People are constantly making sales and exchanges of goodsbetween themselves. The most important properties of the product are its consumer and exchange value. That is, how much a particular product is useful to a person and whether it is able to become the equivalent of an exchange between people who own the goods.
Let us dwell briefly on the basic general characteristics of goods:
1.Physical properties of the product (mechanical, electrical, thermal, optical). Weight, size, weight, density and other parameters are important to know when taking food. For example, the category of eggs depends on the absolute mass. Selected eggs in size exceed 60 grams, and those that belong to category 2, should not be less than 44 g.
In building goods, the account is kept in linearmeters, tons, determine the area and diameter of products. Heat resistance is necessary for cooking utensils in everyday life, and heat resistance is taken into account in production in industrial processes. When choosing cameras and video cameras take into account their optical characteristics.
2.Chemical properties (moisture resistance or solubility in water and other liquids). The chemical composition of products depends on their value. With the accumulation of even a small amount of heavy metals and other harmful impurities in them, they can become a source of poisoning of humans and animals. And with a lack of useful elements in food, normal processes in the body are disrupted. Consider the chemical properties of the product is necessary when cleaning fur, woolen and leather things, so as not to spoil their appearance.
Properties such as elasticity, hardness and strength are important for biscuits, refined sugar, macaroni.
3.Biological properties determine how much the product is resistant to the effects of microorganisms, rodents and insects. To do this, it is necessary to store the goods correctly, to monitor the packaging and correctly select the packaging material and take into account the storage conditions. For example, the flour will quickly deteriorate in a damp room, at high temperatures furniture may crack, lose its shine.
4.The physical and chemical properties of the product are important to consider when baking. After all, at a high temperature of 250 degrees and higher irreversible processes occur in fats, they are destroyed, and proteins are folded. For example, permeability and absorbency are taken into account in the manufacture of water filters and vacuum cleaners, when choosing shoes and clothes.
Consumer properties of the goods show,how useful it is for its use. They, too, can be subdivided and described in more detail, considering the example of non-food and grocery goods. Anthropometric and physiological properties are evident in the size range of clothes, hats, shoes in different countries of the world for adults and children, facilities for athletes and disabled people.
It is important to take into account hygienic indicators, becauseclothes, furniture, skin care products for a young child have a characteristic feature. Aesthetic taste, color perception, psychological factor and a person's nationality also influence the choice of goods for their consumption.
Taking into account the consumer propertiesfood products, one should pay attention to their environmental characteristics and safety in use. Be sure to consider the expiration dates, properly store food and cook meals from them.
You can familiarize yourself with the properties of any product byits specifications. On many of them a detailed specification of the goods is made with indication of its name, price, unit of measure, grade or size, whether it is manufactured in accordance with GOST or not.
A specification is a document thatis attached to the supply contract and is signed by both parties: the buyer and the seller. In this document, the prices for the goods are coordinated, stipulate the terms of delivery, the terms, the admissibility of the deviation, the re-sorting, the packaging requirements and the wholesale supply schedules.
