Inspection criteria as per your demand
We understand your product requirements and follow strict guidelines to source products accordingly.  We make certain the products shipped and received by you meet all quality requirements and certification.

All shipments must pass a final quality assurance check conducted by our inspectors prior to being released for shipment. The inspection guidelines include general inspection criteria, specific inspection criteria and more.

Factory Audit
We ALWAYS make sure we visit the factories to conduct an audit to confirm a supplier’s capabilities

We ensure a supplier /manufacturer conforms with the required business and production standards to deliver high quality products and services. The audit follows strict guidelines and control plans to make certain the on-site factory audit is performed effectively.

The assessment includes a long check list of factory documents, certifications, rules and regulations, control plan of materials, inspection plan, production process control, quality system, R&D capability, etc.

Photos are also taken of the premises and production areas and compiled into an  assessment summary report for your review.

Specifications / approved samples
Product qualification and specifications will be reviewed by us and verified to ensure the supplier understands your engineering design specifications and requirements and that the manufacturing process is capable of consistently producing products meeting those requirements during an actual mass production run.

The key elements are

  • Part Submission
  • Drawing verification – all critical or key characteristics match the requirement
  • Engineering or process change notification and approval
  • Potential failure areas and improvements
  • Dimension testing results
  • Record of materials and performance test
  • Qualify and verification of documents
  • Appearance approval
  • Sample evaluation reporting before sending the actual sample production parts to the you for approval and signed off.

Inspection criteria and AQL
Customer approved samples are the standard used to develop final AQL criteria. A defect classification check list will be developed to govern the general quality control point and criteria. The AQL standard utilized takes specific quantities of samples drawn randomly from the completed production based on the internally accepted standard table II-A of MIL-STD-105D.

As such, a pre-defined number of defects are considered acceptable. 0-for Critical Defect; 1.5 for Major Defect; 4.0 for Minor Defect. For certain product types that require destructive inspections (e.g. remove packaging to verify the material inside) or have more complex procedures, special inspection Level S-3 will normally be applied.

Inspection services – In-line and/ or final quality
For every shipment, a final quality inspection will be performed when 100% of the order quantity has been produced and packed into the final shipping cartons. If necessary, for new products, Source One can do an in-line inspection once production begins. We follow the Acceptable Quality Level (AQL) specified by our customers and will randomly sample test to identify the maximum percentage of defects that are considered satisfactory. If there’s no AQL specified by the customer or listed in the purchase order we will recommend one for you to approve. 

Classification of defects and categorization based on severity
Our inspectors are well trained and well versed with the technical aspects of the products. Defects are classified into four categories: Critical, Major, Minor and Trivial. The inspection report details the defects according to such as appearance, workmanship, packaging, product specification, weight & size dimension, functionality and other. The breakdown of the defect classification and recommendations are clearly defined and helps customers understand the inspection to determine how many of each type of defect they’re willing to accept in their finished goods.

Reporting and customer approved corrective action planning
Our reports give you a comprehensive Quality Control check list to describe all the findings upon completing an inspection. It includes an exhaustive list of common and known quality defects as to the product type. Customers will be able to make a decision on how many of each type of defect they’re willing to accept prior to shipment release.