EN ISO 13468-1:1996
(Main)Plastics - Determination of total luminous transmittance of transparent materials - Part 1: Single-beam instrument (ISO 13468-1:1996)
Plastics - Determination of total luminous transmittance of transparent materials - Part 1: Single-beam instrument (ISO 13468-1:1996)
Deals with the determination of the total luminous transmittance, in the visible region of the spectrum, of planar transparent and substantially colourless plastics, using a single-beam photometer with a specified CIE standard light source and photodetector. Does not apply to plastics which contain fluorescent substances.
Kunststoffe - Bestimmung des totalen Lichttransmissionsgrades von transparenten Materialien - Teil 1: Einstrahlinstrument (ISO 13468-1:1996)
Plastiques - Détermination du facteur de transmission du flux lumineux total des matériaux transparents - Partie 1: Instrument à faisceau unique (ISO 13468-1:1996)
La présente partie de l'ISO 13468 traite de la détermination du facteur de transmission du flux lumineux total, dans le spectre visible des plastiques plans, transparents et pratiquement incolores, au moyen d'un photomètre, ayant une source de lumière spécifique et un photodétecteur conformes à la norme CIE. La présente partie de l'ISO 13468 ne peut être utilisée pour les plastiques contenant des matériaux fluorescents. La présente partie de l'ISO 13468 est applicable aux matières moulées transparentes, aux films et aux feuilles d'épaisseur inférieure ou égale à 10 mm.
NOTES 1 Le facteur de transmission du flux lumineux total peut également être déterminé au moyen d'un spectrophotomètre à double faisceau, comme dans la partie 2 de l'ISO 13468. Cependant, la partie 1 fournit une méthode simple, mais précise, qui permet de déterminer rapidement et commodément le facteur de transmission. Cette méthode est adaptée à l'emploi non seulement à des fins analytiques, mais également pour les besoins du contrôle qualité. 2 Les plastiques pratiquement incolores comprennent les matériaux légèrement colorés. 3 Les éprouvettes de plus de 10 mm d'épaisseur peuvent être utilisées pour le mesurage si la structure de l'instrument utilisé le permet, mais les résultats peuvent ne pas être comparables à ceux obtenus sur des éprouve 55ttes de moins de 10 mm d'épaisseur.
Polimerni materiali – Določevanje celotne prepustnosti svetlobe prozornih materialov – 1. del: Instrument z enim žarkom(ISO 13468-1:1996)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 13468-1:1999
01-maj-1999
3ROLPHUQLPDWHULDOL±'RORþHYDQMHFHORWQHSUHSXVWQRVWLVYHWOREHSUR]RUQLK
PDWHULDORY±GHO ,QVWUXPHQW]HQLPåDUNRP ,62
Plastics - Determination of total luminous transmittance of transparent materials - Part 1:
Single-beam instrument (ISO 13468-1:1996)
Kunststoffe - Bestimmung des totalen Lichttransmissionsgrades von transparenten
Materialien - Teil 1: Einstrahlinstrument (ISO 13468-1:1996)
Plastiques - Détermination du facteur de transmission du flux lumineux total des
matériaux transparents - Partie 1: Instrument a faisceau unique (ISO 13468-1:1996)
Ta slovenski standard je istoveten z: EN ISO 13468-1:1996
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 13468-1:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 13468-1:1999
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SIST EN ISO 13468-1:1999
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SIST EN ISO 13468-1:1999
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SIST EN ISO 13468-1:1999
INTERNATIONAL ISO
134684
STANDARD
First edition
1996-08-15
- Determination of the total
Plastics
luminous transmittance of transparent
materials -
Part 1:
Single-beam instrument
Plas tiques - Determination du facteur de transmission du flux lumineux
total des ma tbriaux transparents -
Partie 7: lnstrumen t 2 faisceau unique
Reference number
ISO 13468-17 996(E)
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SIST EN ISO 13468-1:1999
ISO 13468=1:1996(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide
federation of national Standards bodies (ISO member bodies). The work
of preparing International Standards is normally carried out through ISO
technical committees. Esch member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 13468-1 was prepared by Technical Committee
lSO/TC 61, Plastics, Subcommittee SC 11, Products.
ISO 13468 consists of the following Parts, under the general title
- Determination of the total luminous transmittance of trans-
Plas tics
paren t ma terials:
- Part 7: Single-beam instrument
- Part 2: Double-beam instrumen t
Annex A of this part of ISO 13468 is for information only.
0 ISO 1996
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International
Organization for Standardization
Case Postale 56 l CH-121 1 Geneve 20 l Swi tzerland
Printed in Switzerland
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SIST EN ISO 13468-1:1999
ISO 13468=1:1996(E)
INTERNATIONAL STANDARD 0 ISO
Plastics - Determination of the total luminous
transmittance of transparent materials -
Part 1:
Single-beam instrument
on this part of ISO 13468 are encouraged to investi-
1 Scope
gate the possibility of applying the most recent edi-
tions of the Standards indicated below. Members of
This part of ISO 13468 covers the determination of
IEC and ISO maintain registers of currently valid
the total luminous transmittance, in the visible region
International Standards.
of the spectrum, of planar transparent and substan-
tially colourless plastics, using a Single-beam photo-
ISO 291 :1977, Plastics - Standard atmospheres for
meter with a specified CIE Standard light Source and
conditioning and testing.
photodetector. This part of ISO 13468 cannot be used
for plastics which contain fluorescent materials.
ISO 5725-1: 1994, Accuracy (trueness and precision)
of measurement methods and results - Part 7:
This part of ISO 13468 is applicable to transparent
General principles and definitions.
moulding materials, films and sheets not exceeding
IO mm in thickness.
ISO 5725-2: 1994, Accuracy (trueness and precision)
NOTES
of measurement methods and results - Part 2: Basic
method for the determination of repeatability and
1 Total luminous transmittance tan also be determined by
reproducibility of a Standard measurement method.
a double-beam spectrophotometer as in part 2 of the stan-
dard. Part 1, however, provides a simpl
...
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