Manufacturing and Quality Control blog

A Pre-Shipment Inspection (PSI) is a quality control procedure carried out at a supplier’s premises by either your QC department or an independent quality control agency contracted to you. It’s a commonplace check within the consumer goods industry in particular and helps importers, traders, wholesalers, and retailers guarantee the quality of goods before they are shipped. It guards against any nasty surprises, and means you know your goods are in working order long before you take delivery — pretty useful if your supplier is halfway around the world.

La calidad de productos cerámicos se evalúa difícilmente porque casi siempre habrán defectos. La principal razón detrás de eso es que se trata de un material natural y debido a su naturaleza delicada, su producción implica actos manuales. Sin embargo, es imperativo explicar claramente, al proveedor, el tipo de calidad requerida para sus productos cerámicos. Con esta intención, el comprador debe tomar en consideración dos puntos: la conformidad del material con los estándares y los requerimientos y estándares cosméticos.

The quality of ceramic products is difficult to gauge because there will almost certainly be defects. The main reason behind this is that it is a natural material and due to the delicate nature of it, all of the production involves handcrafting. However, it is imperative to clearly explain, to the supplier, the kind of ceramic products quality required. To do so, the buyer should take into account two points: the material's conformity to standards and both its requirements and standards of cosmetics.

The overall appearance of a product is an important criteria in the purchasing decision. For hardline, electronics or electrical products, one of the most common defects identified during inspection are scratches. Some are obvious and others more discreet; therefore, during an inspection, the QC will classify each one of them, making the difference between major and minor scratch marks. When can scratch marks appear? How do we go about classifying this defect?

Garment manufacturing is one of the complex form of production. Many factors affect the final aspect of garments: the fabric, the sewing, the design, etc. During a garment inspection, various tests are performed to check that the goods are well produced and the customer will be able to wear them normally. The measurement test and the fitting tests for garment inspections are the two testing methods utilized the most for this purpose.

Una gran oferta de servicios de inspección son ofrecidos a los compradores con el fin de controlar la mercancía a lo largo del proceso de producción y previo a su embarque y cada uno de estos servicios permiten lograr objetivos específicos en cuanto al control y al aseguramiento de calidad. Entonces para qué sirve una inspección durante la producción y cuáles son sus objetivos?

La tabla AQL es bastante compleja especialmente cuando se define el muestreo para la inspección de calidad. Todos conocemos lo básico: identificar el muestreo según la cantidad total del pedido, sin embargo ¿estamos todos conscientes que el tamaño del muestreo por tipo de defecto crítico, mayor y menor puede ser diferente?

Behind its simple aspect, the AQL table is complex, especially when we need to define the AQL sampling size for product inspection. We all know the basics: identify the sampling size based on the total order quantity however do you know you can adjust AQL sampling plan for critical, major and minor defects?

After performing the quality inspection in the factory, the inspector prepares the draft report on-site and reviews with the factory manager. However a draft report is different from the final report and the buyer should be fully aware of the differences to avoid any misunderstanding of the quality inspection result.