The difference between inspection and testing, and the difference between testing in inspection and laboratory testing

Inspection and testing are different in the place of occurrence.

Inspection usually refers to the product inspection carried out in the factory.

Testing usually refers to the testing and analysis of special items in the laboratory.

In addition, inspection is to inspect the appearance, workmanship, and function of the product through simple tools and equipment and visual observation visible to the naked eye, including checking whether the quantity of the product is consistent with the order, whether there are defects in the appearance, workmanship, and function, whether the packaging is correct and meets the packaging requirements of the product, whether the product is consistent with the design, and its size, color, and size, Whether the weight is consistent with the order, check whether the box mark, bar code, printing, tag, and logo are consistent with the order, and check and measure the performance, function, and parameters of the product with the help of simple equipment or the equipment provided at the factory site. For example, in garment inspection , for garment sewing test, wearing or fitting test, fabric pulling test, in electrical inspection, power test, actual operation function test, in lighting inspection, the function of bulb, lumen parameters, in toys inspection, needle test of plush toys, tension test, etc , all of these are concerning inspection testing.

The test is usually completed with the help of professional equipment in the laboratory, generally including physical and chemical tests. It refers to the test and analyzing the chemical composition of the product, testing and analyzing the physical properties of the product, and obtaining the corresponding internal parameters of the product through professional equipment and test methods, which can not be completed by ordinary inspection equipment. For example, food composition analysis, fabric composition analysis, and toy safety test , these are concerning test.

Generally speaking, inspection refers to the external use of the product, and the test is aimed at the internal performance parameters of the product.

The test conducted in the inspection refers to the test conducted with the help of simple equipment and tools and the existing professional tools and equipment available at the factory, mainly aiming at whether the use function of the product meets the actual requirements and whether all parameters meet the standards. Such as clothing wearing test, sewing pull test, furniture loading test, electrical operation function, and power consumption test all belong to the test mentioned in the inspection.

The tests carried out in the laboratory should be carried out with the help of special equipment in the laboratory, such as composition analysis of fabrics and food, composition proportion analysis, reach and ROHS test of electrical products, and color fastness test of clothing, etc.

For example, we use a wet white cloth to wipe clothes to observe whether they fade. This kind of colorfastness inspection and test is a simple test, which is completed by a simple method with the help of simple equipment and tools, while the colorfastness test in the laboratory needs more professional equipment and instruments to complete, in order to obtain specific performance parameters.