1880

First requirements on cement in France.

1881

Foundation of the Association Internationale pour les Essais des Matériaux (International Association for Materials Testing) and the commission des méthodes d’essai (Test Methods Committee) en France.

1893

The sand from Leucate is advocated as ideal by the Committee.

1910

Foundation of the S.N.L. company by R.Ferret.

1961 à 1990

From NF P15-301 to CEN EN 196-1

1975

Launch of reference materials for cement laboratory calibrations: certified ATILH original, now marketed in more than 70 countries.

1987

A new mean shareholder M GINESTET who develop S.N.L sale at the international

1994

The SNL company settled in the industrial area of Leucate.

1996

Certification ISO 9001

2000

Certification ISO 14001

2007

Shareholding of S.N.L. company is mainly acquired by the ATILH and four French cement manufacturers.

2008

Implementation of the manufacture of sand , ASTM-Type  Graded sand and 20-30 sand

2009

Sand ASTM-Type  C778 graded and 20-30 meet technical specification of the standard apart from the source ( French origin)

2010

Certification OEA

2010

Investment in a modern and automatic workshop to manufacture  Sand on demand

2011

The report of  Terracon (Texas) confirms that samples of sand produced in France by SNL   meet grading and difference in air content bw washed and unwashed sand mortar  requirement of ASTM C778 Graded and 20-30 designation.

2012

Manufacture of sands for calibration to test sieves, now marketed in more than 10 countries in 2014.

2013

Modernization of the CEN 196-1 production workshop to improve the quality of our products and meet the growing demand.

2013

Elaboration of sulfur products, standard sand for sulfur mixtur, Mortar of sulphur type A, type B, lens for sulphur, now marketed in more than 70 laboratories in France and abroad.

2014

Implementation of the manufacture of the MCE sand (Mortar of Concrete Equivalent) , now marketed in France, Italie, Spain, Portugal, England.Espagne, au Portugal et en Angleterre.

2016

33% increase in the capacity of production of CEN 196-1. Capacity of 2.5 millions bags !