предговор
ИСО (Међународна организација за стандардизацију) је глобална федерација националних тела за стандардизацију (Тела чланица ИСО). Развој међународних стандарда се обично спроводи преко ИСО техничких комитета. Each member group interested in a subject on which a technical committee has been established has the right to be represented on the Committee. International, governmental and non-governmental organizations in liaison with ISO are also involved in this work. ИСО блиско сарађује са Међународном електротехничком комисијом (ИЕЦ) о свим питањима електричне стандардизације.

Парт 1 of the ISO/IEC Directive describes the procedures used to develop this document and for further maintenance. Нарочито, обратите пажњу на различите стандарде одобрења који су потребни за различите типове ИСО докумената. This document has been drafted in accordance with the editorial rules in Part 2 ИСО/ИЕЦ директиве (види исо.орг/дирецтивес).

Имајте на уму да неки елементи овог документа могу бити предмет патентних права. ИСО није одговоран за идентификацију било ког или свих таквих патената. Details of any patent rights identified during the documentation development process will be included in the introduction and/or list of ISO patent claims received (see iso.org/patents).

Any trade names used in this document are information provided for the convenience of the user and do not constitute an endorsement.

Explanations of the relevant standards of voluntary, ISO specific terms related to conformity assessment and the expression of meaning, and the ISO in the technical barriers to trade (ТБТ) adhere to the principle of the world trade organization (WTO) information, please refer to the iso.org/iso/foreword.html.

This document has been prepared by Technical Committee ISO/TC 35, Боје и лакови, Subcommittee SC 9, Common Test Methods for Paints and varnishes.

A list of all the parts in the ISO 22553 series can be found on the ISO website.

Any feedback or questions on this document should be referred to the user’s national standards body. A complete list of these institutions can be found at iso.org/members.html.

ИСО 22553-8-2020 Боје и лакови – electrodeposition coatings – Парт 8: Charge density

увести
The charge density provides information about the efficiency of the deposition process during the electrodeposition coating process.

If you need to measure wet film resistance according to ISO 22553-7, you can specify it in the test kit provided.

1 Обим примене
This document specifies a method for determining the charge density of electrodeposited coatings (e-coat) for the automotive industry and other general industrial applications (на пример. water chillers, consumer goods, radiators, aerospace, agriculture).

2 Normative reference files
When the following documents are referenced in the context, part or all of them constitute the requirements of this document. За датиране референце, citation-only versions apply. За цитате без датума, the most recent version of the referenced document (including any amendments) примењује.

ИСО 1514, Боје и лакови — Standard plates for testing

ИСО 2808, paints and varnishes – determination of film thickness

ИСО 4618, Боје и лакови – Terms and definitions

ИСО 22553-1, Боје и лакови – electrodeposited coatings – Парт 1: Vocabulary

ИСО 23321, Paints and varnishes solvents – softening water for industrial applications – Specification and test methods

3 Terms and Definitions
For the purposes of this document, the terms and definitions given in ISO 4618, ИСО 22553-1 and below apply.

3.1 Charge density

Volume charge ρ _

Quotient of charge Q and volume V:

mml_m1

Белешка 1: Charge density is expressed as coulomb per cubic meter (Ц… m −3).

Белешка о уносу 2:1 C⋅m −3 = 1 A⋅s⋅m −3.

3.2 Practical dry film density

Actually determine the density of drying and curing coatings

[Извор: ИСО 3233-3:2015, 3.4, Modified: A hyphen has been added to the term between “dry” и “филм”.]

3.3 Theoretical dry film density

The coating density is calculated by the solvent, the coating material density and the non-volatile substance content of the coating material

[Извор: ИСО 3233-3:2015, 3.6, Modified: A hyphen has been added to the term between “dry” и “филм”.]

Јаван је само одељак са стандардним информацијама. Да бисте видели цео садржај, морате купити стандард преко званичних канала.