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BSI
BS EN ISO 306:2013

BS EN ISO 306:2013

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Plastics. Thermoplastic materials. Determination of Vicat softening temperature (VST)

Available format(s)

Hardcopy , PDF

Superseded date

10-02-2023

Language(s)

English

Published date

30-11-2013

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test frame assembly calibration
7 Test specimens
8 Conditioning
9 Procedure
10 Precision
11 Test report
Annex A (informative) - Comparison of VST results obtained with
        liquid-filled heating bath and direct-contact heating unit
Annex B (informative) - Comparison of VST results obtained with
        liquid-filled heating bath and fluidized bed
Annex C (informative) - Repeatability and precision
Bibliography

Describes four methods for the determination of the Vicat softening temperature (VST) of thermoplastic materials: - method A50 using a force of 10 N and a heating rate of 50 K/h; - method B50 using a force of 50 N and a heating rate of 50 K/h; - method A120 using a force of 10 N and a heating rate of 120 K/h; - method B120 using a force of 50 N and a heating rate of 120 K/h.

This International Standard specifies four methods for the determination of the Vicat softening temperature (VST) of thermoplastic materials:

  • method A50 using a force of 10N and a heating rate of 50K/h;

  • method B50 using a force of 50N and a heating rate of 50K/h;

  • method A120 using a force of 10N and a heating rate of 120K/h;

  • method B120 using a force of 50N and a heating rate of 120K/h.

The methods specified are applicable only to thermoplastics, for which they give a measure of the temperature at which the thermoplastics start to soften rapidly.

Committee
PRI/21
DevelopmentNote
Supersedes BS 2782-1.120A,B,D,E(1990), 93/302776 DC and 02/121615 DC. (10/2004) Supersedes 12/30237820 DC. (11/2013)
DocumentType
Standard
Pages
28
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ONORM EN ISO 306 : 2014 Identical
NEN EN ISO 306 : 2013 Identical
NBN EN ISO 306 : 2014 Identical
UNE-EN ISO 306:2015 Identical
NF EN ISO 306 : 2014 Identical
EN ISO 306:2013 Identical
I.S. EN ISO 306:2013 Identical
SN EN ISO 306:2014 Identical
UNI EN ISO 306 : 2014 Identical
NS EN ISO 306 : 2013 Identical
ISO 306:2013 Identical

BS DD9999(2005) : 2005 CODE OF PRACTICE FOR FIRE SAFETY IN THE DESIGN, CONSTRUCTION AND USE OF BUILDINGS
BS 9999:2008 Code of practice for fire safety in the design, management and use of buildings
BS 7722:2002 Surface covered PVC-U profiles for windows and doors. Specification
DEFSTAN 02-530/2(2004) : 2004 REQUIREMENTS FOR MAIN AND DISTRIBUTION SWITCHGEAR - CATEGORY 2
BS 5391-1:2006 Acrylonitrile-butadiene-styrene (ABS) pressure pipe Specification
BS 5392-1:2006 Acrylonitrile-butadiene-styrene (ABS) fittings for use with ABS pressure pipe Specification
BS 7413:2002 Unplasticized polyvinyl chloride (PVC-U) profiles for windows and doors. Specification
BS PAS 25(1999) : 1999 PLASTICS FRAMES FOR USE IN GULLY TOPS AND MANHOLE TOPS FOR PEDESTRIAN AREAS
16/30314117 DC : 0 BS 9999 - FIRE SAFETY IN THE DESIGN, MANAGEMENT AND USE OF BUILDINGS - CODE OF PRACTICE
BS 9999:2017 Fire safety in the design, management and use of buildings. Code of practice
BS 7288:2016 Specification for residual current devices with or without overcurrent protection for socket-outlets for household and similar uses

ISO 293:2004 Plastics — Compression moulding of test specimens of thermoplastic materials
ISO 294-3:2002 Plastics Injection moulding of test specimens of thermoplastic materials Part 3: Small plates
ISO 472:2013 Plastics Vocabulary
ISO 294-2:1996 Plastics Injection moulding of test specimens of thermoplastic materials Part 2: Small tensile bars
ISO 291:2008 Plastics Standard atmospheres for conditioning and testing
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 294-1:2017 Plastics — Injection moulding of test specimens of thermoplastic materials — Part 1: General principles, and moulding of multipurpose and bar test specimens
ISO 2818:1994 Plastics — Preparation of test specimens by machining
ISO 20753:2008 Plastics Test specimens

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