NF EN 727

NF EN 727

October 1994
Standard Cancelled

Plastics piping and ducting systems. Thermoplastics pipes and fittings. Determination of vicat softening temperature (vst).

Le présent document décrit une méthode de détermination de la température de ramollissement Vicat des tubes et des raccords en matières thermoplastiques et comprend l'adaptation, dans ce but, de la méthode B, décrite dans l'ISO 306, en utilisant une force de 50 N.

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Main informations

Collections

National standards and national normative documents

Publication date

October 1994

Number of pages

9 p.

Reference

NF EN 727

ICS Codes

23.040.20   Plastics pipes
23.040.45   Plastics fittings

Classification index

T54-024

Print number

1 - 01/10/1994

International kinship

ISO 2507:1982

European kinship

EN 727:1994
Sumary
Plastics piping and ducting systems. Thermoplastics pipes and fittings. Determination of vicat softening temperature (vst).

Le présent document décrit une méthode de détermination de la température de ramollissement Vicat des tubes et des raccords en matières thermoplastiques et comprend l'adaptation, dans ce but, de la méthode B, décrite dans l'ISO 306, en utilisant une force de 50 N.
Replaced standards (2)
NF T54-024
November 1980
Standard Cancelled
Plastics. Un-plasticized PVC pipes. Determination of VICAT temperature.

NF T54-034
November 1980
Standard Cancelled
Plastics. Un-plasticized PVC fittings. Determination of VICAT temperature.

Standard replaced by (3)
NF EN ISO 2507-1
December 2017
Standard Current
Thermoplastics pipes and fittings - Vicat softening temperature - Part 1 : general test method

The method specified is based on determining the temperature at which a standard indenter, under a force of 50 N ± 1 N, penetrates 1 mm into the surface of a test piece cut from the wall of a pipe or fitting while the temperature is raised at a constant rate. Is applicable only to thermoplastics materials for which it is possible to measure the temperature at which the rate of softening becomes rapid. Is based on ISO 306:1994 which, however, applies to materials in the form of sheets.

NF EN ISO 2507-2
December 2017
Standard Current
Thermoplastics pipes and fittings - Vicat softening temperature - Part 2 : test conditions for unplasticized poly(vinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fittings and for high impact resistance poly (vinyl chloride) (PVC-HI) pipes

Specifies the particular test conditions for determining the Vicat softening temperature of PVC-U and PVC-C pipes and fittings as well as PVC-HI pipes (the general test method is given in ISO 2507-1). Also gives, for information, the corresponding basic specifications.

NF EN ISO 2507-3
December 2017
Standard Current
Thermoplastics pipes and fittings - Vicat softening temperature - Part 3 : test conditions for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) pipes and fittings

Specifies the particular test conditions for determining the Vicat softening temperature of ABS and ASA pipes and fittings (the general test method is given in ISO 2507-1). Also gives, for information, the corresponding basic specifications.

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