4 components: Vinylchloride [CAS:75-01-4] 0.2mg/l Acetaldehyde [CAS:75-07-0] 5mg/l 2-Propanol [CAS:67-63-0] 5mg/l Vinylacetate [CAS:108-05-4] 5mg/l in N,N-Dimethylacetamide ,,CRM, ISO 17034 and ISO 17025,,,, ,,Conservation 6 months.,,,, ,,Store 1 * 1 SET