Product Design Specification

Eng. Nabil Ahmed MouradEng. Nabil Ahmed Mourad

B.Sc. Cairo University Mechanical Engineering.B.Sc. Cairo University Mechanical Engineering.M.Sc. Arts Et Metier, France, Thermodynamics.M.Sc. Arts Et Metier, France, Thermodynamics.Abu Dhabi Company for Onshore Oil Operation.Abu Dhabi Company for Onshore Oil Operation.

Engineering Services Department.Engineering Services Department.

April 2001April 2001

Product SpecificationProduct Specification

Table of ContentTable of Content

• Types.Types.

• Structure.Structure.

• Forms.Forms.

• Typical Content of specification.Typical Content of specification.

• Preparation of specification.Preparation of specification.

• Continual improvement. Continual improvement.

Types of Specifications

International StandardsInternational StandardsIndustrial Standards.Industrial Standards.Company Specification.Company Specification.Project / product specific.Project / product specific.

Engineering Standards - StructureEngineering Standards - Structure

InternationalStandards

ProjectSpecification

ADCO EngineeringStandards

Industry

Progres

sive d

evelo

pment

Progres

sive d

evelo

pment

Order of Precedence

Order of Precedence

International StandardsInternational Standards

ISO DefinitionISO Definition

Document, established by consensus and approved Document, established by consensus and approved by recognized body, that provides. For common by recognized body, that provides. For common and repeated use, rules, guidelines or characteristic and repeated use, rules, guidelines or characteristic for activities or their results, aimed at the for activities or their results, aimed at the achievement of the optimum degree of order in achievement of the optimum degree of order in given context.given context.

International StandardsInternational Standards

ExamplesExamples

• British Standards.British Standards. BSBS

• American Petroleum Institute.American Petroleum Institute. APIAPI

• American Society for Mechanical Eng.American Society for Mechanical Eng. ASMEASME

• Dutch Industrial Norm.Dutch Industrial Norm. DINDIN

• International Standard OrganizationInternational Standard Organization ISOISO

Industry StandardsIndustry Standards

Document developed by a recognized Document developed by a recognized international industrial organization operating in international industrial organization operating in specific industry to formalizes polices and provide specific industry to formalizes polices and provide rules and guidance for the initiation, generation rules and guidance for the initiation, generation and maintenance of design and Engineering and maintenance of design and Engineering practices, learned over a period of time and practices, learned over a period of time and resulted from diversified application. resulted from diversified application.

Industry StandardsIndustry Standards

ExamplesExamples

• Shell Shell DEPDEP

• British Petroleum British Petroleum BPSBPS

• Mobil StandardsMobil Standards MSMS

• Exxon StandardsExxon Standards ESES

Local / Company StandardLocal / Company Standard

Document developed by an operating company to provide Document developed by an operating company to provide technical guidance and recommendations based on the technical guidance and recommendations based on the experience gained in the company, for specific operation, experience gained in the company, for specific operation, over a considerable period of time and in a specific over a considerable period of time and in a specific geographical location.geographical location.

ExamplesExamples

•Gulf standard for cars.Gulf standard for cars.

•Saudi Operation Specification.Saudi Operation Specification. SOSSOS

•Petroleum Development Oman.Petroleum Development Oman. PODPOD

Project / Product SpecificationProject / Product Specification

Document developed to define the technical Document developed to define the technical requirements that apply for specific project or requirements that apply for specific project or product.product.

ExamplesExamples•Abu Dhabi North East Oil developmentAbu Dhabi North East Oil development•Rolls-Roys Cars.Rolls-Roys Cars.•GE refrigerators.GE refrigerators.•Masafi bottled water.Masafi bottled water.

Forms of Specification.Forms of Specification.

Stand-alone specificationsStand-alone specificationsFully elaborated document contains all technical requirement. Fully elaborated document contains all technical requirement. They requires extensive efforts to prepare and maintain with lot They requires extensive efforts to prepare and maintain with lot of repetition.of repetition.

Amendment to applicable standardsAmendment to applicable standards

Brief document referring to the existing standards and Brief document referring to the existing standards and specify changes as applicablespecify changes as applicableFunctional specifications.Functional specifications.

It is a statement of requirement.It is a statement of requirement.

Typical content of specification.Typical content of specification.

Technical requirement.Technical requirement.

Process - Design - Material - TestingProcess - Design - Material - TestingCode requirement.Code requirement.Health Safety and Environment.Health Safety and Environment.Customer needs.Customer needs.Market requirement.Market requirement.Manufacturer-ability/Construct-ability.Manufacturer-ability/Construct-ability.Operability / Maintainability.Operability / Maintainability.QA / QC requirement.QA / QC requirement.

Development of Product specificationDevelopment of Product specification

•Preparation.Preparation.This is the most critical engineering activities where customer requirements are defined This is the most critical engineering activities where customer requirements are defined

by experienced engineerby experienced engineer Review.Review.This includes the multi discipline review for checking correctness, completion and This includes the multi discipline review for checking correctness, completion and maximizing value.maximizing value.

Approval.Approval.Authorization of the document by the most senior technical authority in the organization.Authorization of the document by the most senior technical authority in the organization.

Revision control.Revision control.A mechanism that control the changes to specification and sustaining the technical

integrity of the specification.

Preparation of SpecificationPreparation of Specification • Define the basic functions using Verbs and Nouns Ex.

* Pump - Water * Cool - Air

* Transport - Goods * Cut - Metal

• Define the basic duties using quantities and units.

Ex. * Flow 1000 M3 / hr.

* Inlet Temp. 40.0 Degree Centigrade.

* Inlet Pressure 2.0 bars

* Outlet Pressure 20 bars.

Preparation of SpecificationPreparation of Specification

• Check process conditionsCheck process conditions

Ex. * Water compositionEx. * Water composition * Alkalinity/Acidity* Alkalinity/Acidity

* Solid content* Solid content * Gas/water ratio.* Gas/water ratio.• Operation conditionsOperation conditions

Ex. * Fixed / Variable duties * Variances.Ex. * Fixed / Variable duties * Variances.

* Site conditions * Reliability. * Site conditions * Reliability. • Determine design featuresDetermine design features

Ex. * Pump type * Driver type.Ex. * Pump type * Driver type.

* Protection systems * installation.* Protection systems * installation.

Preparation of SpecificationPreparation of Specification

• Select MaterialSelect Material

Ex. * ServiceabilityEx. * Serviceability * Availability * Availability

* Manufacturing* Manufacturing * Maintenance * Maintenance

* Durability * Durability * Cost effectiveness * Cost effectiveness

• TestingTesting

* Criticality* Criticality * Mech. String test.* Mech. String test. * * Performance test * Durability test.Performance test * Durability test.

• Code requirementCode requirement

Basically listing the applicable codes and standardsBasically listing the applicable codes and standards

Preparation of SpecificationPreparation of Specification• HSE requirementHSE requirement

Ex. * Noise levelEx. * Noise level * Personal protection* Personal protection

* Leaks / Vents* Leaks / Vents * Safeguarding* Safeguarding• Customer needsCustomer needs

Ex. * Service-life Ex. * Service-life * Availability* Availability

* Utilities * Utilities * Painting* Painting

* Dimensions* Dimensions * Weight* Weight• Market requirements.Market requirements.

Consider your competitors, Customer expectation and market trends.Consider your competitors, Customer expectation and market trends.

Preparation of SpecificationPreparation of Specification•ManufacturingManufacturing

The proposed design should be checked for ease of manufacturing The proposed design should be checked for ease of manufacturing i.e. the industry can realize the product at the most cost effective i.e. the industry can realize the product at the most cost effective matter using proven technologies with minimum risk.matter using proven technologies with minimum risk.• Operability / MaintainabilityOperability / Maintainability

The design should provide operation friendly product that will The design should provide operation friendly product that will deliver its objective over the intended service life without any major deliver its objective over the intended service life without any major break down or excessive frequent maintenance efforts.break down or excessive frequent maintenance efforts.

Preparation of SpecificationPreparation of Specification

• Quality AssuranceQuality Assurance

Assess the supplier by requesting information on:Assess the supplier by requesting information on:

- Quality system- Quality system - Technical know-how- Technical know-how

- Production capacity- Production capacity - Financial status- Financial status• Quality controlQuality control

Specify the Q/C requirement in the requisitionSpecify the Q/C requirement in the requisition

- Periodic audits- Periodic audits - Inspection- Inspection

- Witnessing tests- Witnessing tests - Review Q/C documents - Review Q/C documents

- Audit Q/C procedure - Certification- Audit Q/C procedure - Certification

Continual Improvement•New Technology.New Technology.

Latest developed that enhance valueLatest developed that enhance valueCustomer feedback.Customer feedback.

User feed back is the most valuable information for improvementUser feed back is the most valuable information for improvementCompetitive specification.Competitive specification.

Benchmark with others to be the world classBenchmark with others to be the world classMarket trends.Market trends.

Reading the future market trends will make you the front runner. Reading the future market trends will make you the front runner.

RememberRemember

• Standards exist Standards exist

* to be used* to be used

* to be critically examined* to be critically examined

* to be modified if not suitable* to be modified if not suitable

• We are most at risk with complex systems We are most at risk with complex systems whether during manufacturing, use or modify. whether during manufacturing, use or modify. Standards are our save guarding system.Standards are our save guarding system.