Quality Control Services

Quality Control Services

Delflow Industries Ltd provides end-to-end Quality Control (QC) services designed to help manufacturers, packagers and suppliers deliver safe, compliant and consistently high-quality products. Our QC offerings combine practical on-site inspection, laboratory testing, systems development, and people-focused training to reduce defects, lower costs, and strengthen customer confidence. We design QC programs that fit small-scale operations through larger industrial plants across chemical, packaging, food & beverage, household products and allied industries.

Our Quality Control Service Portfolio

1. Incoming Materials Inspection & Supplier Qualification

  • Raw material sampling, visual inspection and acceptance/rejection decisions at receipt.

  • Supplier audits and qualification: capability assessments, audit checklists, and corrective action tracking.

  • Establishment of supplier scorecards and periodic performance reviews.

2. In-Process Quality Control

  • Process checkpoints and statistical sampling plans (based on AQL, ANSI/ISO sampling tables).

  • Real-time data capture for critical control points (CCPs) and production-line hold & release procedures.

  • Root-cause failure analysis (RCA) and containment actions to stop non-conforming production quickly.

3. Final Product Inspection & Release

  • Finished-goods inspection (visual, dimensional, functional).

  • Batch/lot verification and seal integrity tests for packaged products.

  • Certificate of Conformity (CoC) / Release documentation and traceability records.

4. Laboratory Testing & Analytical Services

  • Physical tests: density, viscosity, pH, moisture content, particle size, etc. (tailored to product family).

  • Chemical analyses: identification, potency, impurity profiling and stability screening.

  • Microbiological testing (for applicable product categories) — hygiene swabs, plate counts, pathogen screens.

  • Contract lab coordination and third-party lab management where specialized tests are required.

5. Inspection & Non-Destructive Testing (NDT)

  • Dimensional checks, leak/seal testing, pressure/hydro tests, and other NDT methods suitable to product/material.

  • Use of calibrated measuring equipment with full equipment log and calibration traceability.

6. Quality Management Systems (QMS) Support

  • Gap analysis and implementation support for ISO 9001, ISO 14001, ISO 45001, FSSC/ISO 22000 (where relevant).

  • Writing and updating SOPs, QC manuals, inspection plans, and flowcharts tailored to your plant.

  • Document control systems, record-retention planning and audit-ready filing.

7. Audits, Compliance & Regulatory Support

  • Internal audit programs, third-party audit preparation and corrective/preventive action (CAPA) management.

  • Support for regulatory submissions, labelling compliance checks, and safety data sheet (SDS) reviews.

  • Pre-shipment inspections and regulatory compliance verification for export markets.

8. Statistical Process Control (SPC) & Data Analytics

  • Implementation of SPC charts, capability studies (Cp, Cpk), and trend analysis dashboards.

  • KPI definition and tracking (yield, defect rate, first-pass yield, customer complaints, on-time release).

  • Digital data capture recommendations and roll-out strategies for continuous improvement.

9. Training & Competency Development

  • Tailored training for QC inspectors, production operators, supervisors and managers (onboarding & refresher courses).

  • Practical workshops: sampling technique, inspection methods, use of measurement equipment, GMP/Good Laboratory Practice.

  • Assessment and competency sign-off programs.

10. Corrective Action, Continuous Improvement & CAPA

  • Structured CAPA lifecycle management: identification, investigation, corrective plan, verification and closure.

  • Lean Six Sigma-informed tools (5 Whys, fishbone/Ishikawa, FMEA) to reduce variation and waste.

  • Continuous improvement roadmaps and pilot improvement projects.

How We Work — Our Approach

  1. Assess & Plan — We start with a site audit and risk assessment to map critical quality points, product profiles and customer requirements.

  2. Design & Implement — Build tailored QC plans, sampling protocols, SOPs and inspection schedules.

  3. Operationalize — Deploy inspection teams, testing routines, and data capture mechanisms.

  4. Optimize — Use SPC and CAPA to close loops, reduce defects and improve throughput.

  5. Sustain — Train your team and establish governance to keep improvements durable and audit-ready.

Tools & Methodologies

  • Sampling methods: Random, stratified, composite; AQL-based acceptance plans.

  • Analytical approach: ISO/ASTM-referenced test methods where applicable.

  • Problem solving: PDCA cycle, 5 Whys, Fishbone, FMEA.

  • Quality frameworks: ISO 9001 alignment, GMP principles, HACCP where food-related processes apply.

  • Calibration & metrology: Scheduled calibration plans and equipment lifecycle tracking.

Benefits to Your Business

  • Reduced defects and rework — lower production costs and higher margins.

  • Faster time-to-market — smoother release procedures and fewer hold-ups.

  • Stronger customer trust — predictable quality and fewer complaints or returns.

  • Regulatory readiness — fewer surprises during external audits or inspections.

  • Data-driven decisions — visibility into production trends and continuous improvement opportunities.

Typical Deliverables

  • Inspection checklists and sampling plans.

  • Test reports and Certificates of Analysis (CoA).

  • Non-conformance reports (NCRs), CAPA logs and closure evidence.

  • QMS documentation: SOPs, process maps, and training records.

  • Monthly/quarterly quality dashboards and executive summaries.

Flexible Engagement Models

  • Project-based — one-off plant inspections, set-up validations, new-product introductions.

  • Retainer — ongoing QC team embedded on-site for sustained operations.

  • A la carte — specific services (lab testing, training, supplier audits) on demand.

  • Turnkey — full QC program design and handover, ideal for new plants or product lines.

Case Example (Illustrative)

For a satchet water production client, Delflow implemented a three-point QC system: raw water source testing, in-line microbial and TDS checks during production, and finished-sachet visual and leak inspections. Result: a 70% reduction in customer complaints and a measurable drop in batch rejections within three months. (Note: example is illustrative; Delflow can provide real case studies on request.)

Why Choose Delflow Industries Ltd

  • Practical industry experience across chemical, packaging and allied sectors.

  • Tailored, scalable QC programs — not one-size-fits-all templates.

  • Emphasis on training and knowledge transfer so your team gains capability, not dependency.

  • Focus on documentation and traceability to support audits and compliance.

Getting Started — Next Steps

  1. Contact Delflow for a no-obligation site assessment.

  2. Receive a tailored QC proposal with scope, timelines and pricing options.

  3. Approve and schedule implementation phases with transparent milestones.


Contact us today!