ASTM D 868-2021 “Evaluation of the Degree of Penetration of Road Sign Paint”

Betekenis en doel
4.1 Solvents in traffic paints may cause road surface components to penetrate into traffic markings, thus making traffic markings less effective as lane or direction indicators. This procedure describes how to prepare a panel for the coating under test and a reference panel coated with a specific solvent based traffic coating to be used as a control for the evaluation.

4.2 This practice is particularly useful for evaluating solvent-based traffic paints, but can also be used for other types of traffic signs, including waterpass paints.

4.3 describes two basic procedures for measuring the amount of bleeding. The procedure to be used shall be agreed upon by the buyer and the seller.

ASTM D 868-2021 “Evaluation of the Degree of Penetration of Road Sign Paint”

Omvang van
1.1 This specification describes the test procedures used to determine the degree of seepage of traffic or road marking paint. Specific formulations of solvent-based traffic paint formulations are included as potential bleeding reference controls.

1.2 Values expressed in SI units shall be regarded as standards. Die waardes wat tussen hakies gegee word, is slegs vir verwysing.

1.3 Hierdie standaard is nie bedoel om alle veiligheidskwessies aan te spreek nie, indien enige, verband hou met die gebruik daarvan. Dit is die verantwoordelikheid van die gebruiker van hierdie standaard om toepaslike veiligheid daar te stel, gesondheid- en omgewingspraktyke en om die toepaslikheid van regulatoriese beperkings voor gebruik te bepaal.

1.4 Hierdie internasionale standaard is ontwikkel in ooreenstemming met die internasionaal erkende standaardiseringsbeginsels wat in die Besluit oor Beginsels vir die Ontwikkeling van Internasionale Standaarde vasgestel is, Riglyne en aanbevelings uitgereik deur die Komitee oor Tegniese Handelshindernisse van die Wêreldhandelsorganisasie.