BS 2782-10:Method 1002:1977

This standard BS 2782-10:Method 1002:1977 Methods of testing plastics. Glass reinforced plastics is classified in these ICS categories:

• 83.120 Reinforced plastics

This standard describes a method for determining the loss on ignition of glass reinforced plastics.

1.1 If the material to be tested contains only glass and a resin which is completely combustible (under the conditions of this test method), the loss on ignition is equal to the resin content (see note below). The glass content may then be calculated by difference.

1.2 In the case of products which contain non-combustible mineral fillers, other than glass reinforcement, or resins which are incompletely combustible (under the conditions of this test method), the presence of which materials can be recognized or verified by examination of the residue after ignition, this method only allows the determination of the ash by difference.

NOTE The glass used as a reinforcement is usually coated with ancillary products (sizing, finish, etc.) which most often are completely eliminated during calcination and therefore included in the loss on ignition.