Re-Advertisement of contract number: FPQ2411/07. Formal price quotations are hereby invited for Helium gas supply and cylinder rental to the Laboratory (Scientific Services). Specifications: Helium gas: • Purity = 99.9995%; • Oxygen = 10ppb; • Moisture = 20ppb; • Total Hydrocarbons = 100ppb; • Carbon Dioxide + Carbon Monoxide =0.5ppm (Note: Gas cylinder sizes are an indication of current items in use, alternative sizes will be considered as the pricing is based per kg of gas supplied). (投標 №115539335cn)