BS EN 17130 pdf free download

BS EN 17130-2019 pdf free download.Textil les and textile products – Determination of dimethylfumarate (DMFu), method using gas chromatography.
5 Reagents
Unless otherwise specfied, analytical grade chemicals shall be used.
5.1 Dimethyl fumarate, CAS number 624-49-7, highest available defined purity standard,
5.2 Dimethyl maleate, CAS number 624-48-6, highest available defined purity standard,
5.3 Dimethyl fumarate-d2, CAS number 23057-98-9, highest available defined purity standard,
5.4 Acetone, CAS number 67-64-1,
5.5 Stock solutions and working solutions,
5.5.1 Internal standard – Stock solution (1 g/I]
Weigh (10土0,1) mg of Dimethyl fumarate-d2 (5.3) into a 10 ml volumetric flask and fill to the mark with acetone (5.4]. Transfer the content into an amber 10 ml vial with cap and keep in a refrigerator at about6 °C.
5.5.2 Internal standard – Working solution (1 mg/)
Prepare this solution by means of 1:1 000 dilution of the stock solution of internal standard (5.5.1) with
acetone (5.4).
5.5.3 Target compounds – Stock solution (1 g/I)
Weigh (50 t 0.1) mg of dimethyl fumarate (5.1) and (50土0,1) mg of dimethyl maleate (5.2) in a 50 ml volumetric flask, and fill to the mark with acetone (5.4].
5.5.4 Target compounds – Working solution (1 mg/I)
Prepare this solution by means of 1:1 000 dilution of the stock solution (5.5.3) with acetone (5.4).
6 Apparatus
The usual laboratory apparatus and laboratory glassware, according to EN IS0 4787, shall be used, in addition to the fllowing:
6.1 Analytical balance, with a precision of at least 0,1 mg
6.2 Glass vial, with screw cap that can be tightly sealed (eg volume of 40 m),
6.3 Ultrasonic bath, with adjustable temperature, suitable for operation at about 60*C,
6.4 PTFE membrane filter, with a pore size of 0,45 pm,
6.5 Amber glass vial, with screw cap that can be tightly sealed (eg volume of 10 m),
6.6 GC vials, with cap (eg volume of 2 m),
6.7 Activated magnesium silicate cartridge (2 g/6 ml)].
6.8 Gas Chromatograph with mass selective detector (GC-MS)，
6.9 Nitrogen evaporator, with conical tubes and with adjustable temperature, suitable for operation upto40C.
7 Sample preparation
7.1 Sampling
If possible, sampling is carried out according to EN IS0 5089.
7.2 Preparation of test specimens
The test specimen shall consist of a single material type (made of textile, leather, polymer or other organic material), which is tested separately.
NOTE
Up to three test specimens (of equal mass) of the same material type can be tested together taking into consideration the limits of detection and quantifcation.
Cut the homogenous textile [or leather or polymer or organic material) samples into pieces of about 0,3 cm to 0,5 cm edge length. Desiccant samples may be used without any processing.
B Procedures
8.1 Standard procedure – extraction
Weigh (1,0土0,1) g of the sample in a glass vial (6.2), record the mass to the nearest 1 mg, add 1 ml of the solution of internal standard (5.5.2) and 9 ml of acetone, and seal the vial. Extract the sample at (60+5)。C for 1 h土5 min in an ultrasonic bath.
WARNING一. Do not open the vial before cooling as the contents may be under pressure.
After cooling to below at least 27 °C, decant the solution and, if necessary, reduce to 1,0 ml under a gentle stream of nitrogen (6.9) at maximum 40 °C.
Filter this solution through a PTFE membrane filter (6.4).
Transfer an aliquot of the extract to a GC-MS vial (6.6) and seal with a cap.
8.2 Procedure for complex matrix
8.2.1 Extraction
Weigh (1,0土0,1) g of the sample in a glass vial (6.2), record the mass to the nearest 1 mg, add 1 ml of the solution of internal standard (5.5.2) and 9 ml of acetone, and seal the vial. Extract the sample at (60土5)。C for1 h土5 min in an ultrasonic bath.BS EN 17130 pdf download.