Sodium Chloride is needed for analysis EMSURE ACS, ISO,Reag. Ph Eur. 

Merck EMSURE® salts for analysis: The best specifications in the world. Merck EMSURE® salts for analysis are far ahead of the crowd with their high level of purity, often even exceeding international standards like ACS or ISO. They fulfill also the requirements of reagents for pharmacopeia analysis. That’s why Merck’s EMSURE® salts for analysis also meet the high demands of customers who carry out quality assurance in the pharmaceutical industry. These reagents are designated as ACS and Reag. Ph Eur.