Inspection knowledge

  • Tableware Basic Knowledge and Inspection Standard

    The tableware can be roughly divided into three types: ceramics, glassware and knife & fork. How to inspect the tableware? Ceramic Tableware In the past, ceramics were considered as non-toxic tableware by public while there were poisoning reports for using the ceramic tableware. The beautiful...
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  • Inspection Standard and Method for Fixed Fitness Equipment

    1. Inspection for External Structure of Fixed Fitness Equipment 1.1Edge Inspect all edges and sharp corner on the surface of each supporting of the fitness equipment according to size test and contact inspection, and the radius shall be not greater than 2.5mm. All other edges those are accessible...
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  • Acceptance Standard for Glass Bottle

    I. Mold Inspection 1.Most of manufacturers specialized in producing glass alcohol bottle carry out production depending on molds provided by clients or molds newly made as per drawings and sample bottles, which may affect the key dimension of formed mold. Therefore the key dimension must be commu...
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  • How to inspect LED lamps?

    I. Visual Inspection on LED Lamps Appearance requirements: By visual inspection on shell and cover about 0.5m away from the lamp, there is no deformation, scratch, abrasion, paint removed and dirt; contact pins are not deformed; fluorescent tube is not loose and there is no abnormal sound. Dimens...
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  • Test Method for Various Valves in Valve Inspection

    Test Method for Various Valves in Valve Inspection In general, industrial valves do not need strength test during use while the repaired valve body and cover or corrosive and damaged valve body and cover shall be conducted for strength test. The set pressure test, reseating pressure test and othe...
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  • Common Inspection Methods and Standards for Household Appliances

    1. Panel compression method uses the function of each switch and knob exposed outside of the electrical panel, the console or the machine to check and roughly judge the location of the fault. For example, the TV sound is sporadic sometimes, and the volume knob is adjusted to appear “Kluck” sound ...
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  • Field Inspection Standards of Tents

    1 .Counting & Spot Check Randomly select cartons at each position from upper, middle and bottom as well as four corners, which can not only prevent cheating but also ensure the selection of representative samples to reduce risks caused by uneven sampling. 2 .Outer Carton Inspection Inspect if...
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  • Inspection Standard for Textile Appearance Quality

    General steps for textile appearance quality inspection: Inspection Contents: The textile appearance quality inspection starts from the color accuracy. The inspection procedures are shown as following: inspecting the color accuracy, raw material defect, testing weaving defect, pre-processing def...
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  • Inspection Standard for Wooden Furniture

    Inspection Standard for Wooden Furniture Inspection Requirements for Appearance Quality The following defects are not allowed on processed product: those parts made of artificial board shall be completed for edge banding; there are degumming, bubble, open joint, transparent glue and other defects...
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  • What is Cost of Quality?

    Cost of Quality (COQ) was first proposed by Armand Vallin Feigenbaum, an American who initiated "Total Quality Management (TQM)", and it literally means the cost incurred to ensure that a product (or service) meets the specified re...
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  • Inspection of common hazards in children’s toys

    Toys are known for being "children's closest companions". However, most people are unaware that some toys have safety hazards that threaten the health and safety of our children. What are the key product quality challenges found in quality testing of children's toys? How...
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  • The importance of quality inspections for company’s products

    The importance of quality inspections for company's products Manufacturing without quality inspections is like walking with your eyes closed, since it is impossible to grasp the status of the production process. This will inevitably lead to the omission of the required a...
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