Surface active agents -- Determination of polyethylene glycol content in nonionic ethoxylated surfactants -- HPLC method

ISO 16560:2015 specifies a method for the determination of the polyethylene glycol (PEG) content in aromatic and aliphatic non-ionic surface active agents of the type R-(O-C2H4) n OH; where n is the mean ethylene oxide (EO) value. It is applicable to all ethoxylated products soluble in methanol or methanol/water mixture. This method applies to PEG concentrations as mass fraction greater than or equal to 0,1 %. This International Standard is not applicable to PEG whose molar mass is lower than 400 g/mol. Monomeric ethylene glycol, diethylene glycol, triethylene glycol, and glycerol are not detected.

Agents de surface tensioactifs -- Dosage de la teneur en polyéthylène glycol dans les surfactants éthoxylés non ioniques -- Méthode par CLHP

Površinsko aktivne snovi - Določevanje polietilen glikola v neionskih etoksiliranih površinsko aktivnih snoveh - Metoda HPLC

Ta mednarodni standard določa metodo za določevanje vsebnosti polietilen glikola (PEG) v aromatskih in alifatskih neionskih površinsko aktivnih sredstvih tipa R-(O-C2H4) n OH; pri čemer se uporablja povprečna vrednost etilen oksida (EO). Uporablja se za vse etoksilirane proizvode, topne v metanolu ali mešanici metanola in vode. Ta metoda se uporablja za koncentracije PEG kot najmanj 0,1-odstotni masni delež. Ta mednarodni standard se ne uporablja za PEG z molsko maso manj kot 400 g/mol. Prisotnost monomernega etilen glikola, dietilen glikola, trietilen glikola in glicerola se ne ugotavlja.

General Information

Status
Published
Publication Date
15-Apr-2015
Current Stage
9093 - International Standard confirmed
Start Date
07-Sep-2020

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INTERNATIONAL ISO
STANDARD 16560
First edition
2015-04-15
Surface active agents —
Determination of polyethylene glycol
content in nonionic ethoxylated
surfactants — HPLC method
Agents de surface tensioactifs — Dosage de la teneur en polyéthylène
glycol dans les surfactants éthoxylés non ioniques — Méthode par CLHP
Reference number
ISO 16560:2015(E)
ISO 2015
---------------------- Page: 1 ----------------------
ISO 16560:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 16560:2015(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Reagents ........................................................................................................................................................................................................................ 1

6 Apparatus ..................................................................................................................................................................................................................... 2

7 Sampling ........................................................................................................................................................................................................................ 2

7.1 Preparation of the test sample .................................................................................................................................................. 2

7.2 Preparation of test solutions ....................................................................................................................................................... 2

8 Procedure..................................................................................................................................................................................................................... 3

8.1 Apparatus settings ............................................................................................................................................................................... 3

8.2 Calibration .................................................................................................................................................................................................. 3

8.2.1 Preparation of calibration solutions ............................................................................................................... 3

8.2.2 Calibration curve ............................................................................................................................................................. 4

8.3 Determination ......................................................................................................................................................................................... 4

9 Expression of results ........................................................................................................................................................................................ 5

10 Precision ....................................................................................................................................................................................................................... 5

10.1 Repeatability ............................................................................................................................................................................................. 5

10.2 Reproducibility ....................................................................................................................................................................................... 5

11 Test report ................................................................................................................................................................................................................... 5

Annex A (informative) Results of interlaboratory tests for fatty alcohol ethoxylate .........................................6

© ISO 2015 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 16560:2015(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. Each 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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any

patent rights identified during the development of the document will be in the Introduction and/or on

the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 91, Surface active agents.
iv © ISO 2015 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 16560:2015(E)
Introduction
This International Standard was developed based on EN 12582.
© ISO 2015 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 16560:2015(E)
Surface active agents — Determination of polyethylene glycol
content in nonionic ethoxylated surfactants — HPLC method
1 Scope

This International Standard specifies a method for the determination of the polyethylene glycol (PEG)

content in aromatic and aliphatic non-ionic surface active agents of the type R-(O-C H ) OH; where n

2 4 n

is the mean ethylene oxide (EO) value. It is applicable to all ethoxylated products soluble in methanol

or methanol/water mixture. This method applies to PEG concentrations as mass fraction greater than

or equal to 0,1 %. This International Standard is not applicable to PEG whose molar mass is lower than

400 g/mol. Monomeric ethylene glycol, diethylene glycol, triethylene glycol, and glycerol are not detected.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 607, Surface active agents and detergents — Methods of sample division

ISO 5725-2, Accuracy (trueness and precision) measurement methods and results — Part 2: Basic method

for the determination of repeatability and reproducibility of a standard measurement

...

SLOVENSKI STANDARD
SIST ISO 16560:2017
01-november-2017

3RYUãLQVNRDNWLYQHVQRYL'RORþHYDQMHSROLHWLOHQJOLNRODYQHLRQVNLKHWRNVLOLUDQLK

SRYUãLQVNRDNWLYQLKVQRYHK0HWRGD+3/&
Surface active agents - Determination of polyethylene glycol content in nonionic
ethoxylated surfactants - HPLC method

Agents de surface tensioactifs - Dosage de la teneur en polyéthylène glycol dans les

surfactants éthoxylés non ioniques - Méthode par CLHP
Ta slovenski standard je istoveten z: ISO 16560:2015
ICS:
71.100.40 Površinsko aktivna sredstva Surface active agents
SIST ISO 16560:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ISO 16560:2017
---------------------- Page: 2 ----------------------
SIST ISO 16560:2017
INTERNATIONAL ISO
STANDARD 16560
First edition
2015-04-15
Surface active agents —
Determination of polyethylene glycol
content in nonionic ethoxylated
surfactants — HPLC method
Agents de surface tensioactifs — Dosage de la teneur en polyéthylène
glycol dans les surfactants éthoxylés non ioniques — Méthode par CLHP
Reference number
ISO 16560:2015(E)
ISO 2015
---------------------- Page: 3 ----------------------
SIST ISO 16560:2017
ISO 16560:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 16560:2017
ISO 16560:2015(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Reagents ........................................................................................................................................................................................................................ 1

6 Apparatus ..................................................................................................................................................................................................................... 2

7 Sampling ........................................................................................................................................................................................................................ 2

7.1 Preparation of the test sample .................................................................................................................................................. 2

7.2 Preparation of test solutions ....................................................................................................................................................... 2

8 Procedure..................................................................................................................................................................................................................... 3

8.1 Apparatus settings ............................................................................................................................................................................... 3

8.2 Calibration .................................................................................................................................................................................................. 3

8.2.1 Preparation of calibration solutions ............................................................................................................... 3

8.2.2 Calibration curve ............................................................................................................................................................. 4

8.3 Determination ......................................................................................................................................................................................... 4

9 Expression of results ........................................................................................................................................................................................ 5

10 Precision ....................................................................................................................................................................................................................... 5

10.1 Repeatability ............................................................................................................................................................................................. 5

10.2 Reproducibility ....................................................................................................................................................................................... 5

11 Test report ................................................................................................................................................................................................................... 5

Annex A (informative) Results of interlaboratory tests for fatty alcohol ethoxylate .........................................6

© ISO 2015 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 16560:2017
ISO 16560:2015(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. Each 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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any

patent rights identified during the development of the document will be in the Introduction and/or on

the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 91, Surface active agents.
iv © ISO 2015 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 16560:2017
ISO 16560:2015(E)
Introduction
This International Standard was developed based on EN 12582.
© ISO 2015 – All rights reserved v
---------------------- Page: 7 ----------------------
SIST ISO 16560:2017
---------------------- Page: 8 ----------------------
SIST ISO 16560:2017
INTERNATIONAL STANDARD ISO 16560:2015(E)
Surface active agents — Determination of polyethylene glycol
content in nonionic ethoxylated surfactants — HPLC method
1 Scope

This International Standard specifies a method for the determination of the polyethylene glycol (PEG)

content in aromatic and aliphatic non-ionic surface active agents of the type R-(O-C H ) OH; where n

2 4 n

is the mean ethylene oxide (EO) value. It is applicable to all ethoxylated products soluble in methanol

or methanol/water mixture. This method applies to PEG concentrations as mass fraction greater than

or equal to 0,1 %. This International Standard is not applicable to PEG whose molar mass is lower than

400 g/mol. Monomeric ethylene glycol, diethylene glycol, triethylene glycol, and glycerol are not detected.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensab
...

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