EN ISO 11401:1998

Plastics - Phenolic resins - Separation by liquid chromatography (ISO 11401:1993)

Specifies three chromatographic methods for the separation of phenolic resins into their component compounds according to molecular size or molecular weight and polarity: gel-permeation chromatography, high-performance liquid chromatography on polar and on non-polar columns. Applies to phenolic resins that are soluble in the solvents and solvent blends used. This test is useful for characterization of products and for research.

Kunststoffe - Phenolharze - Trennung durch Flüssigchromatographie (ISO 11401:1993)

Diese Internationale Norm beschreibt chromatographische Verfahren zur Auftrennung von Phenolharzen in seine Bestandteile. Die Trennung erfolgt nach Molekulargewicht und/oder Polarität. Es gibt verschiedene Verfahren der Flüssigchromatographie. A: Gelchromatographie B: Hochleistungsflüssigchromatographie auf polaren Kolonnen C: Hochleistungsflüssigchromatographie auf unpolaren Kolonnen

Plastiques - Résines phénoliques - Séparation par chromatographie en phase liquide (ISO 11401:1993)

La CEI 61290-3-3:2013 applique à tous les amplificateurs optiques (AO) monocanaux disponibles commercialement, y compris les AO utilisant des fibres pompées optiquement (OFA) basées soit sur des fibres dopées aux terres rares, soit sur l'effet Raman, les amplificateurs optiques à semiconducteurs (AOS) et les amplificateurs optiques à guide d'onde planaire (POWA). Elle s'applique plus particulièrement aux AO monocanaux placés devant des récepteurs optiques, lorsqu'il n'y a pas d'élément de filtrage optique passe bande placé entre l'AO et le récepteur. L'objet de la présente partie de la CEI 61290-3 est de déterminer des exigences uniformes de mesure précise et fiable du rapport de la puissance de sortie du signal sur la puissance totale d'émission spontanée amplifiée (ESA) générée par l'AO (amplificateur optique) dans la bande passante optique du récepteur. Cette quantité est une mesure du bruit de battement spontané-spontané au niveau du récepteur et elle est corrélée avec le facteur de bruit spontané-spontané de l'AO, Fsp-sp, selon les définitions de la CEI 61290-3 et de la CEI 61291-1.
Mots clés: amplificateurs optiques (AO) monocanaux, amplificateurs optiques à semiconducteurs (AOS), amplificateurs optiques à guide d'onde planaire (POWA), mesure pré du rapport de la puissance de sortie du signal sur la puissance totale d'émission spontanée amplifiée (ESA) générée par l'AO (amplificateur optique) dans la bande passante optique du récepteur

Polimerni materiali - Fenolne smole - Ločitev s tekočinsko kromatografijo (ISO 11401:1993)

General Information

• Status: Published
• Publication Date: 18-Aug-1998
• Withdrawal Date: 27-Feb-1999
• ICS: 83.080.10 - Thermosetting materials
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249/SC 1/WG 13 - Thermosets
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 19-Aug-1998
• Completion Date: 19-Aug-1998
• Ref Project: SIST EN ISO 11401:2000 - Plastics - Phenolic resins - Separation by liquid chromatography (ISO 11401:1993)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11401:2000
01-maj-2000
3ROLPHUQLPDWHULDOL)HQROQHVPROH/RþLWHYVWHNRþLQVNRNURPDWRJUDILMR,62

Plastics - Phenolic resins - Separation by liquid chromatography (ISO 11401:1993)
Kunststoffe - Phenolharze - Trennung durch Flüssigchromatographie (ISO 11401:1993)
Plastiques - Résines phénoliques - Séparation par chromatographie en phase liquide
(ISO 11401:1993)
Ta slovenski standard je istoveten z: EN ISO 11401:1998
ICS:
83.080.10 Duromeri Thermosetting materials
SIST EN ISO 11401:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11401:2000

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SIST EN ISO 11401:2000

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SIST EN ISO 11401:2000

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SIST EN ISO 11401:2000

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SIST EN ISO 11401:2000

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SIST EN ISO 11401:2000
ISO
STANDARD 11401
First edition
1993-12-01
- Phenolic resins - Separation
Plastics
by liquid chromatography
- R&ines phbnoliques - Separation par Chromatographie en
Plas tiques
Phase liquide
Reference number
ISO 11401:1993(E)

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SIST EN ISO 11401:2000
Foreword
ISO (the Wernational 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 11401 was prepared by Technical Committee
lSO/TC 61, Plastics, Sub-Committee SC 12, Thermosetting materials.
Later, this International Standard will become part of a general Standard
concerning liquid chromatography.
0 ISO 1993
All rights reserved. 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 per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 0 CH-121 ‘1 GenGve 20 0 Switzerland
Printed in Switzerland
ii

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SIST EN ISO 11401:2000
ISO 1~401:1993(E)
INTERNATIONAL STANDARD
- Phenolic resins - Separation by liquid
Plastics
chromatography
2 Normative references
1 Scope
The following Standards contain provisions which,
1.1 This International Standard specifies chromato-
through reference in this text, constitute provisions
graphic methods for the Separation of phenolic resins
of this International Standard. At the time of publi-
into their component compounds. Separation takes
cation, the editions indicated were valid. All Standards
place according to molecular weight and/or polarity.
are subject to revision, and Parties to agreements
based on this International Standard are encouraged
There are various liquid chromatographic methods:
to investigate the possibility of applying the most re-
cent editions of the Standards indicated below.
A: Gel-permeation chromatography
Members of IEC and ISO maintain registers of cur-
rently valid International Standards.
liquid chromatography on
B: High-performance
polar columns
ISO 472:1988, Plastics - Vocabulary.
liquid chromatography on
Ce l-ligh-performance
ISO 10082:199”1, Plastics - Phenolic resins - Defi-
non-polar columns
nitions and test methods.
lt is possible to separate a phenolic resin into its
components according to molecular size using
3 Definitions
method A (gel-permeation chromatography). Whereas
free Phenol and the sum of the dihydro-
For the purposes of this International Standard, the
xydiphenylmethanes (in novolaks) and various
following definitions apply.
methylolphenols (in resols) are quantitatively separ-
ated in this procedure, high-molecular-weight compo-
3.1 phenolic resin: Generally, a class of resins
nents of the resins are only incompletely separated
made by the polycondensation of Phenol, its
due to the multitude of isomers.
homologues and/or derivatives, with aldehydes or ke-
tones. [ISO 4721
Methods B and C (high-performance liquid chroma
...