Dear colleagues,
It is our pleasure to invite you to take part in proficiency testing № PTS 21/07
by means of an interlaboratory comparison, including testing and sample taking with subsequent testing.
Subject of testing will be the product “Asphalt mixture” and “Bitumen” under standard methods and parameters, which are given below.
Subject of sample taking will be “Aggregates (fine or all-in material)” according to EN 932-1:1996, item 8.8 with subsequent testing for determination of “loose bulk density” according to EN 1097-3:1998.
Subjects of the proficiency testing
Asphalt mixture
Testing
Code of the standаrd | Name of the standard | Parameter |
---|---|---|
EN 12697-6:2020, Procedure В (item 9.3) |
Bituminous mixtures - Test methods - Part 6: Determination of bulk density of bituminous specimens |
Bulk density |
EN 12697-5:2018, Procedure А (item 9.2) |
Bituminous mixtures - Test methods - Part 5: Determination of the maximum density |
Maximum density |
EN 12697-34:2020, S |
Bituminous mixtures - Test methods - Part 34: Marshall test |
Stability |
EN 12697-34:2020, F |
Bituminous mixtures - Test methods - Part 34: Marshall test |
Flow |
Bitumen
Testing
Code of the standаrd | Name of the standard | Parameter |
---|---|---|
EN 1426:2015 |
Bitumen and bituminous binders - Determination of needle penetration |
Penetration |
EN 1427:2015 |
Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method |
Softening point |
EN 15326:2007+A1:2009 |
Bitumen and bituminous binders - Measurement of density and specific gravity - Capillary-stoppered pyknometer method |
Density |
EN ISO 2592:2017 |
Petroleum and related products — Determination of flash and fire points — Cleveland open cup method |
Flash point |
EN 12607-1:2014 |
Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 1: RTFOT method |
Percentage of change in mass |
EN 12607-1:2014; EN 1426:2015 |
Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 1: RTFOT method; Bitumen and bituminous binders - Determination of needle penetration |
Percentage of retained penetration at 25 ℃ |
EN 12607-1:2014; EN 1427:2015 |
Bitumen and bituminous binders - Determination of the resistance to hardening under influence of heat and air - Part 1: RTFOT method; Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method |
Change in ring and ball softening point |
Aggregates
Sampling
Code of the standаrd | Name of the standard | Parameter |
---|---|---|
EN 932-1:1996 item 8.8 |
Tests for general properties of aggregates - Part 1: Methods for sampling. Reduction for obtaining a sub-sample according to EN 932-1:1996, item 9 (a selection or combination of items 9.2, 9.3, 9.4, 9.5, 9.6) |
Subsequent testing for determination of “loose bulk density” according to EN 1097-3:1998 |