QA/QC
MEC Engineering Company practices 100% Quality Control to the utmost satisfaction of the Client. To achieve the required level of quality work and good workmanship, the Company sticks to well planned and systematic Quality Control Program.
The Quality of work and Quality Control will be fully in accordance with Engineering specifications, codes and quality plan laid down by specific project.
The Project crew plays the most important role. The MEC ensures that the right person is employed for the right job, which can carry out his responsibilities with correct sense and without any difficulty. The QA/QC inspector will ensure team spirit and quality awareness.
The following steps will be adopted to ensure the quality stage wise:
Stage 1 - Procurement of Materials:
Our Engineering & Construction department does preparation of bill of material; where a team of experienced engineers with the help of proposed project site staff ensures the right material take off.
Project material coordinator and assigned Project Manager jointly supervise transfer of bill of materials to the material status report (MSR). Copies of MSR are recorded at Engineering and Construction department, Purchasing department and a copy is also given to the Project Manager for his record and follows up where necessary.
Enquires with the detail specifications are issued only to the qualified vendors. Moreover, to ensure the compliance with the applicable specifications, only our Engineering department evaluates those offers, which comply with the proposed specifications. After scrutinizing the offer, we submit all the relevant and necessary documents and / or samples as required by the project specifications to the client.
At the project site the Material Supervisor / Project Manager checks the material. A material receiving report is made taking into account comments if any and copies are furnished to the Engineering and Construction department as well as procurement department for their follow up action regarding any discrepancies, damages or short supplies.
During material delivery our QA / QC inspector visits supplier warehouse to see that material handling and transport is done properly. At the site warehouse, QA / QC inspector with warehouse in-charge checks for proper storage and stocking of the materials taking into account the required protection and guarding as per manufacturer’s recommendations.
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Stage 2- Project Execution:
To carry out an effective QA / QC program, we divide the whole project into following activities.
- Civil Activities.
- Structural Activities.
- Architectural Activities.
- Mechanical Activities.
- Electrical Activities.
Depending upon the nature and type of project work, above main activities are further divided into sub-activities and detailed activities wise quality control and quality assurance program is prepared which helps to achieve a quality work goal. A few quality assurance activities subject to quality control but are not limited to are listed below.
- Survey and Dimensional layout.
- All civil works materials to pass ASTM & client’s standards.
- All structural Steel activities, including marking, cutting, welding using certified welder in compliance with welding procedures and installations etc.
- All concrete mixes to pass ASTM & client’s standards.
- Earth works, filling materials, compaction etc.
- Grades and locations of piping systems underground and above ground.
- Allowance requirements for expansion and contraction of pipes.
- Pipes to be tested before back filling and insulation cladding.
- Ductwork for air tightness before insulation installations.
- Chilled water pipes to be pressure tested for leak tightness before back filling and / or insulation cladding.
- Pipes and tubes for instrumentation and controls to be checked pneumatically in accordance with ANSI codes.
- Air balancing measurement of air discharges, room temperatures, winter / summer etc, before test and commissioning of HVAC system.
- All electrical fixtures, cables, fittings and materials to pass codes and client’s standards.
- Cable splices testing.
- Electrical equipment to bear manufacturer’s stamping and certificates.
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Stage 3 - Quality Assurance:
MEC would observe following activities as a minimum, which help achieve assurance at site.
- The Engineers / Supervisors of each discipline to be assigned in this project will have full knowledge and nature of work. In addition, Material Supervisor (QA / QC) will be posted who shall be responsible for all related activities.
- Proper handling and storage of materials and equipment’s to prevent damages and corrosions.
- Commence job activities at pre-designated specific times and make sure the men, materials and equipment’s for carrying out the job activities are ready and QA / QC supervisor is present on the job.
- Employment of experienced skilled on the job.
- All installations will be checked by QA / QC supervisor to be in strict compliance with manufacturer’s recommended procedures approved by CLIENT.
- Sleeves and inserts to be erected prior to placement of concrete of proper size and placed correctly.
- Fixture and equipment are installed at correct height and location as per architectural drawings as per standard practice.
- All water piping systems will be flushed and disinfected in accordance with approved procedures.
- All shop drawings are approved prior to use ands are in conformance with manufacturer’s catalogues and construction practices.
- As built drawings are updated on routine basis in conformance with progress on site.
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Stage 4 - Inspection Requirements:
MEC will maintain a document inspection system that will:
- Provide adequate, effective quality control.
- Provide for easy identification and handling of items.
- Provide clients with advance notification of certain shop inspections & field inspection.
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