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BS 5734-4:1990

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Polyester moulding compounds for electrical and other purposes Specification for sheet moulding compounds for electrical purposes
Available format(s)

Hardcopy , PDF

Superseded date

25-05-2005

Language(s)

English

Published date

31-10-1990

Committees responsible
Foreword
Specification
1 Scope
2 Definitions
3 Classification
4 Composition
5 Preparation of test specimens
6 Conditioning of test specimens before testing
7 Properties
8 Mass per unit area and mass distribution
9 Glass content
10 Storage life
11 Marking
Appendices
A Test methods for additional properties that are
    subject to purchaser/supplier agreement
B Determination of water absorption
C Determination of resistance to tracking: simplified
    proof test for quality control purposes
D Determination of flexural strength at elevated
    temperature
Tables
1 Properties
2 Test methods for additional properties that are
    subject to purchaser/supplier agreement

Describes thermosetting polyester sheet moulding compounds classified according to their electrical and mechanical properties and further distinguished by their oxygen index. Compounds whose fibrous reinforcement includes materials other than E-glass are excluded.

Committee
PRI/42
DocumentType
Standard
Pages
10
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

IEC 60112:2003+AMD1:2009 CSV Method for the determination of the proof and the comparative tracking indices of solid insulating materials
BS 2782-3:Methods 320A to 320F:1976 Methods of testing plastics. Mechanical properties Tensile strength, elongation and elastic modulus
BS 5734-1:1990 Polyester moulding compounds for electrical and other purposes Methods of test
IEC 60243:1967 Recommended methods of test for electric strength of solid insulating materials at power frequencies
IEC 60167:1964 Methods of test for the determination of the insulation resistance of solid insulating materials
BS 2782-2.232(1983) : LATEST METHODS OF TESTING PLASTICS - ELECTRICAL PROPERTIES - DETERMINATION OF INSULATION RESISTANCE
BS 2782-2.220&221(1983) : LATEST METHODS OF TESTING PLASTICS - ELECTRICAL PROPERTIES - DETERMINATION OF ELECTRICAL STRENGTH: RAPIDLY APPLIED VOLTAGE METHOD AND STEP-BY-STEP METHOD
ISO 62:2008 Plastics Determination of water absorption
BS 2782-9 Method 902A:1977 Methods of testing plastics. Sampling and test specimen preparation Compression moulding test specimens of thermosetting materials
BS 2782-3 Method 335A:1978 Methods of testing plastics. Mechanical properties Determination of flexural properties of rigid plastics
ISO 179:1993 Plastics Determination of Charpy impact strength
ISO 178:2010 Plastics Determination of flexural properties
BS 2782-4.430A.D(1983) : 1983 METHODS OF TESTING PLASTICS - CHEMICAL PROPERTIES - DETERMINATION OF WATER AND BOILING WATER ABSORPTION AT 23 DEGREES C. DETERMINATION OF WATER AND BOILING WATER WITH ALLOWANCE OF WATER-SOLUBLE MATTER
BS 2782-6:Method 640A:1979 Methods of testing plastics. Dimensional properties Determination of shrinkage of test specimens in the form of bars of compression moulded thermosetting moulding materials

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