Anlam ve Amaç
3.1 Any effects, renk değişimi gibi, blistering. Observe and note the loss of adhesion, softening or brittleness.

Kapsamı
1.1 The practice consists of determining the failure resistance of organic finishes immersed in detergent solutions in an accelerated manner.

1.2 SI birimlerinde ifade edilen değerler standart olarak kabul edilecektir.. Values in parentheses are for reference only.

1.3 Bu standardın tüm güvenlik konularını ele alması amaçlanmamıştır. (meaning and purpose) kullanımıyla ilgili

4.1 Birçok uygulama için, the ability of a paint or coating to resist deterioration of physical and optical properties due to exposure to light, sıcaklık, and water may be very important. This practice aims to cause changes in attributes related to end-use conditions, including the effects of sunlight, nem, and heat. The exposures used in this practice are not intended to model the deterioration caused by local weather phenomena such as atmospheric pollution, biological attack, and saline-water exposure.

4.2 Caveats – Results may change when different operating conditions are used. Öyleyse, no reference to the use of this practice may be made unless accompanied by a report prepared under Section 10 describing the specific operating conditions used. See Practice G151 for details of the caveats applicable to the use of the results obtained under this practice.

ASTM D 5031-2018 “Closed Carbon Arc Exposure Test for Paints and Related Coatings”

Not 2: For additional information on sources of variability and strategies to address variability in the design, execution, and data analysis of laboratory accelerated exposure trials, see Guide G141.

4.2.1 The spectral power profiles of light from a closed carbon arc are significantly different from those generated by light and water exposure devices using other carbon arc configurations or other light sources. The type and rate of degradation and performance ranking generated by exposure to closed carbon arcs may be quite different from those generated by exposure to other types of laboratory light sources.

4.2.2 Inter-laboratory comparisons are valid only if all laboratories use the same type of carbon arcs, filtreler, and exposure conditions.

4.3 The reproducibility of test results between laboratories has been shown to be good when evaluating the stability of the material according to the performance class compared to other materials or controls. Iv,5 Öyleyse, it is highly recommended to expose similar materials with known properties (kontrol) at the same time as the test material. At least three replications of each material are recommended to allow statistical evaluation of the results.

4.4 Test results will depend on the degree of care taken to operate the equipment according to practice G153. Important factors include regulation of line voltage, absence of salt or other water deposits, temperature and humidity control, and electrode conditions.

4.5 All exposures referred to in accordance with this practice shall include a complete description of the test period used.

ASTM D 5031-2018 “Closed Carbon Arc Exposure Test for Paints and Related Coatings”

Kapsamı
1.1 This procedure covers the selection of test conditions for accelerated exposure testing of coatings and related products in closed carbon arc units operated in accordance with practices G151 and G153. The practice also includes preparation of specimens, suitable test conditions for coatings, and evaluation of test results. Masa 1 describes the commonly used test conditions.

1.2 This practice does not include filtered open-flame carbon arc exposure of paints and associated coatings, as described in Practice D822/D822M. Practice D3361/D3361M covers an additional procedure for exposing these products, where specimens are exposed to radiation from an unfiltered open flame carbon arc that produces shorter wavelengths and higher levels of shorter-wavelength radiation than a filtered open flame or closed carbon arc.

Not 1: Practice D3361/D3361M requires the use of an open flame carbon arc device with automatic humidity control.

1.3 SI birimleri veya inç-pound birimleriyle ifade edilen değerler, standart değerler olarak ayrı ayrı ele alınmalıdır.. Her sistemde belirtilen değerler tam olarak eşdeğer olmayabilir; Öyleyse, her sistem birbirinden bağımsız olarak kullanılmalıdır. İki sistemin değerlerinin birleştirilmesi kriterlere uyulmamasına neden olabilir.

1.4 Bu standardın tüm güvenlik konularını ele alması amaçlanmamıştır., varsa, kullanımıyla ilgili. Uygun güvenliğin sağlanması bu standardın kullanıcısının sorumluluğundadır., sağlık ve çevre uygulamaları ve kullanımdan önce düzenleyici kısıtlamaların uygulanabilirliğini belirlemek.

ASTM D 5031-2018 “Closed Carbon Arc Exposure Test for Paints and Related Coatings”

1.5 Bu uluslararası Standart, Uluslararası Standartların Geliştirilmesine İlişkin İlkeler Kararında belirlenen uluslararası kabul görmüş standardizasyon ilkelerine uygun olarak geliştirilmiştir., Dünya Ticaret Örgütü Ticaretin Önündeki Teknik Engeller Komitesi tarafından yayımlanan Kılavuz ve Tavsiyeler. If any). Uygun güvenliğin sağlanması bu standardın kullanıcısının sorumluluğundadır., sağlık ve çevre uygulamaları ve kullanımdan önce düzenleyici kısıtlamaların uygulanabilirliğini belirlemek.

1.4 Bu uluslararası Standart, Uluslararası Standartların Geliştirilmesine İlişkin İlkeler Kararında belirlenen uluslararası kabul görmüş standardizasyon ilkelerine uygun olarak geliştirilmiştir., Dünya Ticaret Örgütü Ticaretin Önündeki Teknik Engeller Komitesi tarafından yayımlanan Kılavuz ve Tavsiyeler.