ICPMS Tuning Solution B 6 components in 1 Vol.-% HNO3: 1mg/l Be, 0.2mg/l In, 0.2mg/l Bi, 0.2mg/l Ce, 0.5mg/l Co, 0.5mg/l Mn Shelf life 8 month after production and min 6 month at start of shipment. After opening the bottle, it is durable for 4 month, but maximum until end of shelf life period.