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BS EN 17131:2019 pdf free.Textiles and textile products - Determination of dimethylformamide (DMF), method using gas chromatography. 4 Principle of method The sample is cut into small pieces and extracted with methanol, in a sealed vial at 70°C, in an ultrasonic bath. An aliquot of the extract is analysed using a gas chromatograph with mass selective detector (GC-MS). 5 Reagents...

BS EN 17130:2019 pdf free.Textiles and textile products - Determination of dimethylfumarate (DMFu), method using gas chromatography. The sample is cut into small pieces and extracted with acetone in a sealed vial at a defined temperature in an ultrasonic bath. Two different procedures are proposed to be used, depending on the material being tested: a) the first procedure, without purification...