EN 13301:2010 – Bitumen and bituminous binders – Determination of staining tendency of bitumen
1 Scope
This European Standard specifies a method for the determination of the staining tendency of bitumen.
This method is applicable to bitumen having a Ring-and-Ball softening point greater than or equal to 80 °C.
For softer bitumen, the test conditions may be modified by agreement between the involved parties.
The procedure described in this document may be used to compare results against a material for which the staining tendency is known.
NOTE Staining properties are related to the colloidal stability of the bitumen with higher values indicating lower stability.
WARNING — The use of this standard can involve hazardous materials, operations and equipment.
This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 58, Bitumen and bituminous binders — Sampling bituminous binders
EN 1427, Bitumen and bituminous binders — Determination of softening point — Ring and Ball method
EN 12594, Bitumen and bituminous binders — Preparation of test samples
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
staining tendency
tendency of oil components to separate spontaneously from bitumen
NOTE The separation of oil components can cause staining in bitumen roofing products and others bituminous products with eventual damage of adjacent materials in storage and use.
4 Principle
A retaining ring, filled with molten bitumen on a sheet of filter paper and supported on a flat horizontal plate is heated in an oven at a specified temperature for a specified time. The width of the resulting stained circle around the bitumen is calculated to determine the staining tendency of the bitumen. The staining tendency has the dimension of length and results are rounded to nearest 0,5 mm.
5 Apparatus
5.1 Rings, square-shouldered as specified in EN 1427 (see Figure 1).
The precision of the method depends upon accurate measurement of the diameter and precise alignment of the face and rim of the ring on a flat surface and it is essential that deformed rings shall not be used.
EN 13301:2010 – Bitumen and bituminous binders – Determination of staining tendency of bitumen