CIRAM marché de l'art
CIRAM Measuring the past, innovating the future
ART MARKET Dating and analysis of your art objects
ARCHAEOLOGY Study of the remains of the past
Biosourced Industry Radiocarbon and bio-based products
World leader in Science for Art, Archaeology and Bio-Based Products

around the world

In 2005, CIRAM revolutionised science for art by defining a new approach based on high scientific standards and constructive dialogue with the market.
Since then, on all continents, many players in the art and heritage market have placed their trust in us on a daily basis.


+ 20 000ANALYSIS
salle de vente sotheby's
Auction house Sotheby’s Paris - londres
New York - Hong Kong
Institute INRAP France
Company Bostik France
Museum Du Louvre Paris
Institution DRAC France
Institut CNRS Paris
Company Solvay France
Foundation Giacometti Paris
Company Essilor Paris

“We have been waiting for a laboratory like yours for a long time…”

Mr. Pascal Bertrand, INRAP NAOM

“I became acquainted with the CIRAM laboratory through a magnificent publication … a very professional work, demonstrating the acceptance of CIRAM and its examination methods by the French archaeological community and its services for the State. Thereafter, a very close collaboration was established between us. Their expertise has protected me from mistakes and it is an integral part of a dealer’s duty to consult them in case of any doubt. CIRAM is a serious laboratory that I enjoy working with, particularly because it is independent and not subject to any outside influence. ”

Mr. Jean-David CAHN, gallery owner/dealer of ancient art in Basel

DISCOVER OUR GUIDES Art | Archaeology | Industry > Obtain

Follow our news

Radiocarbon analysis of cosmetics
Friday 9 February 2024
Test the naturalness of your active ingredients, excipients and finished products using radiocarbon analysis with CIRAM laboratories. Carbon 14 and stable isotopes can be used to detect adulteration, authenticate a biobased product or determine botanical provenance or origin.

> See all news

CIRAM insulates its building with bio-sourced materials from Relais Métisse
Friday 9 February 2024

Opt for bio-sourced insulating materials, such as those from Relais Métisse.

CIRAM analyzes your art objects for the Parcours des Mondes
Friday 9 February 2024

Date your objects before the Parcours des Mondes!

CIRAM exhibits and sponsors EAA in Belfast
Friday 9 February 2024

CIRAM is exhibitor and sponsor of the EAA (European Association of Archaeologists), Belfast between August 28 and September 2!

Analysis of organic residues for archaeology
Friday 9 February 2024

Analyzing organic residues for archaeology makes it possible to identify oils, fermented beverages, resins, fats, perfumes used in remote times and understand the habits and customs of ancient peoples.

Radiocarbon analysis of biogas and smoke
Friday 9 February 2024

Radiocarbon analysis of biogas and smoke by CIRAM. Biogas offers new prospects for biofuels. In addition, the analysis of chimney smoke is one of the criteria for establishing the carbon footprint of industrial companies. Radiocarbon or carbon 14 will quantify the biogenic and fossil parts of these gaseous materials.


CIRAM laboratories are specialized in dating of your works of art, your archaeological artifacts, as well as the analysis of your biobased products worldwide.

Thanks to the know-how and experience of our scientists as well as state-of-the-art equipment, CIRAM is a specialist in radiocarbon dating and the analysis of your biobased products.

Thermoluminescence dating, carbon-14 dating, microanalysis, spectrometry, discover all our methods as well as our fields of application.

CIRAM, analytical laboratory for the art market

For more than seventeen years now, CIRAM laboratories have been revolutionizing science in the art market worldwide.

Museums, antique dealers, auction houses or institutions trust us for the dating and authentication of their works of art.

Thanks to our scientists and rigorous and relevant analyses, we deliver a rigorous and reliable expertise.

The dating of all materials

It is possible to date and analyze all works. In our laboratories, we study objects composed of:

  • Wood, ivory, paper and textile by carbon-14 dating;
  • Terracotta, earthenware and ceramics by thermoluminescence to date the last firing of the material;
  • Bronze, iron, silver and gold by scanning electron microscopy;
  • Glass and enamel by X-ray fluorescence;
  • All stones by optical and electron microscopy.

For the dating of artworks, we mainly use carbon-14 or thermoluminescence dating, but it is possible to couple them with other methods to obtain an accurate result.

The analysis of paintings

The dating of a painting or a pictorial work also allows the authentication of the object, it is also a preliminary step in the framework of a restoration.

To analyze a painting, we proceed by imaging with:

  • Grazing light: a technique carried out using a halogen lamp. It allows us to define the state of conservation of the varnish and pictorial layers as well as the presence of alterations or the presence of restorations already made;
  • Natural light;
  • Ultra-violet imaging: this method makes visible the surface repaints present on the varnish;
  • Transmitted light;
  • X-ray radiography: highlights areas of restoration and gives an idea of the general state of conservation of the painting;
  • Infrared reflectography: which will reveal the preparatory drawings as well as a hidden signature.

Laboratories for the analysis of materials found in archaeological contexts

The CIRAM laboratories also work with objects found in archaeological contexts. In these cases, we offer, in addition to laboratory analysis by sample, to come to the site with mobile equipment to analyze the remains in context.

CIRAM performs dating and material analysis services for preventive archaeology.

Dating and characterization in archaeology

Carbon-14 dating is the first analysis done in archaeometry. This analysis technique allows us to date all organic materials, we measure the 14 isotope of carbon present in the material.

To meet all your needs and constraints related to archaeology, our laboratory scientists also offer:

  • Isotopic analysis: the isotopes of carbon, nitrogen and sulfur give important information about the diets of the time. We use this analysis technique on bones and teeth;
  • Organic residue analysis: this allows us to study the remains of food or drink contained in archaeological artifacts;
  • X-ray imaging and 3D tomography: our teams examine artifacts using imaging to check the state of conservation in real time without touching the object;
  • Anthracology and xylology: our scientists also analyze the wood or charcoal. Thanks to their knowledge, our teams study the properties of wood and identify species or species.

By combining all the methods, the analysis of your objects in an archaeological context is both reliable and complete.

Bio-based analysis laboratories

CIRAM laboratories verify, analyze and certify your bio-based products. Our scientists use EN 16640, ASTM D6866, EN ISO 21644, EN ISO 16620, EN 16785.
Our laboratories:

  • Measure the biobased vs fossil fraction in products to define the natural and the synthetic parts;
  • Check raw materials and validate regulatory and normative compliance;
  • Certify products to obtain an eco-label or other certification.

The fields of application of our analyses

The CIRAM laboratories offer the analysis of biobased products in the fields:

  • Food;
  • Biofuels;
  • Biopolymers;
  • Cosmetics;
  • Construction;
  • Pigment, paper, packaging;
  • Solid recovered fuel.

CIRAM laboratories, the reference for analysis and dating

For more than seventeen years, CIRAM laboratories have been the reference for the dating and characterization of your objects in an archaeological context or in the art world.

Microanalysis, metallography, spectrometry, chromatography, imaging, etc. For more information on our fields of application and analysis, contact us.