Plastics. Phenol-formaldehyde mouldings. Determination of free ammonia and ammonium compounds. Indophenol method1 Scope This International Standard specifies a colorimetric comparison method for the determination of the amount of ammonia and ammonium compounds in phenol formaldehyde mouldings. NOTE This International Standard does not provide an absolute measure of the amount of ammonia present. The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of foodstuffs in contact with the article has to be

Specifications for common fields

Food and feed producers and handlers

BS 5534 also does not cover the setting out and construction of special roof types such as curved or random slating

in balanced strategic land use planning and sustainable development

• The mechanism by which C# applications are invoked for use by a data-processing system

Methods of calculation

Choice of growth medium

measurement equipment

IEC 60034-18 (all parts)

colour and arrangement of emergency stop actuators

recommendations about how to apply DD 8788-3

BS EN 61326-2-1 includes more detailed test configurations