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Specification for phenolic moulding materials
1.1 General
This International Standard specifies requirements for the physical and chemical properties of phenolic moulding materials, classified by type and grade according to their use and properties.
1.2 Types
Four types of phenolic moulding material are specified, as follows:
1.3 Filler
The type of filler to be used in each type of phenolic moulding material is not specified but is usually as shown in the following examples:
| Type of moulding material | Filler |
| A | Wood flour |
| C | Mineral filler |
| D | Cotton |
| E | Mica |
1.4 Resin
Abbreviations are used to indicate the type of phenolic resin, as follows:
1.5 Grades
The various types of material are further sub-divided into grades based on the property levels and requirements.
EXAMPLE
PF 2A1 is a phenolic moulding material made from two-step resin, intended for general applications. The last digit indicates a particular grade of one type of material.
1.6 Classification
Table 1 shows the types and the grades of phenolic moulding material covered by this International Standard, together with their applications and distinguishing properties.
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