Nondestructive testing device of formaldehyde emission from furniture product and nondestructive testing method thereof

A formaldehyde emission and non-destructive testing technology, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of high operating cost, large consumption of manpower, material resources and energy, and high cost, and achieve low environmental requirements, wide application range and low detection cost Effect

Inactive Publication Date: 2009-09-09
浙江方圆检测集团股份有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Among them, the detection method of formaldehyde emission in the GB 18584-2001 national standard is to sample according to the proportion of furniture materials, and the sampling quantity is 150mm×50mm×10 pieces, so the whole furniture needs to be destroyed, and the reproducibility of the test results is relatively poor
The QB1952.2-2004 standard only stipulates the release of free formaldehyde. The test is to take a 500mm×800mm sample on the mattress for the test. After the test, the mattress is also damaged and cannot be used.
In this way, on the one hand, resources are wasted, and the cost of testing for enterprises is increased, which cannot truly reflect the release of harmful substances in furniture products. On the other hand, consumers cannot accurately know whether the release of harmful substances in the prod

Method used

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  • Nondestructive testing device of formaldehyde emission from furniture product and nondestructive testing method thereof
  • Nondestructive testing device of formaldehyde emission from furniture product and nondestructive testing method thereof

Examples

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Example Embodiment

[0023] Example 1:

[0024] like figure 1 As shown, the non-destructive testing device for formaldehyde emission of furniture products includes a telescopic bracket that can be adjusted according to the volume and shape of the product to be tested. The bracket includes 4 vertically arranged telescopic rod legs 4 and 4 horizontally arranged telescopic rods. Ejector rod 2, wherein each telescopic rod support foot 4 is plugged with two adjacent telescopic rod push rods 2 through a three-way joint 3, the support is covered with a PVC film 1, and the two adjacent telescopic rod support legs 4 is provided with the sealing piece 5 that is used for compressing PVC film 1 to form the airtight space in PVC film.

[0025] The method for non-destructive testing of furniture products using the above-mentioned non-destructive testing device for formaldehyde emission of furniture products includes the following steps:

[0026] (1) According to the volume and shape of the tested product tabl...

Example Embodiment

[0037] Example 2:

[0038] like figure 1 As shown, the non-destructive testing device for formaldehyde emission of furniture products includes a telescopic bracket that can be adjusted according to the volume and shape of the product to be tested. The bracket includes 4 vertically arranged telescopic rod legs 4 and 4 horizontally arranged telescopic rods. Ejector rod 2, wherein each telescopic rod support foot 4 is plugged with two adjacent telescopic rod push rods 2 through a three-way joint 3, the support is covered with a PVC film 1, and the two adjacent telescopic rod support legs 4 is provided with the sealing piece 5 that is used for compressing PVC film 1 to form the airtight space in PVC film.

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Abstract

The invention relates to a nondestructive testing device of formaldehyde emission from furniture product and a nondestructive testing method thereof. The nondestructive testing device comprises an adjustable telescoping bracket, the bracket is externally covered with a PVC film, and seal plates are arranged between two adjacent telescoping bracket feet for compressing the PVC film to form airtight space inside the PVC film. The nondestructive testing method comprising the following steps: (1) the to-be-detected product is arranged in the airtight space formed by the PVC film, the telescoping bracket and the seal plates; (2) an absorption vessel with distilled water is arranged right below the to-be-detected product for 8-12 hours; (3) the absorption vessel is taken out, and acetylacetone spectrophotometry is carried out on the absorption liquid inside the vessel to detect the concentration of formaldehyde. The nondestructive testing device has the advantages of reasonable structure, low manufacture cost and strong adaptability; can be adjusted according to the volume and shape of the furniture product, and can obtain the formaldehyde emission data of furniture product without destroying furniture product; in addition, the nondestructive testing device has good reproducibility of testing results, and can actually reflect the formaldehyde emission condition in practical use.

Description

technical field [0001] The invention relates to a test device and a detection method for formaldehyde emission of furniture products, in particular to a nondestructive detection device and a nondestructive detection method for formaldehyde emission of furniture products. Background technique [0002] At present, the methods for detecting formaldehyde emission from domestic furniture are only the dryer method in GB 18584-2001 "Limits of Harmful Substances in Wooden Furniture for Interior Decoration Materials" and the climate chamber in QB1952.2-2004 "Soft Furniture Spring Mattress" Law. Among them, the detection method of formaldehyde emission in GB 18584-2001 national standard is to sample according to the proportion of furniture materials, and the sampling quantity is 150mm×50mm×10 pieces, so the whole furniture needs to be destroyed, and the reproducibility of test results is relatively poor. The QB1952.2-2004 standard only stipulates the amount of free formaldehyde relea...

Claims

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Application Information

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IPC IPC(8): G01N21/31
Inventor 梁米加陈自力汤玉训张毕蒙江俊沈炳富
Owner 浙江方圆检测集团股份有限公司
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