Class of washing - how important is it?

When buying a washing machine, consumers are usually guided by the following criteria: dimensions, type of loading, quality of washing, spinning, and electricity consumption. The division of washing machines into classes of energy consumption, washing, squeezing allows the buyer to pick up a suitable brand and model. In different years in different countries of the world special labels have been developed that help to inform the consumer even in the store, how effective the device is. On these labels there was a class of washing, as well as a class of energy consumption.

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The value of the

marking To unify the values ​​in 1992, the European Community directive 92 /75/ EEC obliged European manufacturers to label the product with a special label of a single sample.

With different colors and letters on the label, the wash class of the washing machine was marked, its power consumption and spin - from "A"( maximum) to "G"( minimum).Such a system resembles the evaluation and receipt of marks in the school, only on a 7-point system:

• "A" - excellent.
• "B" - very good.
• "C" is good.
• "D" is normal.
• "E" - satisfactory.
• "F" is bad.
• "G" - very bad.

Important! The higher the class of washing, the better the machine will wash, but the cost will be higher.

Usually the last classes are not found, and which manufacturer will allow to produce products marked with such signs, but if you find such machines, then do not risk buying them. Determine the class of the model of household appliances is very simple: the sticker is located directly on the body.

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How is the wash class of the washing machine determined?

Each type of contamination on the same machine is washed in different ways. The origin of stains, as well as the detergent and type of fabric used, affects the quality of washing, so the class of washing models is assigned after testing by washing machines under the same conditions.

Important! The washing quality must be in accordance with EN-60456-A11.

The test is as follows.

Preparatory stage

First 5 kg of cotton linen( sheets, pillowcases, wafer towels) are washed in clean water and dried in a special chamber at a high temperature and 65% relative humidity.

After - the laundry is directly tested. To determine the quality of washing use a detergent consisting of 77% of powder, 20% of enzymes and 3% of bleach.

Important! This product is not modernized, it can not be bought in stores, the product lacks flavors and the product is supplied only to the manufacturers of washing machines. In addition, all ingredients prior to testing should be stored separately in a sealed container, and mixed immediately before testing.

Washing the

5 kg of laundry is placed in a washing machine in a certain way and attached special pieces of fabric sewn into one strip, and having "reference" impurities( fat, mineral oils, cocoa, red wine, graphite, porcine blood).It is these pollution that are most often found in everyday life.

Important! The tested pieces of fabric for determining the washing class of the washing machine are produced in Germany, Switzerland and are sold to the household appliance manufacturers.

The whole process takes about 3 days. Linen is washed 5 times at a temperature of 60 C, and the average of the sum of the experiments( excluding the first experience, since the result of washing at this stage will be better than others).After 5 washings, pieces of cloth with impurities become almost white.

Quality evaluation

For the analysis of the quality of washing there are about 20 parameters. One of the main things is the percentage of light reflection. By reflecting light from different pieces of tissue and calculating a certain value, which is then compared with the same shreds washed in the reference machine.

The highest class of washing - "A", is assigned to a machine that has a higher than the reference value of more than 3%, and the lowest - a model that has a 12% lower value than the reference one.

Washing machine with washing class "A" should wash clothes 1.03 times better than the reference machine. The difference between the classes A "and" B "will be noticeable when it comes to white shirts or bedding.

Important! The reference machine is located in the Department of Research and Resource Testing of FGU "Rostest-Moscow".Such a car is unique in Russia.

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What else should I look for when choosing a car?

The wash class of the washing machine is by far not the only marking parameter that you should pay attention to when choosing the right model for you. There are some nuances that will make it possible to more accurately understand all the possibilities of this or that aggregate. Which ones - see below.

Badge "Woolmark"

Most modern machines have the highest class of washing "A".Therefore, this criterion has ceased to be in some cases the main evaluation category.

The main reason for this is that the evaluation is conducted only on one program - the longest, the most intense, and with hot water. But you will also use other programs, including short ones, and when washing delicate things, the temperature of the water should not exceed 40 C. Therefore, it's impossible to know how the program data behaves in the chosen model.

Take interest in the voluntary certification that has become relevant in recent years. This assessment concerns only one program - washing the wool. And since this is one of the most complex programs, it is impossible to evaluate its features without using a machine.

Important! Voluntary certification of manufacturers are held at the European Wool Institute "Woolmark".The received certificate confirms not so much the effectiveness of the program( unlike cotton, wool is erased easier and faster), but takes into account the careful, gentle attitude to wool products. The sign "Woolmark" is the most positive factor for the owners of knitwear made from natural yarn.

Strengthening the mechanical impact of

The quality of washing can enhance various development companies. Most of them are aimed at better penetration of the detergent composition into the tissue, to help the agent act on the fibers to dissolve the contaminants.

The most common option - the supply of detergent from above. To this end, manufacturers have developed various grippers in the form of scoops, as well as shower systems that supply pressure and bubbles. Such simple developments really make washing much more effective.

Important! In the same vein, the inclined drum also works, which helps to shovel the laundry for its better penetration.

Optimization system

Many machine models use an optimization system that estimates the degree of contamination and, based on the problem, lengthens or shortens the washing.

The optimization system in various models of automatic machines can be called:

• "Sixth Sense" Whirlpool.
• EcoNavi Panasonic.
• FuzzyLogic.
• UseLogic Gorenje.
• EcoLogic Vestel.
• EasyLogic Ardo.

In modern machines, auto weighting is also increasingly used, which provides a flexible approach to every load of laundry. Thanks to the optimization system, you can not use the balance when throwing laundry in the car. The system will automatically assess the amount of items and the type of fabric automatically in order to determine the amount of water that this tissue can absorb.

Important! The washing machine pours water gradually and estimates the amount of free water not absorbed by the products. This number should exactly correspond to the index entered in the algorithm of each program. Thus, thanks to the optimization system, it is possible to dose the flow of water, electricity and detergent, since the machine itself will adjust how long the washing phase will last and how much resources it needs.

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Useful advices

According to experts, many consumers, choosing between the class "A" and "B", make their choice in favor of cheaper. The reason for this lies in the fact that the effectiveness and quality of washing affects not only the class, but also the quality of the powder plus the additional functionality of the unit.

It happens that the price for household appliances class "A" less popular manufacturer is much less than the price of a car class "B", manufactured by a more highly advertised company.

We hope that the information obtained will help you choose the right model of the washing machine. We advise when choosing a car to pay attention not only to the class of washing, but also to other criteria. Then you definitely will not have to doubt the correctness of your choice, and the washing machine will regularly cope with all the tasks for a long time.