The determination of formaldehyde content is one of the more complex textile testing projects at present, involving the basic theory of chemical analysis and a variety of basic operation skills, which is very difficult for general testers who have not been trained in systematic chemical analysis. 【Relevant Standards】

GB/T 2912.1-2009 Textiles – Determination of formaldehyde – Part 1: Free hydrolyzed formaldehyde (water extraction method) GB/T 18401-2010 National basic safety technical specification for textile products

【Scope of application】: The determination of formaldehyde content is one of the more complex textile testing projects at present, involving the basic theory of chemical analysis and a variety of basic operation skills, which is very difficult for general testers who have not been trained in systematic chemical analysis. [Meet the standard]: GB/T 2912.1-2009 Textiles – Determination of formaldehyde – Part 1: Free hydrolyzed formaldehyde (water extraction method) GB/T 18401-2010 National Technical Specification for Basic Safety of Textile Products [Instrument features]: 1. The national standard method (GB/T2912.1-2009) can display the formaldehyde determination value and absorbance value at the same time. 2. There is no need to prepare and calibrate formaldehyde standard solutions, and there is no need to draw working curves. 3. It is controlled by a microcontroller and has the function of automatic processing of spectral data. 4. The chemical reagent package has a long shelf life (1 year) and a small amount of samples and reagents, which can reduce and prevent secondary pollution. 5. Large screen Chinese display, human-computer interaction operation, small size, light weight, easy operation. The host comes with a battery, which can be carried for on-site testing. 【Technical Parameters】: 1. Measurement range 0.00~500.00 mg/kg (Sample dilution 10-fold up to 5000 mg/kg) 2. Measurement accuracy ≤5％ 3. Measurement method National standard acetylacetone method (GB/T2912.1-2009) 4. Light source Ultra-bright light-emitting diode with a wavelength of 412nm 5. Working environment temperature 5~40℃ 6. Main unit weight  2kg 【Test Principle】: After accurate weighing, the textile sample is extracted in a water bath at 40°C for a certain period of time, and the formaldehyde extracted from the fabric is absorbed by water, and then the extract solution is colored with acetylacetone (yellow), which is selectively absorbed by visible light, so the colorimetric analysis method can be used to measure the formaldehyde content in the tested sample on the textile formaldehyde tester.