10 month, the online auto market did a phase? Volvo XC60 and Mercedes-Benz GLC's in-car health measurement, as soon as the report came out, got a good response on all major platforms. Many consumers didn't expect that this neglected health in the car actually affected the health of themselves and their families unconsciously. Therefore, the online auto market decided to launch the second phase of in-vehicle health measurement. This time, we bought two luxury SUVs, Audi Q5L and Cadillac XT5, at our own expense, and merged them with the previous models to form a four-car review. There are more contrasts between SUVs at the same level, which can also make everyone look more intuitive and clear. Without delay, let's take a look at the measured performance.

In the VOC national standard test, Volvo XC60 is still far ahead of other models.

Before releasing the data, the author briefly reviews "What is the national standard test of VOC?" . The full name of this test is HJ/T? 400-2007 "Sampling and Determination Methods of Volatile Organic Compounds and Aldehydes and Ketones in Cars" is the VOC detection being implemented in China, which can also be said to be the closest to consumers. Its biggest feature is that it takes a long time to test, and it needs to be tested continuously for 22 hours. During this period, harmful substances can be brought into full play, and the test is quite difficult.

In this issue, Volvo XC60 maintained its leading position in the previous issue, and Audi Q5L and Cadillac XT5 obviously did not pose much threat to this "Nordic health expert". Volvo XC60 achieved the best results in five tests of toluene, xylene, ethylbenzene, styrene and acrolein.

Among them, toluene is only one tenth of the fourth Audi Q5L. Interestingly, this gap is inversely proportional to the reputation of the interior of the two brands. Among benzene, formaldehyde and acetaldehyde, Volvo XC60 is slightly lower than Cadillac XT5 by 0.002, 0.002 and 0.0 16 respectively. Therefore, from the comprehensive performance, Volvo XC60 >；; Cadillac XT5> Mercedes-Benz GLC> Audi Q5L.

In the VOC international test, the second one is obviously not as good as the first one.

The last international VOC test attracted many readers' attention, because the test was carried out according to ISO 012219-12012, which was more complicated than the national VOC test, and added a high-temperature link with an ambient temperature of 65℃ for two hours. For the domestic "exposure car scene", it is difficult for consumers to see such a test, so it has quite high reference value.

Under the environmental mode that the test conditions are similar to the VOC national standard test, Volvo XC60 naturally won the first place in many projects, and benzene, toluene, formaldehyde and other projects all achieved the best results. Both tests have proved that Volvo's gold-lettered signboard of "no smell in the car" is not blown out.

In the static parking mode and dynamic driving mode of 65 degrees high temperature, the Audi Q5L and Cadillac XT5 in the second phase are not so satisfactory, and the values of many projects are much higher than those of the two models in the first phase. For example, in the parking environment-formaldehyde project, Cadillac XT5 scored 0. 135, Audi Q5L scored 0. 169, and Volvo XC60 scored 0.032, the former two were about 4-5 times of the latter. The acetaldehyde project has a bigger gap. The value of Audi Q5L is as high as 0.27 1, which is about 10 times that of Volvo XC60.

In the dynamic driving mode, many items of Volvo XC60 and Mercedes-Benz GLC in the first stage are nd (that is, below the measurement range), and benzene, toluene, ethylbenzene, xylene and phenylacetaldehyde all perform well. On the other hand, Audi Q5L and Cadillac XT5 have more or less some harmful substances volatilized, and formaldehyde and acetaldehyde are higher than the previous VOC national standard test.

To paraphrase the phrase "the physique of a car and a car cannot be generalized", many readers may think that most models, like the first Volvo, have a good performance at high temperatures without a second test. The author thinks that the performance of Audi Q5L and Cadillac XT5 is average, which may be because the international level test was not taken into account at the beginning of interior design. In particular, a special purpose vehicle for China like Audi Q5L will definitely not be considered according to international standards like Volvo's Nordic team, and more importantly, it will meet national standards.

In the banned substance test, the gap between the four luxury SUVs is becoming more and more obvious.

Prohibited substance testing is different from volatile organic compound testing. The former has a negative impact on passengers' health mainly through the more direct behavior of "touching". And because there are many materials in the car, it is impossible to discuss. Therefore, several representative items, 6 major items and 57 minor items were selected from 28 samples for comparison.

It is worth explaining in advance that the results of the second phase are exactly the same as those of the first phase in some projects. In the six major projects, the four major achievements of colorant, benzene, phenol amine and solvent are nd (that is, below the measurement range). At least in luxury SUVs, we don't have to worry about the harm of these four items, and the focus is still on the five categories of antimony, arsenic, barium, chromium and selenium related to heavy metals and ELV.

The rear center armrest cover is a typical plastic part, and the ELV project is a big item that reflects the gap between plastic parts. In this project, Mercedes-Benz is relatively not dominant. Mild harmful substances were detected in both PBBs and PBDEs. Volvo XC60, Audi Q5L and Cadillac XT5 were nd (that is, below the measurement range). The lead (Pb) project is also the highest of the four, and it seems that it needs to be improved.

Leather goods such as steering wheel covers are concentrated in five types of heavy metal projects. Volvo XC60 and Audi Q5L performed better than expected, and the five categories of projects are actually nd (that is, below the measurement range), which is very rare. However, both Mercedes-Benz GLC and Cadillac XT5 have chromium content, and 70 and 122 are a bit high.

Coincidentally, even in carpets and other textiles, once it can be detected, the value is relatively large. As can be seen from the table, the Volvo XC60 and Cadillac XT5 have been well received by nd (that is, below the measurement range). On the contrary, the barium content of Audi Q5L and Mercedes-Benz GLC is 127 and 67 respectively, which is obviously different.

Final summary

Among the four luxury SUVs, Mercedes-Benz GLC, through the comparison in the second stage, has a prominent gap in the item of prohibited substances, especially textile parts and plastic parts. The problem of two newcomers in the second phase-Audi Q5L and Cadillac XT5-lies in the international VOC test in high temperature environment. I don't know if it's a question of consideration, but it needs to be improved anyway. The performance of Volvo XC60 has no obvious shortcomings. No matter whether it is two VOC tests or banned substance tests, they have not exceeded the standard, and many values are also ahead, which is worthy of the health slogan promoted by manufacturers.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.