Defect Classification

Defect Classification

A. Guideline

1. This inspection protocol will be applied 2. Sampling Plan: ISO 2859 Single Sampling Plans for Normal Inspection

Sample Size: General Inspection Level II AQL: Critical=0.0 (none allowed) Major=1.0 Minor=2.5

3. Defect definition Critical Defect:
A defect likely to result in a hazardous or unsafe condition for an individual using the product or fails to meet mandatory regulations. Major Defect: a defect that is likely to result in failure, reduce the usability & salability and can easily be detected by the customer. Minor Defect:
A defect that does not reduce the usability of the product, can be noticed only after careful examination, and may reduce the salability. he classification of a defect depends on the degree of severity. If any found defect is not mentioned in this inspection protocol, it will be classified according to above definition
4. If there is a defect such that the factory intends to produce, the defect will be reported in the Remark of the inspection report. The inspection result will be either pending or fail. 5. All items in this inspection protocol are applied only when applicable. This inspection protocol does not necessarily include all defects found during inspection. 6. The product category definition of E&E is as below:

Product Category

Definition

Accessory Not designed for independent usage. Examples: cord, transformer
Luminaire All kinds of lighting products that is powered by household voltages
Audio & Video Products Products that generate audio and/or video signals
Electric Appliance Powered by mains
Electronic Product Products requiring low input voltage (
IT & Telecom Products Products and accessories used in IT & telecom industries

B. Defect Classification

Note: Visual check – at a distance of 30 cm Measurements done according to individual product specific data sheets CRI – Critical / MAJ – Major / MIN – Minor

Deviation from characteristics/specifications

Limit / Value

Classification

CRI MAJ MIN
1 Packaging
1.1 Transport packaging (e.g. Export carton) / Visible deviation from packaging specification
Tape missing x
doesn’t stick x
wrong x
Cardboard inlay on top / bottom side missing x
Imprinting (e.g. EAN-code, Recycling-Symbol, etc.) missing x
wrong x
illegible x
1.2 Sales packaging (e.g. Gift Box)
Content / Product wrong x
damaged x
missing x
Tape missing x
doesn’t stick x
wrong x
Imprinting (e.g. EAN-code, Recycling-Symbol, etc.) missing x
wrong x
illegible x
2 Condition upon delivery of product and / or packaging
2.1 Smell, wetness, mould x
2.2 Dirt, Dust slightly x
much x
not removable x
2.3 Rust slightly x
much x
2.4 Damage
influencing the safety x
influencing the function x
influencing the cosmetic / optical impression x
breakage x
scratches slightly x
many or big x
2.5 Something else inside (e.g. cable tie, solder, screw)
influencing the safety x
influencing the function x
influencing the cosmetic / optical impression x
2.6 Parts missing or loose
influencing the safety x
influencing the function x
influencing the cosmetic / optical impression x
Deviation from characteristics/specifications Limit / Value Classification
CRI MAJ MIN
2.7 Accessories missing or wrong
Instruction Manual x
Warranty Card x
Battery, Remote Control, etc. x
2.8 Marking
Silk-screening on product missing x
wrong x
illegible x
Tape test for silk-screening or pad printing (with Scotch tape) comes off x
Rating Label missing x
wrong x
illegible x
Test with petroleum comes off x
3 Workmanship
Colour, Coating, Varnishing, etc. wrong x
uneven x x
Colour deviation between parts slightly x
much x
Burrs, sharp edges, splinter slightly x
much x
Flow marks, gaps slightly x
much x
3.1 Wobbling (must be specified for the product) > 0mm x
> 0.5mm x
Pull Test for Knobs, Switches, etc. < 1.5kg x
3.2 Pull Test for Power Cord Weight Pull force > 2mm x
< 1kg 30N
1 – 4kg 60N
> 4kg 100N
3.3 Parts not fitting properly together (e.g. gap, too loose, etc.) > 0mm x
3.4 Much force needed to assemble or disassemble (must be specified for the product) slightly x
much x
Contact screws, terminals loose
influencing the safety x
influencing the function x
influencing the cosmetic / optical impression x
3.5 Tolerance
Too long, too short, etc. x
3.6 Measurements out of specification x
Temperature / Time / Suction power / Input Power / etc. x
Frequency Range / etc. x
Creapage and clearance distance too small x
4 Function
intermittent x
not working x
not safe (start working uncontrolled) x
4.1 Mechanical defect
influencing the safety x
influencing the function x
force needed to operate x
4.2 Electrical defect
influencing the safety x
influencing the function x
influencing the cosmetic / optical impression x
5 Safety
High Voltage Test fail x
Earth Continue Test fail x
Insulation Resistance fail x