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The National Standard &Nbsp For The Determination Of Peculiar Smell Of Wadding Fiber Products Fills In The Blank Of Testing Field.

2010/9/27 17:56:00 52

National Standard For Testing Textile Fiber Products

Many people smell smell when they buy clothes and bedding.

textile

And flocculation

fibre

The national standard of products also put forward requirements for odor detection items, but there are no specific testing methods to detect odor items.

In July 2010, the national standard for the determination of odor of wadding fiber products was filled in this field.

It is understood that China's mandatory

National standard

The standards of basic safety technology for national textile products, general technical requirements for fibrous products and technical requirements for ecological textiles require odor testing, including mouldy flavor, high boiling oil flavor (gasoline flavor, kerosene flavor, diesel flavor, etc.), fishy smell, aromatic hydrocarbon flavor, unwashed animal fiber smell, smell of smell and so on.

about

Peculiar smell

This reflects the importance of fiber and fiber products quality.

Technical index

It is tested by the method of artificial sensory examination.

In such subjective tests, the correct understanding, familiarity, mastery of inspection methods and individual factors will have a greater impact on the test results.

Although the standards require inspection personnel to be trained, but because of the short time in the country, the experience of inspectors is relatively insufficient, and there are some problems in odor detection.

What is the smell of standard mildew and fishy smell? The standard sample of fiber and fiber products odors released in February 2009 is

standard

The national standard of "odor" samples.

The inspector sniffed the standard samples, and then checked the samples tested according to the relevant requirements.

Of course, it is not necessary to smell the standard samples for each test, but it is necessary to calibrate the olfaction using standard samples as required.

With the increasing use of the standard samples of fiber and fiber products, the China Fiber Inspection Bureau has completed the national standard for the determination of the peculiar smell of floc products with other laboratories, which fills the gap in the detection field.

According to the briefing, the standard is jointly completed by the national fiber quality supervision and inspection center, Guangzhou fiber products testing institute and Chongqing fiber textile inspection institute.

The survey showed that the problem of odor detection was mainly detected in the same laboratory in the same sample, and the results of different personnel were different.

The first reason is that some of the inspectors do not know deeply about the smell, and do not know clearly. Two, the sensitivity of different personnel to odor is different, and the intensity of odor is different. Three, there is no detailed description of the odor detection method, and there are no strict restrictions on the environmental conditions of the detection. The peculiar smell is caused by volatilization of some substances in the fiber and its products into the air, and the degree of volatilization is different at different temperatures, and the severity of odor is different.

According to Zhou Shuo, the standard draftsman and the state fiber quality supervision and inspection center, requirements for laboratory equipment and materials, testing environment, sample preparation and inspection procedures are important prerequisites for sensory inspection accuracy.

In particular, detailed requirements were made for the testing personnel, and it was stipulated that 2~3 deep breaths should be taken into the detection environment and then wait for 10 seconds to suit the testing environment.

In addition, the requirements for the olfactory calibration of the test personnel were put forward. The test personnel who had been engaged in the project for a long time were required to perform a olfactory calibration once a month. The test personnel should be shortened when the test time was changed or the disease was not detected for a long time.

This standard can be combined with "standard samples of fiber and fiber products odor", which can improve the inspectors' discrimination on the types of odor peculiar to the fiber products, including the textiles, and unify the strength of odor and improve the accuracy of odor detection.