Plastics. Determination of the ultimate anaerobic biodegradation of plastic materials in an aqueous system. Method by measurement of biogas production1 Scope This International Standard specifies a method for the determination of the ultimate anaerobic biodegradability of plastics by anaerobic microorganisms. The conditions described in this International Standard do not necessarily correspond to the optimum conditions for the maximum degree of biodegradation to occur. The test calls for exposure of the test material to sludge for a period of up to 90 d, which is longer than the normal sludge

This European Standard does not apply to chests manufactured before the publication date of this European Standard

NOTE: BS EN 455-2 does not specify the size of a lot

BS 8485 on methane and carbon dioxide ground gases is useful for:

Its purpose is to detail the methodology of ISO 5725‑1:1994

the surface tension of the condensate is low

surface smoothness

Type of grinder Wheel size 125 mm (5'') 230 mm (9'') Pneumatic Without auto-balancing unit With auto-balancing unit Electric With auto-balancing unit Without auto-balancing unit

This document excludes refrigerated storage

1 A phased approach to projects

Active infeed converters are generally connected between the electrical power supply network (a

Contents of BS EN 4127:

BS EN 15470:2017 includes some changes with respect to EN 15470:2007