (to external facilities)
 IFD P&ID
 IFD Line List & Tie-In list
 IFD PDS and/or MDS
 IFD Project Specifications
 IFD Piping Material Specifications
 IFD Plot Plan and Equipment Layouts
 Piping Support Standards
 Insulation Specification
(Insulation thicknesses for piping and equipment)
 Preliminary or reference data for piping speciality items
 Preliminary or reference data for rotating equipments
 Preliminary or reference data for Vendor Package items
 Preliminary data for HVAC systems (fans, blowers, etc.)
 Main E/I cable trays sizing
 Ductwork philosophy
 Space management philosophy
 Fire protection and fire fighting systems philosophy
 Underground philosophy
(Piping, cable routing, duct banks, drainage, road crossing, piling, trenching, depths)
5.1.2 The model shall be clash checked and major clashes shall be resolved prior to formal
review. At 30% review stage, lot of data is not available. Therefore, it is not mandatory
to resolve each and every clash.

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5.2 Modelling & Review
5.2.1 Following shall be modelled and subsequently reviewed for 30% milestone:-
 All equipments
 Equipment arrangement and relative positions and elevations shall satisfy governing
process criteria
 Support arrangement, nozzles locations and platforms shall be reviewed
 Space allocation for data not available
(Equipments, vendor packages, etc)
 Envisaged space envelopes for:
 Electrical & instrument facilities such as E/I main cable trays, Remote I/O Panel and
Field Junction Boxes, Electrical rooms, Analyser house
 Envelopes for door opening, equipment removal, etc.
 Fire pump house
 HVAC equipment, ventilation, ducts, etc.
 Space management and space allocation for:
 Constructability  Operability  Maintenance  Logistics
 Pull out spaces  Removal spaces  Lay down area  Loading / unloading bays
 Cranes, Monorails, hoists, beams
 Escape routes  Access ways  Man ways
 Vehicles and forklifts movement
 Material handling requirements
 Fire Engine Access
 Set back envelop from plant boundaries as per local authority guidelines
 All lines as per prior agreement with Client (without supports)
 Space and feasibility for supporting shall be confirmed
 Process critical lines (as per specific process & instrumentation requirements)
 Removal space for valves, speciality items, inline & online instrumentation
 Utility stations and Safety Showers w/eye wash
 All underground facilities
(Piping, sewers, drains, trenches, electrical duct banks, etc.)
 Main floor slabs
 Main equipment platforms
 Main pipe racks, sub-racks, sleepers
 Roads, paving, bund areas
 Piling (up to 5 meters)
 Main structural framing and foundations, including stairways, ladders, walkways
 Drainage system showing drain width and invert levels (Preliminary)

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 Architectural (shell basic, external modelling only)
 Buildings: Administration & Maintenance, Chemical Storage, Central Control Room,
Substations, Cleaning Area, Fire Pump House, Air Compressor Unit, etc.
 External roads, driveway, road marking, turfing area, gravel area, pedestrian walkway,
fencing & gate
 Exterior masonry & Interior partition walls, louvers panels, concrete stair, roof elements
5.3 Outcome & Objectives
5.3.1 Following should be frozen:-
 Coordinates for the plant, units, buildings, shelters, pipe racks, sleepers
 Equipments location and elevation
 All main platforms, stairways, ladders, walkways, escape routes
 Lay down and maintenance spaces
 Equipment layouts IFD
 No major changes are expected in the equipment layouts for the next stage
 All disciplines shall proceed with further detail design based on Equipment Layouts
5.3.2 Equipments once frozen during the formal model review shall be colour coded as per
agreed colour codes.
5.3.3 Preliminary study on nozzle orientation and support cleats (as input for equipment RFQ)
5.3.4 Preliminary stress analysis of agreed lines
(Confirm routing, location of equipments and load data to civil)
5.3.5 Preliminary bulk MTO for RFQ. The main aim is the MTO for special materials and in
general all long lead items
(Includes piping, structural steelwork, gratings, concrete, etc)
5.3.6 Preliminary design calculations for the main structures, foundations, pipe racks and
sleepers
5.3.7 Verification of civil and structural modelling with respect to preliminary design of beam
sizes and bracing locations
5.3.8 Verification of size and loading data of equipments (for civil / structural design)
5.3.9 Piling design and piling layouts
5.3.10 Architectural layouts
5.3.11 Fire protection and fire fighting system design, layouts
5.3.12 Main E/I cable routings

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The main focus of the 60% model review is to establish the progress of the detail design
as per latest information
6.1.1 The outcome and conclusions of the 30% model review are the basis for further
proceeding with the detail engineering and also progress upon the 3D model.
6.1.2 All comments of 30% model review have to be resolved and closed out in order to
proceed with the next stage.
6.1.3 Further, the following are required to reach 60% milestone completion:-
 Latest revision of P&ID and Line List
 Equipment, package items vendor drawings
 Piping stress analysis
 Special pipe supports sizes calculations
 IFD Instrument hook-up details
 Instrument Data (especially for all Inline Instruments) from Client approved Vendor
Catalogues
 Speciality items vendor data
 E/I Main and branch cable tray sizes, tubing tray and conduit spaces
 Vendor data and location of RIO Cabinets, Field Junction Boxes, Field local panels,
light fittings, etc.
 Instrument air manifolds and heat tracing systems manifolds typical calculations and
sizing for distribution
 Civil and structural design and calculations done using vendor data
 Updates on buildings and structures (footprints, coordinates, elevations)
6.1.4 The model shall be clash checked and made clash free before the formal review

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6.2.1 All aspects of modelling and reviewing at 30% milestone (as in section 5.2) are also
generally applicable to 60% milestone.
6.2.2 The 3D model at this milestone shall have progressed much further. Therefore, the
review shall be extensive. All additional modelling done after the 30% milestone shall be
reviewed.
6.2.3 Following shall be modelled and subsequently reviewed for 60% milestone:
 In general, all modelling done so far shall be rechecked and updated with respect to
latest available information
 Equipments (as per latest available vendor drawings)
 Most of the lines (80% to 90%)
 Piping supports including secondary supports
 It shall be ensured that under no circumstances is any piping support taken from
monorails and crane beams.
 Valves and speciality items accessibility check
 All Operational platforms and cat ladders
 Lay down area for equipments with removable internals
(Exchanger tubes, column trays and packing, etc)
 Movement of mobile / portable equipments
 Maintenance beams, monorails, hoists, davits
 Travel path of crane / hoist hooks taking into account the size of item being handled
 Civil and structural modelling shall have proceeded with more details
(Hand rails, bracings, fencing, etc)
 Secondary structures
 Drainage system showing drain width and invert levels
 Fire proofing, wherever applicable
 All Inline instruments
 Valves (Emergency Isolation, Control, On/Off, Butterfly, Safety), Rupture Disc, Mass
Flow Meter, Mag Flow Meter, Vortex Flow Meters, Orifice, Venturi, Thermowell, etc
 All Offline Instruments
 Electronic Transmitters, Level Instruments, etc
 Instrument location, accessibility review
 Instrument junction boxes
 Instrument air and heat tracing systems manifolds
 Lighting fixtures
 Field panels

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 E/I branch cable trays
 Branch Trays of 150 mm and 100 mm shall be modelled. 75 mm and below sizes shall
be site routed and will not be modelled.
 Branch conduits (if any) shall not be modelled.
 Spaces (envelope) for conduits (≥ Ø50 mm) and tubing trays (≥100 mm width)
 Ductwork in process areas in more detail with the inline / online components
 Fire fighting system
(Sprinkler head locations, hydrants, monitors, foam tanks, deluge outlets locations, sprinkler
and deluge pipe routing, valve manifold locations)
 Architectural updates of buildings, walls, doors and windows (as applicable)
6.3.1 IFC Equipment Layouts
6.3.2 IFD Piping layouts
6.3.3 Piping MTO
6.3.4 Stress analysis of majority lines completed.
6.3.5 Main pipe supports completed
6.3.6 Special pipe supports completed
6.3.7 Detailing of Structural design Completion
6.3.8 IFC Civil and structural layouts
 Shall Include secondary beams, staircases, handrails, equipment support beams, main
structural framing sizes, roads & pavements layout, drainage system, location of main
pipe supports, crane beams, monorails, hoists, Floor openings, etc
6.3.9 The civil and structural design, including equipment foundations confirmed for all the
equipment loads and ready for permitting submission to authority
6.3.10 Structural steel MTO
6.3.11 Drainage Layout
6.3.12 Instrumentation location plans, lighting layouts, cable tray layouts & field panel locations
6.3.13 Fire protection Layouts

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The main focus of the 90% model review is to close-out all the action points from
previous reviews, complete the modelling of all disciplines in all respects and
subsequently issue all final IFC drawings and documents
7.1.1 Following are required to reach 90% milestone completion:-
 All Input documents IFC Status
 P&ID, Line List, etc.
 Approved equipment and package vendor drawings
 Approved vendor drawings of all modelled items (all disciplines)
 Approved Instrument vendor drawings
 Approved Vendor drawings for speciality items, safety showers, etc.
 Structural steel design and modelling completed.
 IFC Civil and structural drawings
 Stress analysis completed.
 Main piping supports modelled as per designed information.
 Fire Protection, fire proofing ( as applicable), escape ways (including associated
stairs and ladders), hand rails, drains etc are designed/ approved in-line with
Authorities requirements
7.1.2 The model shall be clash checked and made clash free before the formal review

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7.2.1 Following shall be modelled and subsequently reviewed for 90% milestone:
 In general, all modelling done so far shall be rechecked and updated with respect to
latest available information
 Final review of Operability, maintainability and constructability
 Escape ways, stairs, ladders, operation platforms reviewed as final
 All discipline items modelled as per dimensions given in approved vendor drawings
 All piping including small bore
 (Except tubing. Envelopes provided for tubing and trays including insulation / lagging)
 All piping supports
 (Including Springs, snubbers, rod hangers)
 Safety shower and eye wash as per vendor drawing.
 All drawings and documents shall be ready for IFC issue.
 Floor and wall openings
 All supports
 (trays, ducts, fire protection pipe work and all secondary pipe supports)
 All equipment handling equipments such as hoists, monorails, EOT cranes, beams,
etc are reviewed using final vendor drawings and weights for maintenance
requirements
 Building internal facility modelling, if required

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7.3.1 This is the final formal review of the 3D model. Any subsequent reviews will be specific
and pertaining only to the closeout of the comments.
7.3.2 IFC Isometrics
 Refer to Isometrics Flowchart WI-LL-24f3 in Section 9.0 of this Work Instruction.
7.3.3 All pipe support drawings
7.3.4 IFC Piping layouts
7.3.5 Final issue of equipment layouts, plant layouts, overall plot plan
7.3.6 Final MTO
7.3.7 IFC Main pipe support drawings
7.3.8 Structural steel layouts, elevations of all pipe racks, process structures, equipment
support structures, platforms, ladders, stairs, gratings, floor plates, etc. issued
7.3.9 All other miscellaneous civil fabrication drawings and details done.
7.3.10 Floor opening and wall penetration drawings and details shall be completed.
7.3.11 Tray layouts IFC
7.3.12 Lighting layouts IFC
7.3.13 Instrument location plans IFC
7.3.14 Duct layouts IFC
7.3.15 Fire protection system – layouts, sprinkler heads, deluge outlets & their piping layouts
IFC

Document No:
SING-WI-LL-24
Page :
18 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
8.0 MILESTONES SCOPE MATRIX
8.1 Piping and Mechanical:
Modelling Scope
1st
Client
Review
2
nd
Client
Review
Final
Review
Remarks / Comments
30% 60% 90%
Piping Modelling
 Number of lines and pipe sizes as
agreed with Client for each milestone
X X X Only Preliminary Routing @ 30%
All Underground Piping X X
Equipments X X X
Safety Showers X X
Utility Stations X X
Sample points X
In-Line Piping Components X X
In-Line Instrumentation & Speciality X X
Critical Lines Identified For Stress
Analysis
X
Critical Lines Compliance to Stress
Requirements
X
Pipe Racks & Sub-Racks X X Location Only
Primary Pipe Supports X Detailed By Stress Engineer
Secondary Pipe Supports X X
Note: Ensure that under no circumstances is any piping support taken from monorails and crane beams
Equipment Supports X X Location Only
Withdrawal Spaces X
Maintenance Space X X
Escape routes X X
Pull out space and lay down area X X
Davits and Equipment Manholes X X
Lifting Lugs X X
Vendor Packages, Modules, & Skid Units X X
Future Equipment X
Inline and Offline Instruments X X
Insulation for Pipes X X X
Floor Drainage and associated pipe work
above ground
X X
Runway & Lifting Modelling Volume X X

Document No:
SING-WI-LL-24
Page :
19 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
8.2 Building Services:
Modelling Scope
1st
Client
Review
2
nd
Client
Review
Final
Review
Remarks / Comments
30% 60% 90%
BS Piping X X
BS Equipment X X X
Fire protection and fire fighting system X X X
In-Line Piping Components X
In-Line Instrumentation & Speciality X
Plumbing Services – only for underground X X
Fire Protection Piping (underground) X
Fire Protection Piping (aboveground) X
Critical Lines Identified For Stress
Analysis
X
Critical Lines Compliance to Stress
Requirements
X
Primary BS Pipe Supports X
Secondary BS Pipe Supports X X
BS Equipment Supports X X
Extract Fans & Fan Filter Heaters X
Ventilation Ductwork & Insulation X
Ductwork In-line Components X
Ductwork In-line Instrumentation X
Dedicated Extract Systems X
Main Ductwork Support Steels X
Major Ducting X
Dampers X
Fans, withdrawal space X X
Low Wall exhaust Grilles X X X
Sprinkler Headers, Deluge lines X
Sprinkler Lines X
Piping X
 Modelled by Piping based on inputs provided by Building Services

Document No:
SING-WI-LL-24
Page :
20 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
8.3 Civil and Structural:
Modelling Scope
1st
Client
Review
2
nd
Client
Review
Final
Review
Remarks / Comments
30% 60% 90%
Primary Steelwork X X X
Connection details X X
Critical Insert-plate details X X
Modular Pipe Racks X X X
Typical Details X X X
Hand railing X X
Cat Ladders X X
Checker Plate & Grating X X
Steel Staircases X X
Stair Towers X X
Purlins & Side Rails X X
Vessel Supports X X
Critical Pipe Supports X X
Concrete Floor Slabs X X
Concrete Floor Penetrations X
Floor Sumps X X
Mezzanine Concrete Floors X X
Concrete Walls X X
Concrete Wall Penetrations X
Retaining Walls X X
Bund Area’s X X X
Foundations X X X
Concrete Up-stands & Plinths X
Pits & Trenches X X
Underground Drainage X X X
Columns & Beams X X X
Trimmers X
Runway and lifting beams / lifting eye X X
Pipe Rack & Structural Pipe Supports X X X
Preliminary walk-on ceiling (extent) X X
Secondary Supports X X

Document No:
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Page :
21 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
Modelling Scope
1st
Client
Review
2
nd
Client
Review
Final
Review
Remarks / Comments
30% 60% 90%
Concrete Floors X X X
Lift Pits X
Pre-Cast Core Walls X
Equipment Base Grout X X
Anchor Bolt Setting X X

Document No:
SING-WI-LL-24
Page :
22 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
8.4 Architectural:
Note: Architectural details will be modelled only when the building internal areas are to be
modelled. They will not be modelled, if only building shell has to be modelled as envelope
Modelling Scope
1st
Client
Review
2
nd
Client
Review
Final
Review
Remarks / Comments
30% 60% 90%
Exterior Masonry Walls X
Exterior Masonry Wall Opes X
Interior Partition Walls X X
Interior Partition Walls Opes X X
Exterior Cladding X
Louver Panels X X
Suspended Ceilings X
Doors X
Windows & Screens X
Concrete Stairs X X
Elevator Shaft X
Roof Elements X X
External Rain water Pipes X
Sanitary Fittings X
Laboratory Furniture & Fittings X
Office Furniture & Fittings X
Internal Walls X
External Walls X
Finish Floor Penetrations X X
Windows, Vision Panels X
Clean room False Ceiling X
Doors, Vision Panels X
Laboratory Benches X
Lockers Area Furniture X

Document No:
SING-WI-LL-24
Page :
23 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
8.5 Electrical:
Modelling Scope
1st
Client
Review
2
nd
Client
Review
Final
Review
Remarks / Comments
30% 60% 90%
Main Cable Trays Routes (for power,
control & auxiliary systems)
X X
Branch Cable Tray Routes X X
Electrical MCC room Equipment (Dry type
transformer, Switchgear, MCC etc.)
X
Electrical Misc. Panels (various panels
outside electrical rooms
X X
Electrical junction box, local switches /
push button stations.
X X
Light Fittings X X
Underground trenches, duct banks X X
Supports For Main Cable Trays X By Civil and Structural
Support For Branch/Cable Trays X X By Civil and Structural
Supports for Junction Boxes, local
switches, push buttons, electrical panels
outside electrical rooms
X X By Civil and Structural (for
electrical panels only)

Document No:
SING-WI-LL-24
Page :
24 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
8.6 Instrumentation:
Modelling Scope
1st
Client
Review
2
nd
Client
Review
Final
Review
Remarks / Comments
30% 60% 90%
Instrumentation Junction Boxes X X X
Remote I/O Panels X X X
Main Instrumentation Cable Tray Layout X X X
PAT Cabinet Location X X
PAT Container Location X X X
Local Control Panel/PLC Panel Location X X X
Instrument Air manifold Location X X
Offline instruments X X Offline instruments on pipe lines
are modelled by piping
Branch cable trays (≥100mm width) X X
Instruments Drain connection to common
Drain Funnel as shown in the P&ID &
Instrument Hook-ups
X X (By piping, if line number is given
to the drain line)

Document No:
SING-WI-LL-24
Page :
25 of 25
Supersedes:
Nil
Revision: 0
Issue Date:
04 January 2010
Issuing Department:
Piping Department
Nil
Effective Date:
04 January 2010
9.0 RELATED DOCUMENTATION (REFERENCES)
WI-LL-24f1 : Model Review and Comments Recording Spreadsheet
WI-LL-24f1.XLS
WI-LL-24f2 : 3D Workflow Diagram
WI-LL-24f2.dwg
WI-LL-24f3 : Isometric Flowchart
WI-LL-24f3.xls
WI-LL-24f4 : Weekly Action Log
WI-LL-24f4.xls
Double Click on Icons to display the document
10.0 RECORDS
The weekly / daily review action logs, the line wise review & comments recorded on the
Line List and the Model Review and Comments Recording Spreadsheets shall be
preserved as part of the project documentation.

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