kSIST FprEN 12697-27:2026

• Abstract:

  This document specifies test methods for sampling bituminous mixtures for roads and other paved areas to determine their physical properties and composition.

• Status: Not Published
• Public Enquiry End Date: 28-May-2025
• ICS: 93.080.20 - Road construction materials
• Technical Committee: CES - Roads
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 03-Nov-2026
• Due Date: 22-Dec-2026
• Ref Project: FprEN 12697-27 - Bituminous mixtures - Test methods - Part 27: Sampling

• Revises: SIST EN 12697-27:2017 - Bituminous mixtures - Test methods - Part 27: Sampling
• Effective Date: 21-Feb-2024

kSIST FprEN 12697-27:2026 is a draft standard for sampling bituminous mixtures, issued through SIST and aligned with prEN 12697-27. It specifies how to take samples from roads and other paved areas so that their physical properties and composition can be checked from material that represents the work.

What does kSIST FprEN 12697-27:2026 specify?

kSIST FprEN 12697-27:2026 specifies sampling methods for bituminous mixtures used on roads and other paved areas. The aim is to obtain samples that can be used to determine physical properties and composition in later testing.

The document is organized into six clauses:

• Clause 1 Scope
• Clause 2 Normative references
• Clause 3 Terms and definitions
• Clause 4 Methods of obtaining bulk samples from all materials except coated chippings
• Clause 5 Sampling coated chippings from stockpiles
• Clause 6 Marking and packaging of laboratory samples

Clause 4 covers several sampling situations, including lorry loads, mixer transporters, pavers, heaps, trenches, cores, slabs, continuous process plants, and material hopper/paver sampling. Clause 5 gives a separate method for coated chippings from stockpiles, and Clause 6 sets the reporting and packaging rules that keep samples traceable and usable.

What are the key requirements of kSIST FprEN 12697-27:2026?

kSIST FprEN 12697-27:2026 is mainly a field sampling standard. Its most important requirements are the sampling location, the number and mass of increments, the way samples are combined, and the handling needed to avoid segregation, contamination, or damage.

• Lorry loads and hopper/paver sampling - Clause 4 requires multiple increments from widely spaced positions, with minimum masses set by aggregate size. In practice, this reduces the risk that only the surface or one part of the load is sampled. Steel sampling tubes are used for some lorry and hopper samples, and pipe size M is not used when the nominal maximum aggregate size is greater than 16 mm.
• Mastic asphalt during discharge - Clause 4 requires shovel sampling at the outlet chute after one third of the material has been discharged. A bucket is not used because coarse aggregate can settle during collection, and the sample can then become unrepresentative.
• Paver augers and workable heaps - Clause 4 requires increments from both sides of the paver only when the augers are charged throughout their length, and it requires deeper sampling from heaps than from the outer surface. This matters because the outer layer may not match the material inside the heap.
• Laid but not rolled material - Clause 4 permits sampling from a cut trench and from sampling trays, but not for surface course material or when the layer thickness minus nominal aggregate size is less than 20 mm. This protects against taking a sample that is too thin or too disturbed to represent the layer.
• Cores and slabs from compacted material - Clause 4 uses coring for thickness, compacted density, void content, and other further investigation, with larger diameters used for binder content and grading. Slab removal by hacking out or sawing out is used where physical properties are to be measured and the sample must be protected from distortion.
• Continuous process plants - Clause 4 allows sampling from a slat conveyor using a full-width slot and a timer, with at least 8 kg discharged into a removable container. This gives a controlled way to sample plant output.
• Coated chippings - Clause 5 requires 10 increments from stockpiles, taken from different positions and away from the outer surface, to give a total mass of at least 25 kg. This helps avoid contamination from the stockpile surface.
• Marking, report, and packaging - Clause 6 requires each sample or container to be clearly marked and accompanied by a sampling report, and it requires packaging that prevents contamination or damage. Where water is present in the mixture, the container is sealed to prevent evaporation.

What terms does kSIST FprEN 12697-27:2026 define?

kSIST FprEN 12697-27:2026 defines five core sampling terms in Clause 3, and they are the basis for how the sample is described and used.

• Increment - a single quantity of material taken from a larger body under examination.
• Bulk sample - a sample made by combining increments so there is enough material for all required purposes.
• Representative sample - a sample made from a specified number of increments intended to represent a specific quantity or area of material.
• Spot sample - a sample taken in one operation at one place and one time.
• Laboratory sample - the sample sent to the laboratory, whether it is the whole bulk sample or part of it, and it must be sufficient for all required tests.

Who uses kSIST FprEN 12697-27:2026?

kSIST FprEN 12697-27:2026 is used by road contractors, asphalt plant operators, test laboratories, purchasers, suppliers, and quality managers working with road construction materials. It supports routine production control, acceptance sampling, and investigation of placed material when physical properties, binder content, grading, thickness, density, or void content need to be checked.

What changed in kSIST FprEN 12697-27:2026 from the previous edition?

kSIST FprEN 12697-27:2026 will supersede EN 12697-27:2017. The foreword records two significant technical changes: deletion of the paragraph describing the applicability of the document, and added guidance in Clause 6.2 for packaging bulk samples that contain water.

Which standards are used with kSIST FprEN 12697-27:2026?

kSIST FprEN 12697-27:2026 refers to two standards.

• EN 58, Bitumen and bituminous binders - Sampling bituminous binders - Clause 3 uses its terms and definitions together with the terms defined in this document.
• EN 12697-20, Bituminous mixtures - Test methods - Part 20: Indentation using cube or Marshall specimens - Clause 4 uses it for the minimum specimen size needed when samples are prepared for further investigation of thickness, compacted density, void content, binder content, and grading.

What does the kSIST FprEN 12697-27:2026 document contain?

kSIST FprEN 12697-27:2026 contains procedural sampling methods rather than formulas or calculation rules. Figures 1 to 8 show the apparatus and field set-ups, including typical shovels, scoops, tubes, the removal slot, and the slab-support arrangement used during removal. Figure 9 shows an example of drawing three bulk samples with a sampling tube. The document also includes a bibliography entry for BS 3388:1973.

SLOVENSKI STANDARD
oSIST prEN 12697-27:2025
01-maj-2025
Bitumenske zmesi - Preskusne metode - 27. del: Vzorčenje
Bituminous mixtures - Test methods - Part 27: Sampling
Asphalt - Prüfverfahren - Teil 27: Probenahme
Mélanges bitumineux - Méthodes d'essai - Partie 27: Prélèvements d'échantillonnage
Ta slovenski standard je istoveten z: prEN 12697-27
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
oSIST prEN 12697-27:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 12697-27:2025
oSIST prEN 12697-27:2025
DRAFT
EUROPEAN STANDARD
prEN 12697-27
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2025
ICS 93.080.20 Will supersede EN 12697-27:2017
English Version
Bituminous mixtures - Test methods - Part 27: Sampling
Mélanges bitumineux - Méthodes d'essai - Partie 27: Asphalt - Prüfverfahren - Teil 27: Probenahme
Prélèvements d'échantillonnage
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 227.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12697-27:2025 E
worldwide for CEN national Members.

oSIST prEN 12697-27:2025
prEN 12697-27:2025 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Methods of obtaining bulk samples from all materials except coated chippings . 5
4.1 Sampling from a lorry load of material . 5
4.1.1 Apparatus . 5
4.1.2 Procedure . 5
4.2 Sampling mastic asphalt during discharge from a mixer transporter . 5
4.2.1 Apparatus . 5
4.2.2 Procedure . 6
4.3 Sampling from the material around the augers of the paver . 6
4.3.1 Apparatus . 6
4.3.2 Procedure . 6
4.4 Sampling of workable material in heaps . 6
4.4.1 Apparatus . 6
4.4.2 Procedure . 6
4.4.3 General . 7
4.4.4 Apparatus . 7
4.4.5 Procedure . 7
4.5 Sampling from the laid but not rolled material from a cut trench . 7
4.5.1 General . 7
4.5.2 Apparatus . 7
4.5.3 Procedure using sampling shovel . 7
4.5.4 Procedure using asphalt sampling scoop . 8
4.6 Sampling of laid and compacted materials by coring . 8
4.6.1 Apparatus . 8
4.6.2 Procedure . 8
4.7 Sampling of laid and compacted material by hacking out or sawing out slabs . 8
4.7.1 Apparatus . 8
4.7.2 Procedure . 9
4.8 Sampling from the slat conveyor of a continuous process plant . 9
4.8.1 Apparatus . 9
4.8.2 Procedure . 9
4.9 Sampling from material hopper/paver . 9
4.9.1 Apparatus . 9
4.9.2 Procedure . 10
5 Sampling coated chippings from stockpiles . 10
5.1 Apparatus . 10
5.2 Procedure . 10
6 Marking and packaging of laboratory samples . 10
6.1 Sampling report . 10
6.2 Packaging . 11
Bibliography . 16
oSIST prEN 12697-27:2025
prEN 12697-27:2025 (E)
European foreword
This document (prEN 12697-27:2025) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12697-27:2017.
prEN 12697-27:2025 includes the following significant technical changes with respect to
EN 12697-27:2017.
— [European Foreword] deletion of paragraph describing the applicability of this document.
— [Clause 6.2] added description for packaging of bulk samples containing water.
oSIST prEN 12697-27:2025
prEN 12697-27:2025 (E)
1 Scope
This document specifies test methods for sampling bituminous mixtures for roads and other paved areas
to determine their physical properties and composition.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 12697-20, Bituminous mixtures - Test methods - Part 20: Indentation using cube or Marshall specimens
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 58 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
ISO Online browsing platform: available at https://www.iso.org/obp/
IEC Electropedia: available at https://www.electropedia.org/
3.1
increment
single quantity of material taken from a larger body of the material under examination
3.2
bulk sample
sample obtained when increments from the material being sampled are combined to provide sufficient
material for all required purposes
3.3
representative sample
sample consisting of a specified number of increments purposely taken to represent a specific quantity
or area of material
Note 1 to entry: A representative sample is assumed to have the same composition as the material sampled,
within the limits of precision associated with the method of sampling.
3.4
spot sample
sample of material taken in a single operation at a single place and time of the material being sampled
Note 1 to entry: If it can be assumed that the material is homogeneous, a spot sample can be regarded as a
representative sample. If the material is not homogeneous, a spot sample only can be regarded as representative of
a limited region around the sampling point.
3.5
laboratory sample
sample despatched to the laboratory
Note 1 to entry: It can be the whole or part of the bulk or representative sample. A laboratory sample is assumed
to be of sufficient quantity for all tests required.
oSIST prEN 12697-27:2025
prEN 12697-27:2025 (E)
4 Methods of obtaining bulk samples from all materials except coated chippings
4.1 Sampling from a lorry load of material
4.1.1 Apparatus
a) sampling shovel (such as that shown in Figure 1); or
b) sampling scoop (such as that shown in Figure 2) for materials whose nominal size is 16 mm and
smaller; or
c) sampling tube of stainless steel (see Figure 3 and Figure 4). Pipe size M may not be used when the
nominal maximum size for aggregate is greater than 16 mm.
4.1.2 Procedure
4.1.2.1 Using a sampling shovel or scoop, take a minimum of four increments of approximately:
a) 2 kg each for material containing aggregate of nominal size equal or smaller than 16 mm;
b) 3 kg each for material containing aggregate of nominal size larger than 16 mm.
For mixtures with aggregate size ≥ 32 mm eight increments is recommended.
Take the increments from about 100 mm below the surface of the material from different positions as
widely spaced as practicable but not closer than 300 mm from the side of the lorry. Remove all the surface
material including any coarse material that may fall into the hole during sampling.
With some less cohesive materials the use of a metal plate, pushed into the material to facilitate digging
100 mm down is recommended to stop surface material falling into the hole.
4.1.2.2 Using a sampling tube (size M or N), take a minimum of three increments of approximately
4 kg.
To enable representative sampling the lorry should be loaded with at least half the volume with current
material.
Take the increments of the material from different positions as widely spaced as practicable but not
closer than 0,5 m from the side of the lorry. Push the tube horizontally in the mass and so far that the
entire tube is filled. Pull out the tube and empty the contents into the packaging.
NOTE When more than one bulk sample is needed, an example of sample drawing for three bulk samples is
given in Figure 9.
4.1.2.3 Combine the increments obtained to form the bulk sample.
The number of increments spe
...