Process Analyzer

COMPLETE REVISIONAugust 2006 Process Industry Practices Process Control PIP PCEPA002 Process Analyzer Project Implementation Guidelines contractors. All Practices or guidelines are intended to be consistent with applicable laws and regulations including OSHA requirements. The University of Texas at Austin. Other brands having the same specifications are equally correct and may be substituted for those named. To the extent these Practices or guidelines should conflict with OSHA or other applicable laws or regulations. or standards organizations. PIP member companies and subscribers may copy this Practice for their internal use. Construction Industry Institute. or modifications of any kind are not permitted within any PIP Practice without the express written authorization of PIP.PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES In an effort to minimize the cost of process industry facilities. Changes. application. By harmonizing these technical requirements into a single set of Practices. administrative. 3925 West Braker Lane (R4500). Determinations concerning fitness for purpose and particular matters or application of the Practice to particular project or engineering situations should not be made solely on information contained in these materials. The use of trade names from time to time should not be viewed as an expression of preference but rather recognized as normal usage in the trade. this Practice has been prepared from the technical requirements in the existing standards of major industrial users. © Process Industry Practices (PIP). such laws or regulations must be followed. overlays. Texas 78759. While this Practice is expected to incorporate the majority of requirements of most users. PRINTING HISTORY August 2000 August 2006 Issued Complete Revision Not printed with State funds . individual applications may involve requirements that will be appended to and take precedence over this Practice. and engineering costs to both the purchaser and the manufacturer should be reduced. Austin. This Practice is subject to revision at any time. Consult an appropriate professional before applying or acting on any material contained in or suggested by the Practice. addenda. .............. 4 Production Design...... General References ........... 12 Process Industry Practices Page 1 of 13 ................................2 Scope .. Project Scheduling ....... 4 4... 11 Project Completion.................. 2 1...................1 Purpose ..............3 Information Resources .2 4.................7 Conceptual Design............................. Tasks and Deliverables .......... 6 Detailed Design.....2 Industry Codes and Standards .4 4...........1 4....... General ...................... 5 Implementation ..3 4........5 4............ Introduction......... 3 4....... 2 1....... 2 2....................... 2 2..............6 4............................................ 8 Installation ............... 3 3..... 12 5.1 Process Industry Practices ........... 2 2.................................................... 2 2. 11 Commissioning/Start-up/Turnover .........COMPLETE REVISION August 2006 Process Industry Practices Process Control PIP PCEPA002 Process Analyzer Project Implementation Guidelines Table of Contents 1............ However.2 Scope This Practice describes the guidelines for implementation of process analyzer systems.PIP PCEPA002 Process Analyzer Project Implementation Guidelines COMPLETE REVISION August 2006 1. 2. and installation of process analyzer systems for major capital projects.Process Analyzer Shelter Data Sheet Instructions – PIP PCSPA03D .Process Analyzer Project Documentation Data Sheet Instructions – PIP PCSPA01D . 2. the tasks defined under the Task s and Deliverables for participating organizations may change. integration.Process Analyzer Bid Proposal Data Sheet – PIP PCIPA001 .Process Analyzer System Design Criteria – PIP PCEPA001 . depending upon the scope of a given project and the organizational structure defined for that project.Process Analyzer System Engineering Guidelines – PIP PCSPA001 . The successful implementation of a process analyzer project requires the knowledge.Process Analyzer Bid Proposal Data Sheet Instructions – PIP PCSPA04D . and management of multi-disciplinary engineering skills and resources that may bridge several different organizations.Flammable and Combustibles Liquids Code Page 2 of 13 Process Industry Practices . The detailed information on “Tasks and Deliverables” provided in this Practice assumes a typical project. and references shall be considered an integral part of this Practice.1 Purpose This Practice provides guidelines for the design.Process Analyzer System Acceptance Testing 2.Process Analyzer System Data Sheet – PIP PCSPA003 . The edition in effect on the date of contract award shall be used. This Practice should be used to assist in assessment and definition of roles and responsibilities for those tasks required for a given project. specification. industry codes and standards. purchasing.Process Analyzer System Data Sheet Instructions – PIP PCSPA02D . General References Applicable parts of the following Practices.1 Process Industry Practices (PIP) – PIP PCCPA001 .Process Analyzer Shelter Data Sheet – PIP PCSPA004 .Process Analyzer System Field Installation – PIP PCTPA001 . Short titles will be used herein where appropriate.Process Analyzer Project Documentation Data Sheet – PIP PCSPA002 .2 Industry Codes and Standards • National Fire Protection Association (NFPA) – NFPA 30 . Introduction 1. except as otherwise noted. 1. Analyzer Systems Vendor (ASV) d. Radnor..J.. Principles of Sample Handling and Sample System Design for Process Analysis. Instrument Society of America. Process Analyzer Technology. Installation f. Conceptual design b. In addition to minimizing the overall cost of the Process Industry Practices Page 3 of 13 . E. – Lipták. NC.3 Successful implementation of a project requires continuity of personnel throughout the execution period of a project. Production design c. New York. 2002.Latest Edition – NFPA 496 ... NY. R. General 3. Research Triangle Park. Owner Company personnel. 3. B.1 The implementation of process analyzers on a major capital project can require the participation of only one or several of the following resource groups: a. Research Triangle Park. Jepson. PA.. Engineering and Construction Electrical and Instruments (E&I) engineering section (E&C) contractor c. – Sherman. – Sherman. NY. Chilton Book Co. Smurthwaite.Recommended Practice for the Flammable Liquids. A typical capital project includes. Buttersworth. D. the following stages: a.2 How these different organizations interact to produce a successful analyzer project can vary depending upon the expertise of each group and the stage of the project. London. R. – Cornish.National Electrical Code . Instrument Society of America. M. John Wiley & Sons. Analyzer Original Equipment Manufacturer (OEM) 3. Project completion 3. Commissioning/startup/turnover g. – Houser.G. K. Process Analyzer Sample-Conditioning System Technology. E. Sampling Systems for Process Analyzers. Implementation d. Analytical Instrumentation Practices Guide for Measurement and Control. b. Detail design e. Instrumentation in the Processing Industries. NC.A. C.Standards for Purged and Pressurized Enclosures for Electrical Equipment – NFPA 497 . Gases.. but may not be limited to... Wiley Interscience.COMPLETE REVISION August 2006 PIP PCEPA002 Process Analyzer Project Implementation Guidelines – NFPA 70 .E. England..3 Information Resources – Clevett.J. or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas 2. G. 4.1. lead.6.” However.6 Specify acceptable analytical technologies and vendors. approval. 4. 4. including process analyzer resources at this stage of process development and design is critical.4 Develop analysis systems design concepts.1. Tasks and Deliverables A brief explanation of the analyzer project activity associated with each of the project stages is defined in this section.1. A matrix can be prepared in a spreadsheet or word-processing format to show the tasks required at each stage in the project.1 4.1 Conceptual Design 4.1. 4.1.3 4.PIP PCEPA002 Process Analyzer Project Implementation Guidelines COMPLETE REVISION August 2006 project.6.6. analyzer OEM. If a production-scale pilot plant facility is included in this stage. Specific analyzer-related tasks and deliverables for each design stage are further detailed for each of the participating organizations. is used to generate process flow diagrams (PFDs). Owner Company 4.9 Define project Tasks and Deliverables.1.1.6. which may follow piloting activity.1.1. all efforts should be taken to align resources and minimize duplication of effort.6 Page 4 of 13 Process Industry Practices .5 The conceptual design phase.6. the definition of process analyzer needs is often limited to a conceptual “like to have” or “must have.2 Define preliminary analysis requirements.1. and evaluate process specific on-line analysis techniques for perceived analysis needs before implementation. 4.e. the services of an E&C contractor may also be required. 4.6.1.1.1. test.6. 4. This may be the only opportunity to develop. along with each party’s agreed role (i.6. review. 4.1.. 4. This activity normally includes the participation of the Owner Company R&D and Engineering organizations.4 4.6. and information only).7 Develop acceptable vendor lists for ASV.5 Initiate preparation of PIP PCSPA02D utilizing PIP PCSPA002. At this stage of a project.1.8 Develop preliminary of P&IDs (study drawings). Piping and instrument drawings (P&IDs) may be started during this stage of a project.2 4.3 Develop methods for Owner Company proprietary analytical technology. and system components. 4.1 Develop PFDs. 4. process operating conditions. An E&C contractor typically completes the detailed design of a production facility. 4. Type II . d. Type I .g. Process Industry Practices Page 5 of 13 .2.5.5.2.3 4.2 4.2.2.2.3 4. and heating requirements. 4. the plant layout or general arrangement is defined. 4.5.2. are defined during this stage.5. maintenance data highways. 4.freely ventilated. On-line process analyzer requirements.5.10 Recommend shelter type: a.2.13 Recommend maintenance support peripherals (e. including sample tap locations. b.6 E&C Contractor Tasks and Deliverables 4.2.2. Recommend sample line materials of construction. etc. in conjunction with designated representatives of Owner Company.2 4. c. The tasks outlined in the following sections are completed during this stage of the project. 4.11 Update PIP PCSPA02D utilizing PIP PCSPA002.climate controlled.2.field mounted.5.2.9 Recommend sample point and sample return requirements.12 Produce PIP PCSPA03D utilizing PIP PCSPA003.5 4. These tasks may not be presented in a timeline sequence because the project participants often complete them in parallel.1 Define electrical area classification for each analyzer location. Provide laboratory sample station requirements. Recommend analyzer calibration/validation method.2.5.1 During the production phase of a project.5.5.COMPLETE REVISION August 2006 PIP PCEPA002 Process Analyzer Project Implementation Guidelines 4.8 4. and specific analysis requirements.2. Recommend acceptable materials of construction for processwetted sample-handling components.2.2. cylinder racks.). Type III .2. Type IV . insulation.2.5.5.2. Owner Company Tasks and Deliverables 4. List available support utilities.6 4.controlled for area classification reduction.4 4.2 Production Design 4.5.5 4.4 4. Recommend alarm and signal requirements. 4. walkways. apron around shelter.2.1 4.6. Provide typical flow diagrams for sample system.2.7 4.. Recommend analyzer system host computer interface. and P&IDs are developed and completed.14 Prepare preliminary process analyzer budgetary cost estimate based on data available and defined design requirements.2. PFDs are further refined.5.5. 4.6. 4. inerting operations. 4. and valve sequencing.4 Page 6 of 13 Process Industry Practices .11Identify all relevant local and industry standards and certification requirements.6. and specifications prepared by E&C contractor.3.3.5 Owner and/or E&C Contractor Tasks and Deliverables 4. 4. sample systems.2. Include physical orientation (vertical vs.3 Implementation 4. 4.2 4.3.3.6. These tasks may not be presented in a timeline sequence because the project participants often complete them in parallel.4.2. 4. calibration. 4. 4. 4.3. 4.2.2. the Owner Company and/or the E&C contractor typically assumes the responsibility for developing the analyzer system installation information.2 Review and approve ASV bid package.3.PIP PCEPA002 Process Analyzer Project Implementation Guidelines COMPLETE REVISION August 2006 4.7 Locate and identify laboratory sample stations on P&IDs.2. 4.5.2. Depending upon the roles and responsibilities that have been defined for a given project.2. and utility support requirements for each analyzer system installation. 4.7 ASV Tasks and Deliverables Provide budgetary quotations. Owner CompanyTasks and Deliverables 4.3 4. 4. drawings.10Locate process analyzer shelter(s) on plot plan or model.6.2 Incorporate maintenance support peripherals.3.2. 4.8 Analyzer OEM Tasks and Deliverables Provide budgetary quotations.2.8 Update PIP PCSPA02D utilizing PIP PCSPA002.4. The tasks outlined in the following sections are completed during this stage of the project. and host computer.6.6.2.6.3. flushing.6 Prepare flow diagrams for sample systems.5 Complete drawing representation or written functional description of host computer interface and control functions for any automated sampling. 4. sample conditioning.2.9 Update PIP PCSPA03D utilizing PIP PCSPA003.1 Provide physical location information for all analyzer sample taps and sample return points.6.4 Complete P&ID representation of alarm and signal requirements between analyzers.6.6.2.1 The basic data for the process analysis requirements that are developed during the conceptual and production design stages are used during implementation to define sample transport.1 Review ASV bid package.3 Locate sample point and sample return points on P&IDs. Process Industry Practices Page 7 of 13 . pumped vs. 4.6.4 Complete PIP PCSPA02D.5.6.5.3.3. manual calibration and validation 4.8 Prepare and complete PIP PCSPA01D. analyzer enclosures. Fast loop and analyzer flow requirements. and installation of the analyzer systems.5. Auto vs.3 Complete and submit bid proposal for process analyzer package in accordance with PIP PCSPA04D. 4.5.3. and cylinder racks to assure maintenance accessibility and tie-in to field piping and utility support.3.3. 4. analog/digital. and fiber optic signals for host computer and process field wiring. nozzle orientation: top vs. Mounting and installation considerations 4. or approved supplier lists that will impact the design. 4.5. codes.3.3. Auto vs.12 Participate together in ASV bid evaluation.3. 4.11 Prepare lower sections of PIP PCSPA04D utilizing PIP PCSPA004.2 Locate and orient all field-mounted analyzers.2 Design fabrication details for sample-handling system: a.3. pre-conditioning assemblies.7 Prepare Overview Document to describe the project scope. 4. 4. aspirated sample transport c. Single vs. start-up. etc. including those listed in the References. 4.5.6. manual stream switching e.5. and commissioning requirements. 4. 4. multi-point b.3. 4.1 Design functional details for sample-handling system: a.5.3.13 Place order to ASV for process analyzer project. 4.10 Prepare bid specification for analyzer system project. 4.9 Define ASV and analyzer OEM installation.5.6 Compile all applicable standards. Differential pressure vs.5.6 E&C Contractor and/or ASV Tasks and Deliverables 4.3.3.3.5. 4.3.COMPLETE REVISION August 2006 PIP PCEPA002 Process Analyzer Project Implementation Guidelines horizontal pipe run. Layout b.3. side of pipe.7 Analyzer OEM(s) Tasks and Deliverables Complete applications assessment or development for unique analysis requirements.5.3. d.5 Complete PIP PCSPA03D utilizing PIP PCSPA003. analyzer shelter. fabrication.3 Define interconnection requirements for power.) and accommodate maintenance accessibility. and documents that require interfaces/interconnections to process equipment or services as required to ensure that systems supplied by Owner Company or ASV will meet all site design and installation criteria. etc. 4.PIP PCEPA002 Process Analyzer Project Implementation Guidelines COMPLETE REVISION August 2006 4.4 4.4.5.4. etc. 4. utilities support. design and provide foundation and structural supports required for analyzer shelters. the systems are inspected and subjected to acceptance tests by owner and E&C contractor. for the analyzer project.5. drawings. These tasks may not be presented in a timeline sequence because the project participants often complete them in parallel.7 Define maintenance and support training requirements.4.1 The data developed during conceptual design.5. Drawings c. Owner and/or E&C Contractor Tasks and Deliverables 4.. 4.4.3 4. drawings.4.4.2 4. Following approvals by both the owner and E&C contractor.5 Page 8 of 13 Process Industry Practices . 4.1 Purchase analytical instruments and/or obtain proprietary in-house instruments.5. 4.10 Review and approve all specifications.4.5. Acceptance test procedures d. the systems are released for fabrication.4 Participate in Analyzer OEM acceptance tests of process analyzers.5.5 Approve all documentation including: a. Instruments may be drop-shipped to ASV or others for modifications as required to meet installation electrical area classification.2 Conduct analyzer systems safety review before final approval for fabrication.6 Participate in Factory Acceptance Tests (FAT) of fabricated analyzer systems.4.5.3 In conjunction with ASV.4.4 Detailed Design 4. Inspections 4. The tasks outlined in the following sections are completed during this stage of the project.5.4. and sample system integration.5. Specifications b. all local electrical codes. 4. HVAC cylinder racks. production design.5.4.4.4. and implementation stages of the project are transmitted to an ASV and/or an analyzer OEM for development and production of design documentation for each analyzer system and installation design details. Upon completion of fabrication.4. 4.8 Use Document Control for tracking all manuals. 4. 4.9 Supply ASV with a block of instrument loop numbers for identifying instruments on analyzer system P&IDs and other drawings as required.4. Prepare written specifications for all major equipment and system components that are not being purchased by owner and/or E&C contractor (e.11 Design and provide to the ASV all sample and sample return line routings and lengths. 2.4. and any other related project requirements.4. 4. purchase. Layout f.13 Design signal and alarm cabling and routings. Sample probes i. and support needs for the fresh air intake stack. 4.S. HVAC b. 4. process headers.. etc. installation criteria. Location e. drains.g.-purchased equipment.4.16 Owner shall supply certificates of manufacture written in the destination language and authenticated by the local embassy. Provide shelter pressurization and airflow calculations required to purge for toxic gas.5. 4.4.4. consulate. electrical area classification.14 Design and provide utility support requirements as defined by Owner Company and/or the ASV. Process Industry Practices Page 9 of 13 . distance. Other supplied accessories in accordance with bid specification. 4. Design. combustible gas.1 Analyzer Shelter 1.6.5. HVAC system).4.6 ASV Tasks and Deliverables 4. and fabricate analyzer shelter(s) including a.12 For Type III and Type IV shelters. Sample systems j.5.5. Pre-conditioning assemblies k.4. 4.COMPLETE REVISION August 2006 PIP PCEPA002 Process Analyzer Project Implementation Guidelines 4. Design sample return interface including sample recovery systems. or asphyxiant gas leaks into the interior of the shelter. or commercial attachés for countries outside the European Community. Sizing g.5. Orientation c.5. Mounting and orientation of analyzers h. The owner should be responsible for U. 3.15 Complete PIP PCSPA01D utilizing PIP PCSPA001.4. design and provide to the ASV the routing. 4. vents. 5. Design for all utility requirements including load and consumption calculations. Utility connections d. 4. c. Provide preliminary system test results to owner and E&C contractor. and control. Design for all cabling requirements. Fabricate all process analyzers systems.g.7.2 Provide all information. Identify any consumable or limited shelf-life items that may require special shipping requirements (e. 7. and personnel to conduct the Factory Acceptance Tests. 4.4.4.4. test equipment. 5. b. 8.7. Provide required certifications.2 Analyzer Systems 1. 4. pressure. and racks. documentation.7 Analyzer OEM Tasks and Deliverables 4. shelters. 8. 7..1 Provide the process analyzers as defined by the owner and E&C contractor or the ASV in accordance with PIP PCSPA02D. 9. Design and provide calculations for sample line size in accordance with sample loop residence and analyzer response time requirements. including calibration gases and standard generators. 9. Calibration and validation systems with standards as defined on the data sheets. Ensure that sample system design includes the following: a. and racks. Provide all material. If required. Provide a list of start-up and commissioning spares and a list of spare parts for 2-year operation. 6. 3. pH electrodes). Prepare and provide detailed documentation for the installation by the E&C contractor for all analyzer systems shelters and ancillary equipment. flow indication. Page 10 of 13 Process Industry Practices . 2. 4. Suitable materials of construction to meet process tap and return conditions.4. software. provide preliminary drawings for outline and mounting dimensions and interconnections. Temperature.6.PIP PCEPA002 Process Analyzer Project Implementation Guidelines COMPLETE REVISION August 2006 6. and ancillary equipment as required for a fully operational and functional analyzer. shelters. Prepare and issue all drawings in accordance with PIP PCSPA01D utilizing PIP PCSPA001. Purchase all analyzers not included in owner alliance agreements and associated hardware required to fabricate and mount all analyzer sample system enclosures. Host and conduct Factory Acceptance Tests for all process analyzers and associated hardware purchased by the ASV. 6. 4.2 Install concrete foundations 4.4 Install analyzer systems.6 Connect all interface points (e. shelters. This may also include providing supervision for termination of field power.6 Commissioning/Start-up/Turnover 4. 4.COMPLETE REVISION August 2006 PIP PCEPA002 Process Analyzer Project Implementation Guidelines 4.7.2 Prepare data books and training program for the operation.4.7. Start-up is the demonstrated operation of the analyzer systems with actual process samples.1 May provide on-site supervision for off-loading and site installation of all analyzers.3. utilities. alarms.5.g.5. Owner and/or E&C Contractor Tasks and Deliverables 4. and instrumentation).5. 4. electrical. Provide copies of the data books as specified.3.1 Complete site preparation 4.1 4.3 Set major equipment 4.4. start-up.3. sample lines. and utility interconnection diagrams.4 ASV Tasks and Deliverables 4. 4.5. shutdown.5.5. and safety systems. shelters.5.. including sample lines 4. and analyzer system diagnostics of the process analyzer systems. including HVAC ductwork.5. purchase required materials for mounting and installing analyzer shelters and all field-mounted hardware.3 Provide dimensional outline.5.5.4. maintenance. 4.5. electrical. calibration.4 Provide all material and personnel to conduct the Analyzer OEM acceptance test. and calibration systems in their supply.2 The E&C contractor or a contractor designated by the owner normally handles the field installation of the analyzer systems.1 4.6. These tasks may not be presented in a timeline sequence because the project participants often complete them in parallel.3.3 Process Industry Practices Page 11 of 13 . 4.5 In accordance with ASV installation detail drawings.3. troubleshooting.4. connection of all utilities. or systems. 4. signal cabling. including sample lines and sample line heat trace termination kits. and mounting of all systems and ancillary equipment.3.2 Commissioning is the demonstrated operation of the analyzer systems and all associated hardware and software.5.5 Installation 4. The tasks outlined in the following sections are to be completed during this stage of the project. sample probes. piping. ” 4.6. and/or the Analyzer OEM are typically involved in ensuring the accuracy of the “as-builts. the E&C contractor. Project Scheduling Table 1 provides notional parameters for consideration in establishing a schedule for an analyzer systems project.6. and/or the Analyzer OEM. and a defined period of uninterrupted on-line operation.6. travel.7.1 Provide on-site test procedures and test documentation requirements.6.1 The installation.7 ASV Tasks and Deliverables 4. issue requisition to ASV and Analyzer OEM to perform on-site start-up.7 Project Completion 4. and expenses) and numbers of days required for training. and training. These tasks may not be presented in a timeline sequence because the project participants often complete them in parallel.2 If specified.1 Participate in site start-up and commissioning of all analyzers and ancillary equipment. ASV. commissioning.7.7. Table 1 – Analyzer Project Scheduling Elements Page 12 of 13 Process Industry Practices . ancillary equipment. and turnover typically involves resources from the owner. the ASV.6.6. 4. Commissioning.4 Provide on-site training program for owner personnel on operation and maintenance of the equipment. Updating these documents to reflect the “as-built” condition of the installed systems is essential for maintenance and support of these systems. The E&C contractor. analyzer shelter.2 Provide start-up and commissioning requirements that refer to all ASV provided equipment analyzers. 4.2 5.6.6. 4.6. start-up. and start-up of an analyzer system may require field modifications or changes that can require updates to the project design drawings and documentation. Owner and/or E&C Contractor Tasks and Deliverables 4. etc. turnover (or transfer of ownership) of the systems to the owner is completed.4 4.6.6.3 After successful commissioning. start-up. 4.PIP PCEPA002 Process Analyzer Project Implementation Guidelines COMPLETE REVISION August 2006 4.7. commissioning.5 4. 4. Proposal should include per diem rate (time. ASV should complete training program documentation before site installation and complete training classes on site before commissioning.7.7.6 4.3 Provide start-up system with process samples.6. 4.8 Analyzer OEM Tasks and Deliverables Provide on-site start-up assistance and training as required. 4. The tasks outlined in the following sections are completed during this stage of the project.6.6. 3–6 months.COMPLETE REVISION August 2006 PIP PCEPA002 Process Analyzer Project Implementation Guidelines Notional Time to Completion: Conceptual Design Production Design Implementation Analyzer pre-bid meeting(s) Issue request for bid Purchase order (PO) placement Owner. and ASV kickoff meeting Detail Design Preliminary drawing submittals First pass approval drawings Process analyzer system safety review Final approval drawing submittal Release for fabrication Analyzer OEM inspections ASV Factory Acceptance Tests Release for shipment Spare parts list Final data books Installation Field installation – completion date Commissioning/Start-up/Turnover On-site commissioning and training Plant start-up Turnover Upon installation completion 3-6 months after receipt on-site After plant start-up or 3–6 months after receipt on-site 1–3 months after receipt on site Maximum 30 working days after order placement Maximum 60 days after order placement Minimum 10 working days after receipt of approval drawings Minimum 10 working days after completion of safety review Upon final approval drawing sign-off As bid As bid After completion of Factory Acceptance Tests and punch list corrections 6 weeks before receipt of systems Maximum 10 workings days after receipt of systems 1–5 years. E&C contractor. Maximum 30 days before bid due date Minimum 10 working days before bid due date Minimum 10 working days after receipt of bids Maximum 10 working days after order placement Process Industry Practices Page 13 of 13 . 1–2 years.