Detection Of Formaldehyde Residual Content In Textiles

Detection of formaldehyde residual content in textiles

2018-11-22 18:26:54

There is residual formaldehyde in the textile. Under the action of temperature and humidity, formaldehyde will be released to different extents. During the storage and use of textiles, formaldehyde can enter the human body through breathing and skin contact, causing various diseases and even causing diseases. Textile Formaldehyde Content Tester can detect textile formaldehyde residues.

The following factors must be noted when testing the formaldehyde content of textiles.

1.Laboratory environmental conditions

The laboratory atmosphere should be the standard atmosphere for the experiment, and the non-standard atmosphere will affect the test data.

2.Representative sampling and storage of samples

Sampling of cloth, sampling of garments, and storage of samples will affect the accuracy and objectivity of formaldehyde content detection data.

3.Quality of medicine

The color of acetylacetone has a great influence on the absorbance of the blank test, and the sensitivity of the Nessler reagent varies slightly with time.

4.Production of formaldehyde standard curve

Whether the standard solution is accurate is the key to the detection, so it should be standardized, strict and strict in the process of preparation, calibration, storage and use.

The calibration solution should be configured with at least 5 concentrations of solution and should be prepared to a standard concentration gradient.

5.Extraction temperature and time

The standard specifies extraction in a 40 ± 2 ° C water bath for 60 ± 5 min. The extraction time and temperature should be strictly in accordance with the method standards.

6.Operator accuracy

The operator will influence the test data during the experimental operation, which requires the operator to operate the specification and rigor, and minimize the human error.

7.AVENO AG37 Textile Formaldehyde Content Tester Applicable Standard

GB/T 2912.1, GB/T 19941, ISO 14184-1/2, AATCC 112

AVENO Machine Recommend:

AG37 Textile Formaldehyde Content Tester