ISO/TS 22298:2024

FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 22298
ISO/TC 229
Nanotechnologies — Silica
Secretariat: BSI
nanomaterials — Characteristics and
Voting begins on:
2023-10-26 measurement methods for silica with
ordered nanopore array (SONA)
Voting terminates on:
2023-12-21
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTS 22298:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/DTS 22298:2023(E)
FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 22298
ISO/TC 229
Nanotechnologies — Silica
Secretariat: BSI
nanomaterials — Characteristics and
Voting begins on:
measurement methods for silica with
ordered nanopore array (SONA)
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/DTS 22298:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/DTS 22298:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 3
5 Characteristics and measurement methods . 3
5.1 General . 3
5.2 Descriptions of characteristics and measurement methods . 4
5.2.1 General . 4
5.2.2 Chemical composition content . 4
5.2.3 Pore size . 4
5.2.4 Pore size distribution .
...

ISO/DTS 22298:2023(E)
ISO/TC 229 /WG 4
Secretariat: BSI
Nanotechnologies — Silica nanomaterials — Specification of Characteristics and
measurement methods for silica with ordered nanopore array (SONA)



Approval stage


First edition
Date: 2023-10-12

---------------------- Page: 1 ----------------------
ISO/DTS 22298:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 • CP 401 • CH-12111214 Vernier, Geneva 20
Tel. Phone: + 41 22 749 01 11
Email: copyright@iso.orgFax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org

Website: www.iso.org
Published in Switzerland.

ii © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DTS 22298:2023(E)
Contents
Foreword . 4
Introduction. 5
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Abbreviated terms . 4
5 Characteristics and measurement methods . 5
5.1 General . 5
5.2 Descriptions of characteristics and measurement methods . 5
5.2.1 Chemical composition content . 6
5.2.2 Pore size . 6
5.2.3 Pore size distribution . 6
5.2.4 Specific pore volume . 6
5.2.5 Specific surface area . 6
5.2.6 Type of ordered nanopore array . 7
5.2.7 Moisture content . 7
5.2.8 Hydrate content . 7
5.2.9 Stability . 8
5.2.10 Morphology . 8
5.2.11 Particle size . 8
6 Test report . 8
Annex A (informative) Type of ordered nanopore array . 11
Annex B (informative) Evaluation of pore size distribution .
...