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BS EN IEC 61249-6-3:2023

BS EN IEC 61249-6-3:2023

$142.49

Materials for printed boards and other interconnecting structures – Sectional specification set for reinforcement materials. Specification for finished fabric woven from “E” glass for printed boards

Published By Publication Date Number of Pages
BSI 2023 26
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This International Standard covers finished fabrics woven from ‘‘E’’ glass electrical grade glass fibre yarns that are intended as a reinforcing material in laminated plastics for electrical and electronic use. All fabrics covered by this specification are plain weave. This specification determines the nomenclature, definitions, general and chemical requirements for the glass, and physical requirements for finished woven glass fibre fabrics. Annex A of this standard provides a style designator for each finished fabric glass style, with specifications on yarn, fabric count, thickness and weight in both SI and US system.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
5 English
CONTENTS
7 FOREWORD
9 1 Scope
2 Normative references
3 Terms and definitions
12 4 Visual requirements
Tables
Table 1 – Classification of defects
13 5 Physical requirements
5.1 Fabric count
5.2 Weave type
5.3 Fabric thickness
5.4 Fabric weight
5.5 Fabric length
5.6 Fabric width
5.7 Feather length
5.8 Filament diameter
Table 2 – Filament diameter designations
14 5.9 Bare glass nominal measurement
6 Chemical requirements
7 Electrical requirements
7.1 Dielectric constant
7.2 Dissipation factor
Table 3 – Bare glass nominal measurements
15 8 Workmanship requirements
8.1 Splices
8.2 Laser machinability performance
8.3 Alternate fabric styles and weaves
9 Quality assurance
9.1 Statistical process control (SPC)
16 9.2 Responsibility for inspection
9.3 Test equipment and inspection facilities
9.4 Preparation of samples
9.5 Standard laboratory conditions
9.6 Inspection requirements and acceptability
9.6.1 General
9.6.2 Sample size
Table 4 – Sample size per number of rolls shipped
17 9.6.3 Sampling plans
9.6.4 Acceptable quality level (AQL)
9.7 Test methods
9.7.1 Fabric appearance
Table 5 – Sample size per length of individual roll shipped and the acceptable quality level
18 9.7.2 Fabric count
9.7.3 Weave type
9.7.4 Fabric thickness
9.7.5 Weight per unit area
19 9.7.6 Fabric length
9.7.7 Fabric width
9.7.8 Finish level (organic content)
20 9.7.9 Bias or bowed filling
10 Preparation for delivery
10.1 Preservation and packaging
10.2 Packing
10.3 Marking
11 Additional information
11.1 Ordering data
11.2 New styles
21 Annex A (normative)Finished fabric glass styles in SI units
24 Bibliography

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BS EN IEC 61249-6-3:2023
$142.49