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Quality Control Manual
  • 1. Scope
    This manual is cover activities affecting quality of the project performed by WRA Construction and Design Co.,Ltd.
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  • 2. Objective
    The objective of this manual is to assure that the works and facilities supplied are safe, reliable, and efficient in accordance with the contract and applicable specifications to the satisfaction of client.
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  • 3. Definitions
    • 3.1 wra construction and design co.,ltd. means wra construction and design Co.,Ltd. Who undertakes the construction work in accordance with the contract.
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    • 3.2 Client means who order wra construction and design for certain construction work including its personal, representatives and its successors.
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    • 3.3 Vendor means anyone who supplies raw materials and equipments beyond the scope of supply of client.
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    • 3.4 Contract means document concluded by and between client and wra construction and design co.,ltd. for realization of the works.
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    • 3.5 Work means all activities and service to be done by wra construction and design co.,ltd. in accordance with the contract.
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    • 3.6 Quality Assurance means the planned systematic procedures and actions to assure the work will, on completion, conform to specified requirement of client in the contract.
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    • 3.7 Quality Control means a part of Quality Assurance which determines the specifications are met
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    • 3.8 Quality Control manual means a document describe the Quality Assurance and Quality Control system to be implemented for the work.
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    • 3.9 Quality Control Plan means detailed documents to show the inspection / test actives and plans for evaluate if the work meets the contract and the project specification.
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    • 3.10 Quality Control Procedure means detailed handling methods for each critical quality control activities. It’s the supported documents for the Quality Control Manual.
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  • 4. Company Quality Policy
    • 4.1 wra construction and design co.,ltd. will plan, establish, implement, and maintain quality control systems to assure the work are comply with the contract, laws, and regulation.
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    • 4.2 In order to achieve these objective, wra construction and design co.,ltd. will be perform the follow
        • Set-up organization charts defining and showing lines of reporting and responsibility of all work done on the wra construction and design co.,ltd. and subcontract.
        • Set-up a quality control plan that identifies each point in construction work
        • Set-up a quality control plan procedure to provide instructions for critical work that is to be done each procedure shall document such things as purpose, scope, which is responsible for what, how, when, and where all step are to be performed, the resources to be used, and how the work is to be accomplished.
        • Set-up appropriate auditing and meeting program.
        • Set-up a procedure for reviewing and updating the Quality Control Manual.
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  • 5. Orgaization and Responsibilities
    • 5.1 Organization chart
      Wra construction and design co.,ltd. organization chart is show in Attachment-1.But the project organization chart will be adjust to suit to the kind and scale of each project as detail in Project Execution Plan.
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    • 5.2 Responsibilities of Key Position for Quality Functions
      • 5.2.1 Managing Director has ultimate authority over the company quality policy and system implementation.
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      • 5.2.2 QA/QC Department Manager is responsible for establishing, improving, and implementing the quality system and quality plan involving all departments in the company. In addition, he shall ensure that each quality control personnel assigned to site are suitable trained and certified for their assigned work.
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      • 5.2.3 Accounting / Admin. / Construction / Engineering / Safety Department shall ensure the department activities comply with the company quality system and procedures.
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      • 5.2.4 Project Manager has overall authority and responsibility to ensure quality performance is maintain during all phases of his project.
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      • 5.2.5 QA/QC supervisor has responsibility to maintain quality system and project quality plan audition and monitoring of all quality, identification quality problems and verifying the implementation of corrective action.
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      • 5.2.6 All other personnel have responsibility to ensure that the quality of their works satisfied the quality plan and contract requirements. In addition, personnel directly in charged with quality related tasks shall have their clearly responsibility in applicable quality procedures.
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  • 6. Quality Control Plan
    • 6.1 This plan is the detailed document to show the quality control activities and plan that will be used to ensure the total quality control of the project.
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    • 6.2 Quality control plan for each category of work is show in Inspection Test Plan.
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  • 7. Quality Control Function
    • 7.1 Contract review
      • 7.1.1 At the earliest of the project phase, project manager shall hold an organized review of the contract and its requirements in complete detail to ensure that:
        • Scopes of work and supply between wra construction and design co.,ltd. and client have been cleared.
        • The requirements have been adequately defined.
        • All contract requirements can be meet.
        • All documents specified in the contract have been received from client.
        • Any conflicts in document have been solvent.
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      • 7.1.2 QA/QC Supervisor shall prepare, from the review of the contract, complete and comprehensive quality plans for the accomplishment of work needed to totally discharge the contract. The developed quality plans shall be prepared by all function needed to contribute to the discharge of the contract, and shall be reviewed and agreed to by parties within the project organization.
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    • 7.2 Documentation control
      • 7.2.1 Document control supervisor is responsible for correct, distribute, and totally control the related documents in accordance with the contractual requirements.
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      • 7.2.2 Document status shall be establish to identify schedule date and revision number of the documents to be submitted to client and document to be supplied by client.
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      • 7.2.3 Document control supervisor shall take steps for distribution of latest documents to appropriate person. Obsolete document shall be disposed by the responsible person after substitution with the latest version.
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    • 7.3 Purchasing Control
      • 7.3.1 Each purchase order, purchase contract, or other such document shall contain:
        • Applicable drawings, specification, and standard. Inspection or test method to be used and quality levels required.
        • Characteristic to be supplied and limits to be met. It shall clearly communicate all requirements for labeling, packing, shipping, delivering, installing, or commissioning.
        • Quantity to be supplied.
        • Instructions for the submission, retention, storage, or disposition of records which constitute the objective evidence concerning the products or services supplied.
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      • 7.3.2 The quality control program to be applied to the products or services purchased shall be establishment and implementation.
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      • 7.3.3 When the work are required subcontractor. Wra construction and design co.,ltd.shall:
        • Determine which quality system standard shall be applied by the subcontractor.
        • Evaluated and maintain a record of acceptable subcontractor.
        • Carry out surveillance and audit of subcontractor operations during the services, including construction at the project site.
        • Evaluate and verify all subcontractor items as necessary to ensure that all parts of the contract are satisfactory and are in full conformance with contract requirements.
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      • 7.3.4 All amendments to purchase order and subcontracts shall carry the same degree of examination and relevant in respect to changed products or services as is applicable to the original purchase order subcontract. All such amendments shall be numbered and controlled.
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    • 7.4 Client Supplied Control
      • 7.4.1 Products or services supplied by client shall be reviewed as following • Quantities
        • Identification
        • Damage or deterioration
        • Conformance to contract requirement and applicable specification
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      • 7.4.2 When non-conformances are discovered, initiate corrective action with client as necessary to ensure that contract requirements are met.
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    • 7.5 Product Identification and Tractability Control
      • 7.5.1 Material control supervisor is responsible for maintain quality system to assure the misuse of incorrect products throughout the project cycle.
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      • 7.5.2 Where specified in the contract or the quality plan, certain materials shall be identified and traced from their specific source and related to their corresponding document and certification throughout all phase of the work.
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      • 7.5.3 Physical identification using suitable marker shall be used. Client specification shall be followed such ad for piping material “Piping Material Color Code” etc. Where physical identification on the product is impractical, physical separation tags, labels, records shall be employed.
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      • 7.5.4 A control system which maintains continuity of identity and inspection or test status for all items throughout the project cycle shall be developed and implemented.
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      • 7.5.5 Nonconformance items shall be identified and separated.
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    • 7.6 Handling and Storage Control
      • 7.6.1 Material control supervisor is responsible to prevent misuse, damage, or deterioration of materials and equipments throughout the period from beginning to the completion of the project.
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      • 7.6.2 To achieve these objectives, the following activities shall be taken:
        • Arrange storage area and provide appropriate barriers or protective cover to seal opening.
        • Damaged and nonconformance items shall be separated from the conforming items.
        • Periodically inspect items held in stock for condition and shelf life expire. Rust prevention compound shall be applied on rotating parts and sliding parts of the equipments.
        • Periodically inspect tools, machines, and special devices as necessary to ensure that they are adequately maintained and will not damage the items or materials on which they’re used.
        • Operator of handling and lifting equipment shall be qualified or have experience enough in use of the equipment for damage protection and safety.
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    • 7.7 Control of Nonconformance
      • 7.7.1 QA/QC Supervisor has responsibilities for the disposition of nonconforming items.
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      • 7.7.2 Where nonconforming items are discovered, they shall be record in Nonconformance Report and segregate place in a holding area to prevent mixing with conforming items.
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      • 7.7.3 The meeting between responsible sections and client/vendor representative shall be established under the control of QA/QC supervisor for clarify the troubles.
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      • 7.7.4 Reach a disposition decision which has the concurrence of all members of the meeting.
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      • 7.7.5 Implement the disposition decision. When the item is reused, objective evidence that any rework of re-inspection procedures were followed and that the item was found to be satisfactory for use
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    • 7.8 Control of Corrective Action
      • 7.8.1 In respect to corrective action of any kind in the work on the project under the contract, QA/QC supervisor shall investigate the cause of the nonconformance and record and relevant findings.
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      • 7.8.2 QA/QC Supervisor shall be supervised the responsible to take necessary steps to prevent recurrence of such a condition or situation. QA/QC supervisor shall be made the nonconformance Report to the project manager and the client.
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      • 7.8.3 QA/QC supervisor shall promptly initiate and carry through approved corrective action.
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      • 7.8.4 When a cause of the nonconformance is lack of information in quality procedures or inadequacy in procedures, promptly take corrective action to correct and control the matter such as revision of that procedure etc.
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    • 7.9 Measuring Equipment Control
      • 7.9.1 QA/QC Supervisor shall ensure that all measurements made for the purpose of verifying or validating items or services against the requirements of the contract shall be maintained, calibrated, and used in such a manner as to ensure the full compliance of the project with the contract.
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      • 7.9.2 All measuring equipment, instruments, gauges, and devices, well as materials use to performed measurements on the items in the contract shall be periodically calibrated of prior to use at appropriate interval by registered laboratory where practicable against certified equipment have known relationships to applicable standards.
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      • 7.9.3 Measuring equipment shall be protected against damage, environmental deterioration, and loss of accuracy. In addition, They shall be safeguarded against adjustments which affecting the calibration setting.
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      • 7.9.4 Replacement or repaired equipment’s shall be re-calibration before use.
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      • 7.9.5 The calibration records shall be available upon request to the client.
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    • 7.10 Test and inspection
      • 7.10.1 QA/QC supervisor shall be conduct the inspection, testing, and examination in accordance with inspection and established quality plan to verify conforming of the work specified requirement of the contract. The following items shall be specified:
        • Subject of inspection and test. (Such as Parts, Assembly)
        • Kinds of inspection. (Such as Welding Inspection, Dimension Inspection, Hydrostatic Test)
        • Fabrication sequence flow chart indicating inspection points.
        • Applicable code or standard.
        • Form of inspection records.
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      • 7.10.2 Pre-inspection meeting will be held for major items under the control of QA/QC Supervisor for coordination and for mutual understanding between involved person prior fabrication start.
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      • 7.10.3 Status and schedule of inspection shall be controlled by Inspector.
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      • 7.10.4 wra construction and design co.,ltd. shall not proceed with the work for witness inspection point until it has been inspected and obtained written approval by Clients Representative.
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      • 7.10.5 Regular inspection meeting with client will be held at appropriate interval to notify inspection schedule and to exchange point of view on inspection maters. In case of a serious problem has occurred, special inspection meeting shall be made immediately to clarify the problem. This meeting will be chaired by Project Manager, Supervisor in charge, and Client’s representative.
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      • 7.10.6 wra construction and design co.,ltd. will be submit client an inspection report for each item after the inspection has been successfully completed. The inspection report shall be specified, as a minimum, the items as following:
        • Subject of inspection.
        • Kind of inspection or observation.
        • Inspection procedure.
        • Type of equipment used and valid tractability certification where applicable.
        • Acceptance criteria.
        • Inspection results.
        • Inspection report shall be signed and dated by inspector and Client’s representative.
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    • 7.11 Quality Records
      • 7.11.1 QA/QC Supervisor have responsible for correct the quality records that objectively demonstrate that the quality control system if effective. These records shall include:
        • Purchase orders
        • Raw material certificate and test report.
        • Quality plan, inspection and test reports, and records.
        • Material control ledger.
        • Nonconformance report.
        • Measuring equipment calibration records.
        • Quality control program audit records. (if any)
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      • 7.11.2 Identify, index, and file quality records shall be made for easy retrieval.
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      • 7.11.3 Make these quality records available to the applicable jurisdictional authority and the client for analysis and review.
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      • 7.11.4 Provide suitable storage for these quality records to prevent deterioration and store such records for the time required by client.