Document 8RZJ7errpDR72K6oj7dn5agn5

Table of Occupational Exposure Limit values The following table shows the Occupational Exposure Limits (OEL) for quartz, cristobalite and tridymite in application in Europe and in some other countries. Country Australia Austria Belaium Denmark Finland France Germany Greece Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom USA Occupational Exposure Limit (OEL) Name National Exposure Standard Maximalen ArbeitsplatzKoncentration Threshold Limit Value Occupational Exposure Standard Empoussierage de reference Valeur limite de Movenne d'Exposition Maximalen ArbeitsplatzKoncentration Threshold Limit Value Maximalen ArbeitsplatzKoncentration Maximaal Aanvarde Concentratie Threshold Limit Value Threshold Limit Value Valores Limites Valeur limite de Movenne d'Exposition Maximum Exposure Limit Occupational Exposure Standard Permissible Exposure Limit Threshold Limit Value Adopted by Worksafe Australia, National Occupational Health & Safety Commission Bundesministerium fur Arbeit und Soziales Ministere de l'Emploi et du Travail Direktoratet fot Arbeidstilsvnet National Board of Labour Protection Ministere de l'Industrie (RGIE) Ministere du Travail Grenzwerte in der Luft am Arbeitsplatz Legislation for mining activities 2001 Code of Practice for the Safety, Health & Welfare at Work (CoP) Associazone Italiana Degli Igienisti Industriali Grenzwerte in der Luft am Arbeitsplatz Ministerie van Sociale Zaken en Werkgelegenheid Direktoratet for Arbeidstilsvnet Instituto Portuges da Qualidade, Hygiene & Safety at Workplace Instituto Nacional de Seguridad e Higiene en el Trabaio Instrucciones de Tecnicas Complementarias (ITC) Reglamento General de Normas Basicas de Seguridad Minera National Board of Occupational Safety and Health Health & Safety Executive Quartz (q) 0,2 0,15 0,1 0,1 0,2 5 or 25k/Q 0,1 0,15 0,1 0,05 0,05 0,15 0,075 0,1 0,1 0.1 0,1 5 or 25k/Q 0,1 0,15 0,3 Occupational Safety & Health Administration American Conference of Governmental Industrial Hygienists 10/(%SiO2+2) 0,05 Cristobalite (c) 0,1 0,15 0,05 0,05 0,1 0,05 0,15 0,05 0,4 0,05 0,15 0,075 0,05 0,05 0,05 0,05 0,15 0,3 PEL (Quartz)/2 0,05 Tridymite (t) 0,15 0,05 0,05 01 0,05 0,15 0,05 04 0,05 0,15 0,075 0,05 0,05 0,05 0,05 0,15 03 PEL (Quartz)/2 0,05 Q : quartz percentage Source : Adapted from IMA-Europe Date : 08/05/03, updated version available at http://www.ima-eu.org/en/silhsefacts.html OELs are applicable to 100 % quartz, cristobalite or tridymite. Some countries have special rules for mixed dust, e.g. in France the following equation is applied: Cns/5 + Cq/0.1 + Cc/0.05 +Ct/0.05 < 1 (C = mean concentration, ns = non silicogen)