Textile formaldehyde content tester

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Whats/App: +86 181 0160 0864

The Textile Formaldehyde Content Tester is a precision instrument designed to determine the formaldehyde levels in textiles, including fabrics and finished garments. It employs chemical extraction and colorimetric methods (e.g., Nessler reagent reaction) to accurately quantify free and hydrolyzed formaldehyde content, ensuring compliance with national and international textile safety standards. The instrument supports high-throughput testing, data storage, and automated wavelength calibration for reliable and repeatable results.

Application

This tester is widely used in:

Textile manufacturing and processing factories for quality control.

Garment production lines to ensure finished products meet formaldehyde safety standards.

Textile laboratories for research and development of safe, low-formaldehyde fabrics.

Inspection and testing agencies verifying compliance with regulatory standards.

Educational institutions for textile chemistry and safety training.

Standards

The instrument is compliant with:

GB/T 2912 – Textiles: Determination of formaldehyde – Part 1: Free and hydrolyzed formaldehyde

AATCC 112 – Textiles: Determination of formaldehyde – Vapor absorption method

BS 6806 – Textile formaldehyde testing

DIN EN ISO 14184-2 – Textiles: Determination of formaldehyde – Part 2: Released formaldehyde (vapor absorption method)

Relevant Chinese national standards: GB 18401-2003. GB/T 23328-2009. GB/T 2664-2009. GB/T 2665-2009. GB/T 2666-2009. GB/T 23314-2009

Features

(1) Large 128×64 dot-matrix LCD display for clear and accurate readings.

(2) Continuous testing with storage of up to 200 data sets; each screen displays 5 sets.

(3) Supports C mode (multi-point standard curve method) and F mode (coefficient method) for flexible analysis.

(4) Power-off memory ensures stored data and standard curves are preserved.

(5) Automatic wavelength calibration, deviation self-repair, and automated settings.

(6) Dual light sources: deuterium lamp and long-life tungsten lamp for UV and visible spectrum.

(7) Standard USB data output interface and parallel print output for easy reporting and integration.

(8) Quantitative analysis software included for direct photometric analysis and data processing.

Parameters

Parameter	Specification
Wavelength Range	190–1000 nm
Spectral Bandwidth	4 nm or 2 nm optional
Wavelength Accuracy	±1 nm
Wavelength Repeatability	≤0.3 nm
Wavelength Setting	Automatic
Wavelength Resolution	0.1 nm
Luminosity Accuracy	±0.5% T
Photometric Repeatability	≤0.2% T
Stray Light	≤0.05% T
Data Output	USB interface
Stability	±0.001 A/h (at 500 nm after preheating)
Luminosity Range	0–200% T, -0.3–3A, 0–9999C
Print Output	Parallel port
Display System	128×64 bit LCD
Light Source	Imported long-life tungsten lamp & deuterium lamp
Detector	Imported silicon photodiode

Accessories

Standard USB data cable.

Parallel printer connection.

Quantitative analysis software for photometric data processing.

User manual and calibration guidelines.

Test Procedures

(1) Prepare textile sample and extract formaldehyde using water or standard reagent.

(2) React extracted solution with Nessler reagent.

(3) Insert sample solution into the tester cuvette.

(4) Select appropriate test mode (C mode or F mode).

(5) Start the test; instrument measures absorbance and calculates formaldehyde content.

(6) Store results in memory or export via USB/print report.

(7) Repeat for additional textile samples.

Maintenance

Regularly check and replace tungsten and deuterium lamps as needed.

Keep cuvettes and optical path clean to avoid measurement errors.

Calibrate instrument using standard formaldehyde solutions periodically.

Store in a dry, dust-free environment; avoid direct sunlight.

Ensure stable AC power to maintain accuracy and prevent electrical damage.

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