Textile pH Testing
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Note: this service is for Research Use Only and Not intended for clinical use.
The pH value is a safety index of textiles, and the standard requires a pH value of 4.0 to 9.0. Higher or lower pH value not only affects the performance of the textile itself, but also may cause certain harm to human health during the use of textile. The pH of human skin is between 4.5 and 6.0, and slightly acidic can protect the skin against bacteria and viruses. As people get older, their skin becomes more neutral and less antibacterial than before. Textiles that are neutral or slightly acidic are good for the human body. If the pH of textile is too high or too low, the skin surface is easily damaged.
pH Value Testing
pH value refers to the acid-base degree of the solution. The acid-base degree of the solution is expressed by the hydrogen ion concentration in the solution. pH value is the negative logarithm of the hydrogen ion concentration in the solution, which can be measured by indicators, test papers, reagents, etc. The pH value of textile water extracts can be measured with a pH meter.
pH Limits for Different Product Classes according to OEKO-TEX Standard 100
Product Classes | Ⅰ baby | Ⅱ In direct contact with skin | Ⅲ With no direct contact with skin | Ⅳ Decoration material |
|---|---|---|---|---|
| pH value | 4.0-7.5 | 4.0-7.5 | 4.0-9.0 | 4.0-9.0 |
Testing Standards
AATCC81-2016 pH of the Water-Extract from Wet Processed Textiles
ISO 3071:2005 Textiles — Determination of pH of Aqueous Extract
GB/T7573-2009 Textiles — Determination of pH of Aqueous Extract
Alfa Chemistry Testing Lab
As an authoritative testing organization with many years of experience, Alfa Chemistry Testing Lab has optimized a series of pH test methods and can provide pH testing for all types of fabrics, including but not limited to cotton, linen, silk, woolen fabric, leather fabric, chemical fiber fabric, blended fabric, modal fabric, etc., please consult our technical experts for details.
Do not know how to place an order, please refer to the flow chart shown below.
Submit quotation request |
A technical manager will contact you within 24 hours |
You will review and approve the final price and place an order |
Confirm with you and make the payment |
Instruct you to ship your samples and form |
Analytic report delivery |
