предговор
ИСО (Међународна организација за стандардизацију) је глобални савез националних тела за стандардизацију (Тела чланица ИСО). Развој међународних стандарда се обично спроводи преко ИСО техничких комитета. Свака институција чланица заинтересована за предмет за који је основан технички комитет има право да буде заступљена у тој комисији. Међународне владине и невладине организације које су у вези са ИСО такође су укључене у овај посао. ИСО блиско сарађује са Међународном електротехничком комисијом (ИЕЦ) о свим питањима електротехничке стандардизације.

Процедуре које се користе за израду овог документа и оне које се користе за даље одржавање описане су у Делу 1 ИСО/ИЕЦ директиве. Нарочито, обратите пажњу на различите стандарде одобрења који су потребни за различите типове ИСО докумената. Овај документ је израђен у складу са правилима уређивања у Дел 2 ИСО/ИЕЦ директиве (види исо.орг/дирецтивес).

Please note that certain contents of this document may be subject to patent rights. ИСО није одговоран за идентификацију било ког или свих таквих патената. Details of any patent rights identified during the preparation of the document will be in the introduction and/or list of patent claims received by ISO (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.

Voluntary, related standards and conformity assessment related ISO specific and express the meaning of terminology as well as in relevant ISO 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.

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

ИСО 23169-2020 “Field test methods for quality assessment of paints and varnished interior wall Coatings”

увести
A typical interior wall coating system (види слику 1) consists of a thick filler, a coating primer, and two finishes. As a result, the final quality of the interior wall depends on the entire paint system from the filler to the primer to the top coat. Додатно, the quality of the coating conditions, such as film thickness and paint water dilution rate, has a significant impact on the final wall coating system.

Figure 1 — Typical interior wall coating system

1 Substrate (wall)
2 packing
3 Primer (1 coat)
4 Top coat (2 coats)
There is no standardized field test method in the market to check the performance of the entire system. Currently, so-called “field testing methods” rely on visual testing, nail scrubbing and touch. These methods are subjective, as the results may vary from person to person, even for the same wall coating system, and the results are not repeatable. Стога, this document provides standardized test methods for on-site wall paint evaluation. Using these standardized test methods can help distinguish between high quality and low quality interior wall paints.

ИСО 23169-2020 “Field test methods for quality assessment of paints and varnished interior wall Coatings”

1 домет
This document specifies two field test methods (field cleanliness [stain removal] and field resistance to wet scrubbing) for assessing the quality of interior wall coatings.

These tests are applicable to white coatings and light coatings where the tri stimulus value Y10 is greater than 25 measured on samples consisting of coatings coated on a black substrate.

The cleanability test can differentiate paint quality into 18% pigment volume concentration (ПВЦ) and critical pigment volume concentration (CPVC). Field test methods for wet scrubbing resistance can differentiate coating quality when PVC is almost equal to or above CPVC.

2 Normative references
The following files are referenced in the text in such a way that some or all of the content constitutes the requirements of this document. За датиране референце, citation-only versions apply. For undated references, the latest version of the reference (укључујући све ревизије) примењује.

ИСО 3696, Analytical laboratory water – specifications and test methods

ИСО 4618, Боје и лакови — Terms and definitions

ИСО 6504-3:2019 Боје и лакови – Determination of coverage-Part 3: Determination of coverage-using paints for masonry, concrete and interiors

ИСО 13076, Боје и лакови – Lighting and procedures for visual evaluation of paints

ИСО 23169-2020 “Field test methods for quality assessment of paints and varnished interior wall Coatings”

3 Terms and Definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and the following articles apply.

3.1 Paint to water dilution ratio

The ratio of water to paint, expressed as a percentage of mass

3.2 Light Color Coating

Coatings with a tristimulus value of Y10 greater than 25 were measured by spectrophotometer on a sample consisting of coatings coated on a black substrate

Белешка 1: The tests shall comply with ISO 6504-3.

3.3 Cleanliness

The dry coating film is able to withstand the penetration of the dirt agent and is released from it through the cleaning process without removing more than the specified film thickness

[Извор: ИСО 11998:2006, 3.1]

3.4 Site wet scrubbing resistance

Ability of the dry film to withstand an average loss of less than the specified oil film thickness within a specified area when exposed to a specified wet scrub cycle (3.5)

Белешка 1: In ISO 11998, resistance to wet scrubbing is based on laboratory tests of 200 wet scrubbing cycles.

3.5 Scrub cycle

The matte pads move each other once in both directions on the matte length (3.6)

[Извор: ИСО 11998:2006, 3.2]

3.6 Length of grinding

Length of stroke (3.7) plus length of pad

[Извор: ИСО 11998:2006, 3.3]

3.7 Stroke Length

The distance the device traverses with a stroke

[Извор: ИСО 11998:2006, 3.4]

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