6 Categories of Product Defects that are Classified in the AQL Standard

Although most countries have their own product liability standards, the international standard that governs this area of law across the globe is the ISO 2859-1 (or IEC 60065) standard. The ISO 2859-1 standard distinguishes 6 main categories of product defects in AQL, with each one described below. This information may be helpful if you are a manufacturer or distributor involved in the design and production of consumer products, as well as their distribution and marketing to ensure that you know how to deal with and report different types of defects in accordance with legal requirements.

1) External Appearance

When a product’s external appearance doesn’t match its original design, it’s considered defective. For example, if a coffee maker is supposed to be red but arrives black or brown, it is considered defective. This type of defect refers to something outwardly visible. (For more on classifying defects by outward appearance, check out examples here.)

2) Wiring, Plugs and Connectors

Wiring and connectors can be flawed in a variety of ways. They may be too thin, leading to overheating or even fire. Too thick, and they can pose electric shock hazards. Faulty insulation allows moisture penetration, which leads to rusting and corrosion on internal components, ultimately degrading performance or rendering them useless. Poor connections may create excessive resistance, thereby reducing efficiency. Insulation defects often stem from over-extrusion during manufacturing, creating an area where there is no insulating layer at all, while poor soldering can lead to increased electrical resistance.

3) Labels and Instructions

If a product is faulty due to incorrect labeling or instructions, it will be classed as being defective. The instructions may be unclear or give confusing advice on how to use a product. If a product has incorrect information on its label, it is not fit for purpose and needs to be corrected. Labels should have all relevant details of a product including features and safe usage information. These labels can also include other things such as style number, color and so on. Quality control from a reputed Quality Inspection company in China aims to find these kind of defects during sampling before they reach customers’ hands; after all, you don’t want an unsafe product reaching your target market even if it meets specifications!

4) Paint Surface Finish

The Paint Surface Finish is any surface finish used on a product. This can be to provide scratch or impact resistance or simply for decorative purposes. For instance, if you were making a phone case with an aluminum insert to protect your phone from damage, there would likely be some kind of paint applied over it. If something went wrong with the pre shipment inspection on that paint application (too much paint was applied and caused a bulge on one side), it would fail the inspection and should not be shipped out to customers like a new product. Below is an image of a defective product due to a defect in the paint surface finish

5) Motor Performance

Motor performance is one category of defects. If you see an issue with your fan or blower during your testing, then you might have a motor performance defect. It means there’s a problem with how fast or slow it operates and it isn’t able to change speeds when appropriate. For example, a motor that only moves very slowly or one that can’t move at all could be considered defective. You also need to make sure they switch speeds correctly as needed. Some products require them to go back and forth between two speeds instead of just on or off. Most products will have several motors within them, so try each out individually first to find out where any issues exist before getting too deep into troubleshooting with complex devices like fans and blowers.

6) Structural Integrity

The structural integrity of a product is part of its quality. Products could be properly designed, but end up not being strong enough to handle normal wear and tear. Some aspects to consider include dimensions, materials used, function, and aesthetic properties such as how a product looks after use or improper installation. This type of defect is often referred to as poor durability; it happens when products do not last as long as expected for their intended purpose because they have been improperly designed or poorly manufactured (such as components breaking under stress). Manufacturing defects often fall into one or more broad categories.