увод
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 електричне 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, треба обратити пажњу на различите критеријуме одобрења који су потребни за различите типове ИСО докумената. This document has been drafted in accordance with the editorial rules of ISO/IEC Directive Part 2. iso.org/directives

Please note that certain elements 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 development of the document will be in the ISO list of the introduction and/or patent claims received. iso.org/patents

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

For a description of the meaning of specific ISO terms and expressions related to conformity assessment, and for information on ISO’s compliance with WTO principles in Technical Barriers to Trade (ТБТ), please see the following URL: Foreword – Supplementary information

ИСО 16474-1-2013 Боје и лакови – Test methods for exposure to laboratory light sources

The committee responsible for this document is ISO/TC 35, Боје и лакови, Subcommittee SC 9, Common Test Methods for Paints and varnishes.

The first edition of ISO 16474-1, together with ISO 16474-2, cancelled and replaced the technically revised ISO 11341:2004. The first edition of ISO 16474-1, together with ISO 16474-3, eliminated and replaced the technically revised ISO 11507:2007.

ИСО 16474 састоји се од следећих делова, under the general heading Paints and varnishes – Methods of exposure to laboratory light sources:

– Парт 1: General guidance

– Парт 2: Xenon arc lamp

– Парт 3: Fluorescent UV lamps

– Парт 4: Open carbon arc lamp

ИСО 16474-1-2013 Боје и лакови – Test methods for exposure to laboratory light sources

увести
Paints, лакови, and coatings of similar materials are commonly used outdoors or indoors for prolonged exposure to solar radiation or solar radiation behind glass. Стога, it is important to determine the effects of solar radiation, heat, moisture, and other climatic stresses on the polymer’s color and other properties. Outdoor exposure to solar radiation and solar radiation filtered by window glass is described in ISO 2810[9]. Међутим, it is often necessary to more quickly determine the effects of light, heat, and moisture on the physical, хемијски, and optical properties of coatings exposed to artificially accelerated aging or artificially accelerated irradiation using specific laboratory light sources. Exposure in these laboratory devices is carried out under more controlled conditions than in the natural environment and is designed to accelerate polymer degradation and product failure. It is difficult to correlate the results of accelerated weathering or artificially accelerated irradiation with those obtained under actual conditions of use because of the differences between the two types of exposure and because laboratory tests often cannot recapitalize all the exposure stresses experienced by coatings exposed under actual conditions of use. Додатно, the increased degradation rate of accelerated testing compared to natural exposure conditions varies depending on the type of material and its formulation. No laboratory exposure test can be specified as a total simulation of actual use of exposure. Due to differences in solar radiation, time of humidity, температура, contaminants, and other factors, the relative durability of materials in actual use exposure can vary greatly depending on the location of exposure. Стога, even if the results of specific accelerated weathering or artificially accelerated irradiation are found to be useful for comparing the relative durability of materials exposed to specific outdoor locations or specific conditions of actual use, they cannot be assumed to be useful for determining the relative durability of materials exposed to different outdoor locations or different conditions of actual use.

1 Range
1.1 Овај део ИСО-а 16474 provides information and general guidance related to the selection and operation of exposure methods described in detail in subsequent sections. It also describes the general performance requirements for equipment used to expose paints and varnishes to laboratory light sources. Information on such performance requirements is provided for manufacturers of artificially accelerated aging or artificially accelerated irradiation devices.

1.2 Овај део ИСО-а 16474 also provides interpretative information on artificially accelerated weathering or artificially accelerated radiation exposure data.

2 Normative references
All or part of the following documents are referred to normatively in this document and are required for their application. За датиране референце, примењује се само наведена верзија. For undated references, a new version of the reference (укључујући све ревизије) примењује.

ИСО 16474-1-2013 Боје и лакови – Test methods for exposure to laboratory light sources

ИСО 1513, Боје и лакови – Examination and preparation of test samples

ИСО 1514, Боје и лакови – Standard panels for testing

ИСО 2808, Боје и лакови – Determination of film thickness

ИСО 3270, Paints and varnishes and their raw materials – regulation and testing of temperature and humidity

ИСО 4618, paints and varnishes – Terms and definitions

ИСО 9370, Plastics – Instrumental determination of radiation exposure in ageing tests – General guidance and basic test methods

ИСО 15528, Paints, varnishes and raw materials for paints and varnishes – Sampling

ИСО 16474-2, Боје и лакови – Methods of exposure to laboratory light sources – Парт 2: xenon arc lamps

ИСО 16474-3, Боје и лакови – Methods of exposure to laboratory light sources – Парт 3: Fluorescent ultraviolet lamps

ИСО 16474-4, Боје и лакови – Methods of exposure to laboratory light sources – Парт 4: Open flame carbon arc lamps

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 Artificial accelerated irradiation

The material is exposed to a laboratory radiation source designed to mimic solar radiation filtered by window glass or radiation from an indoor lighting source, and the sample is subjected to relatively small changes in temperature and relative humidity in an attempt to produce the same changes more quickly as when the material is used in an indoor environment

Белешка 1: These exposures are often referred to as fading or light resistance tests.

ИСО 16474-1-2013 Боје и лакови – Test methods for exposure to laboratory light sources

3.2 Artificial accelerated weathering

In contrast to outdoor or in-service exposure, materials are exposed to conditions that may be circulatory and reinforcing in a laboratory aging facility

Белешка 1: This involves laboratory radiation sources, heat, and moisture (in the form of relative humidity and/or water spraying, condensation, or soaking) to try to produce the same changes more quickly as long-term outdoor exposure.

Белешка 2: The device may include devices for controlling and/or monitoring light sources and other weathering parameters. It may also include exposure to special conditions, such as acid fog to simulate the effects of industrial gases.

3.3 Control Materials

Materials that have a similar composition and structure to the test material and are exposed at the same time for comparison with the test material

Белешка 1: An example of the use of control materials is when a formulation different from the one currently used is being evaluated. In this case, the control will be the coating made with the original formula.

3.4 File Sample

A part of the material to be tested that is stored under stable conditions and used to compare exposed and unexposed states

3.5 References

Materials with known properties

3.6 Reference Specimen

Part of the reference substance to be exposed

ИСО 16474-1-2013 Боје и лакови – Test methods for exposure to laboratory light sources

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