Plastics. Polymer dispersions. Determination of free formaldehyde1 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

various types of admixtures are used as additives in concrete

What is BS EN 13501-4 - Components of smoke control systems about

supplies up to 120 V or a

or other components

g) installations where the inclination of the guide rails to the vertical exceeds 15°

as specified in EN 10263‑2

A format has been developed which defines a directory structure and the exchange information as ASCII files

BS EN 1212 provides you with the characteristics and specifies the requirements and the corresponding test methods for sodium polyphosphate

it’s now common practice to use wider cavities in cavity walls

In particular it covers circumstances where higher voltages are encountered and as such specifies cables that are suitable for more demanding applications

tube diameter and tube wall thickness (see EN 4814)

BS EN 60060-2 provides you with the following: