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Anonymous users2024-01-24Buy an SGS formaldehyde sampling box. The detection principle is the same as that of chromatography in the national standard method GB T 18883-2002, formaldehyde reacts with 2,4-DNPH to form stable formaldehyde hydrazone, which is then analyzed by liquid chromatography (similar analytical instruments are used with the US Environmental Protection Agency). The method validation was also completed in the form of a comparison test with the national standard method.
Compared with the national standard method, it is more flexible to use.
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Anonymous users2024-01-23At present, there are many methods used for formaldehyde pollution detection, formaldehyde self-test boxes, household formaldehyde detectors, and entrusted formaldehyde testing institutions.
1. Formaldehyde self-test box: convenient and affordable, quantitative indefinite, poor accuracy, and relatively inaccurate.
2. Household formaldehyde detector: detect formaldehyde content at any time, which is more timely and convenient to avoid being fooled. The disadvantage is that the accuracy of most domestic household formaldehyde detectors is not high.
3. Entrust a formaldehyde testing agency: pay attention to identify whether it has CMA testing qualifications, and the data is relatively accurate.
4. Or you can choose to govern by yourself, buy some Diarin spray, it doesn't matter.
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Anonymous users2024-01-22The simplest thing is whether there is a pungent smell.
Whether the furniture has volatile formaldehyde and use SGS to collect air samples and send them to SGS institutions for testing, the price is not expensive, and it is more reassuring to do it.
You have a few days to order, if the manufacturer has just produced the general smell of paint is normal, as long as you are in the case of window ventilation can generally be eliminated in about a week, such as more than a month has not removed the smell you have to pay attention to, you can take it to the professional authority of the department for formaldehyde testing, if it is indeed formaldehyde exceeding the standard, you can call 12315 for complaints and claims.
The practice of judging by smell alone is unscientific. In addition to formaldehyde, there are many other factors that release odors, such as TVOC, benzene, xylene, etc., which can also cause strong odors. Therefore, if the furniture smells strong, it cannot be simply judged that the formaldehyde emission exceeds the standard.
At present, the home on the market is divided into solid wood and board. Relatively speaking, solid wood is more environmentally friendly than boards, but it does not mean that solid wood is necessarily environmentally friendly, and boards are not environmentally friendly. If the taste is relatively choking, it is possible that the formaldehyde exceeds the standard. >>>More
The smell of paint is likely to be excessive formaldehyde, so as long as there is a large smell after painting, it should be handled with special caution.