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自测甲醛小妙招 - Self testing formaldehyde tips

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如果大家准备装修的话,那么首先要考虑的就是是否会出现甲醛超标的情况。大家都知道,现在很多的装修材料当中,都富含甲醛这种有害物质。所以大家在装修完成之后,一定不要马上入住。最好是学会一些自测甲醛的方法,来查看房间当中的甲醛是否超标。自测甲醛小妙招分享给大家。

自测甲醛小妙招 - Self testing formaldehyde tips

① 甲醛自测盒

特点:操作方便快速;灵敏检测下限低;可现场自行操作。

甲醛自测盒一般由棕色瓶稀释剂、透明瓶显色剂以及一个装有粉末的反应盒组成。

检测前先将待检测房间门窗关闭一个小时,把稀释剂倒入反应盒中与反应物充分溶解,反应盒放于室内距地面80至150厘米高度位置,暴露30分钟后倒入显色剂,拧紧瓶盖后摇匀,静置10分钟后打开,对比自测盒比色色阶卡。

黄色基本不含甲醛,黄绿色偏黄也没超,黄绿色偏绿超标不严重,绿色超标有点多,蓝色则是超标。

这种方法虽然简便,但是准确率不能达到百分百,只能做个大概的测试。

② 电化学分析法

电化学分析法是基于化学反应中产生的电流(伏安法)、电量(库仑法)、电位(电位法)的变化,判断反应体系中分析物的浓度进行定量分析的方法,用于甲醛检测的有极谱法和电位法两种。

分光光度法是基于不同分子结构的物质对电磁辐射的选择性吸收而建立的一种定性、定量分析方法,是居室、纺织品、食品中甲醛检测最常规的一种方法。

色谱法具有强大的分离效能,不易受样品基质和试剂颜色的干扰,对复杂样品的检测灵敏、准确,可直接用于居室、纺织品、食品中对甲醛的分析检测。

自测甲醛小妙招 - Self testing formaldehyde tips

③ 家用甲醛检测仪

甲醛检测方法之传感器--用于检测甲醛的传感器有电化学传感器、光学传感器和光生化传感器等。

家用甲醛检测仪采用炜盛科技电化学甲醛传感器,实时地将空气中甲醛浓度信号直接转化为电信号,通过微电脑进行数据处理后,以LCD数字方式显示测量结果。

ZE08-CH2O甲醛传感器模组

将甲醛检测仪放在检测环境中,或者与涂料等检测物放在同一个密闭空间内,等待5~10分钟,甲醛检测仪显示屏的数值便会显示实时甲醛浓度,并不断变化。用此种方式检测出的结果相对准确。

④ 甲醛检测机构

请专业的甲醛检测机构来做室内环境检测这一方法适合企业、单位以及对环保相对比较关注的家庭等,新房子装修好要入住之前最好委托专业机构做一次室内环境检测。

此种检测方法,检测效果最有公信力,但检测时间较长,费用较高,同时也不能完全保证检测机构的专业与正规性。

当然, 除了小编以上的几种甲醛检测的普及,还有大家普遍在做的方式。

自测甲醛小妙招 - Self testing formaldehyde tips

⑤植物除甲醛法,如吊兰、虎尾兰、常春藤、绿萝。

⑥颗粒状活性碳除甲醛法,这种方法同样适用于装修完没有异味的家庭,因为有些有害物是无色无味的。

⑦开窗通风法,通风法就是通过空气的流动,将有害气体排到室外,这是一种简单有效的方法,唯一不足之处是甲醛释放周期长,一般要三年到十五年。

综上,方法很多,但是最根本的方法还在于源头去甲醛,尽量做到所有装修物料及家具购买符合规格的,同时在符合规格的基础上再次通过小编以上介绍的方法进行检测,效果也会相对更好。


Reading guide

If everyone is ready to decorate, then the first thing to consider is whether formaldehyde will appear in excess of the situation. As we all know, many decorating materials are now rich in formaldehyde. So after finishing the decoration, we must not check in immediately. It is best to learn some methods of self testing formaldehyde to check whether the formaldehyde in the room exceeds the standard. Let me share with you a little bit of formaldehyde.

自测甲醛小妙招 - Self testing formaldehyde tips (formaldehyde) self test box

Features: easy and fast operation, low sensitivity and low self limit.

Formaldehyde self-test box is generally composed of brown bottle diluent, transparent bottle developer and a reaction box containing powder.

Before testing, close the door and window of the room to be tested for an hour, pour diluent into the reaction box and fully dissolve the reactant. The reaction box is placed indoors at a height of 80 to 150 cm from the ground. After 30 minutes of exposure, pour in the reagent, tighten the bottle cap and shake it evenly. After standing for 10 minutes, open the color grading card of the self-test box.

Yellow basically does not contain formaldehyde, yellow-green to yellow is not exceeded, yellow-green to green exceeded not serious, green exceeded a little more, blue is exceeded.

Although this method is simple, but the accuracy can not reach 100 percent, can only do a rough test.

Electrochemical analysis

The electrochemical analysis method is based on the change of current (voltammetry), electric quantity (coulomb method) and potential (potentiometric method) produced in the chemical reaction to determine the concentration of the analyte in the reaction system for quantitative analysis.

Spectrophotometry is a qualitative and quantitative analysis method based on the selective absorption of electromagnetic radiation by substances with different molecular structures. It is the most common method for the determination of formaldehyde in rooms, textiles and food.

Chromatography has powerful separation efficiency and is not easily disturbed by sample matrix and reagent color. It is sensitive and accurate to detect complex samples. It can be directly used for the analysis and detection of formaldehyde in rooms, textiles and food.

自测甲醛小妙招 - Self testing formaldehyde tips (3) household formaldehyde detector

Sensors for formaldehyde detection include electrochemical sensors, optical sensors and photobiochemical sensors.

Household formaldehyde detector uses Weisheng technology electrochemical formaldehyde sensor, real-time formaldehyde concentration signal in the air is directly converted into electrical signals, through the microcomputer data processing, LCD digital display measurement results.

ZE08-CH2O formaldehyde sensor module

When the formaldehyde detector is placed in the testing environment, or in the same closed space with the coating and other detectors, waiting for 5 to 10 minutes, the value of the formaldehyde detector display screen will show real-time formaldehyde concentration, and constantly changing. The results detected in this way are relatively accurate.

Formaldehyde detection agency

Invite professional formaldehyde testing institutions to do indoor environmental testing this method is suitable for enterprises, units and relatively concerned about environmental protection of the family, etc., the new house decoration to stay before the best entrusted to a professional agency to do indoor environmental testing.

This kind of testing method has the most credible testing effect, but the testing time is longer, the cost is higher, and can not completely guarantee the professional and formal testing institutions.

Of course, in addition to the popularity of several kinds of formaldehyde detection, and we are generally doing the way.

自测甲醛小妙招 - Self testing formaldehyde tips. Plant except formaldehyde, such as Chlorophytum, tiger, orchid, ivy, and green.

_Granular activated carbon formaldehyde removal method, this method is also applicable to decoration without odor family, because some harmful substances are colorless and odorless.

_Opening the window ventilation method, ventilation method is through the flow of air, harmful gas will be discharged outdoors, this is a simple and effective method, the only drawback is that the formaldehyde release cycle is long, generally takes three to fifteen years.

In summary, there are many methods, but the most fundamental method is still the source of formaldehyde, as far as possible to achieve all decoration materials and furniture to buy conformity to specifications, while in conformity with the specifications on the basis of again through the method described above in small series, the effect will be relatively better.

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