Xiao Wu, a security officer who just joined the company, received a task from his superior: "The front-line employees have reported that the quality of the cut-resistant gloves they are using now is not good and they are easy to wear. You can find some more cut-resistant gloves."

Xiao Wu thought about it. There are so many types of cut-resistant gloves on the market.

Xiao Wu first went to the production site to get a pair of "cut-resistant gloves". He found that the words "CE" were printed on the back of the cut-resistant gloves. Does "CE" mean some kind of certificate? To figure out what "CE" means, he gathered the following information.

The "CE" mark is a safety certification mark and is regarded as a passport for manufacturers to open and enter the European market. CE stands for CONFORMITE EUROPEENNE.

It turns out that CE means European standard, so in addition to complying with European standard, what other standards do cut-resistant gloves need to abide by?

Protective gloves against mechanical hazards mainly follow the European standard EN 388, the latest version is the 2016 version, and the American standard ANSI/ISEA 105, the latest version is also 2016.

The two standards express different ways of expressing the grade of cut resistance.

With EU-certified cut-resistant gloves, there will be a shield graphic with the words "EN 388" on it. There are 4 or 6 digits and letters under the shield graphics. If it is 6 digits and letters, it means that the latest EN 388:2016 standard is used. If it is 4 digits, it means that the old 2003 standard is used.

The first 4 digits have the same meaning, namely "wear resistance", "cut resistance", "tear resistance" and "puncture resistance". The larger the number, the better the performance.

The fifth letter also means "cut resistance", but the test method is different from the test method of the second digit, and the way of expressing the cut resistance grade is also different, which will be described in detail later.

The sixth letter means "impact resistance", which is also expressed in letters. But there will only be a sixth digit if the shock test is carried out, and if not, there will be only five digits.

Although the 2016 version of the European standard has been used for more than 4 years, there are still many older versions of gloves on the market. The cut-resistant gloves certified by the new and old standards are all qualified gloves, but it is more recommended to buy cut-resistant gloves that use 6-digit numbers and letters to indicate the performance of the gloves.

After checking the European standard, the curious Xiao Wu went to check the American standard again.

In 2016, American Standard ANSI 105 has also undergone an update. The original cut resistance rating was represented by 1-5 in the shield graphic, and now it is represented by "A1" to "A9". Similarly, the larger the number, the higher the cut resistance level.

But why update the classification method from 5 levels to 9 levels?

The reason is that with the birth of more new materials, careful classification is required to represent the cut resistance of gloves. In the new grading method, A1-A3 is basically the same as the original 1-3, but A4-A9 is compared with the original 4-5. The range of the original 2 grades is divided by 6 grades, which can resist the gloves' resistance. Circumcision for a finer graded expression.

In the ANSI standard, it is not only the expression of grades that is updated, but also the test methods. The original test used the ASTM F1790-05 standard, which allows testing on a TDM-100 machine (the test method is called TDM TEST) or a CPPT machine (the test method is called COUP TEST), and now uses the ASTM F2992-15 standard, which only allows the use of TDM TEST to test.

Xiao Wu fell into new doubts again, what is the difference between TDM TEST and COUP TEST?

COUP TEST is rolling and cutting on the glove material with a circular blade with a pressure of 5 N, while TDM TEST is cutting back and forth horizontally with the blade pressed on the glove material at different pressures at a speed of 2.5 mm/s.

Although the new European standard EN 388 stipulates that two test methods, COUP TEST and TDM TEST, can be used, but under COUP TEST, if it is a high-performance anti-cutting material, the circular blade may become dull. If the blade is calculated to be dull, a TDM TEST is forced.

It should be noted that if this high-performance cut-resistant glove undergoes TDM TEST, an "X" can be written on the second digit of the certification graphic, and the cut resistance is only represented by the fifth letter.

If it is not a high-performance cut-resistant glove, the glove material is unlikely to dull the blade of COUP TEST, and TDM TEST can be omitted at this time, which is indicated by an "X" on the fifth digit of the certification graphic.

Non-high performance cut resistant glove material, not TDM TEST nor impact tested.

High performance cut resistant glove material, TDM TEST tested, not COUP TEST and impact resistance tested.

Based on the information found above, Xiao Wu listed the table above, and finally figured out the test method and protection level of cutting, but new questions followed. Is there a corresponding relationship between the classification of American standard and European standard? ? Is there a correspondence between the old standard and the new standard?

The picture below will explain it clearly~

If we simply divide the anti-cut grades, A1-A3 of the American standard and AC of the European standard belong to the lower anti-cut protection level, A4-A5 of the American standard and E of the European standard belong to the medium cutting protection level, A6-A9 of the American standard and the European standard of A6-A9 The target F belongs to the higher cutting protection level.

The standards and cut-resistant grades have been sorted out, but how to choose the appropriate cut-resistant gloves according to the production situation? Xiao Wu was still stuck on the crucial last step.

At this moment, Xiao Wu found a free live sharing class of "Multi-hazard Hand Protection Practice" on the [BEEREE School] applet.

This sharing class not only explains how to choose the right cut-resistant gloves, but also analyzes in detail how to choose hand protection correctly when there are both chemical hazards and physical hazards!

This sharing class is taught by senior BEEREE student Wang Weichao (who has obtained the CSP certificate). The duration is only 40 minutes, but it is full of dry goods! After completing the study, you can also get continuing education hours or maintenance credits for CIH & CSP registration and maintenance!

What are you waiting for? Scan the poster applet code below to get it!

If you gain something from it, you are also welcome to forward this free sharing class to your colleagues and friends~ Let us grow together and make progress together~