Plastics. Polymer dispersions. Determination of free formaldehyde Ingestion-build-67170 Nationally Determined Parameters specified in

Nationally Determined Parameters specified in NA to BS EN 1992-4 recognizes the responsibility of regulatory authorities

S3XXXX and S4XXXX series

Reciprocating positive displacement pumps

BS 5421-2 describes eight methods of test for polyurethane thread (elastane yarn):

Test sieves of metal wire cloth having aperture sizes below 4 mm down to 0

Plastics. Polymer dispersions. Determination of free formaldehyde Ingestion-build-67170 Nationally Determined Parameters specified in1 Scope This International Standard describes two methods for the determination of free formaldehyde (HCHO) in polymer dispersions. The procedure has been evaluated using acrylic, acrylonitrile butadiene, carboxylated styrenebutadiene and vinyl acetate polymer dispersions. Both test methods may also be applicable to polymer dispersions of other compositions. Method A is the preferred method for polymer dispersions with a free formaldehyde content