SOME EXAMPLES of TESTING from analysis methods
Certificate No. 3, No. 8: Laser mass spectrometry method.
This basic method has good, but insufficient detection limits for our quality, but allows measuring oxygen at least at the level of “no more than 2 ppm”. All elements with some exceptions in Fe and Ag are always below the limits of testing.
Certificate No. T6-7, No. T7-17: Laser mass spectrometry and atomic emission spectral methods.
The elements P and Zn are measured by the atomic emission spectral method with better limits <0.1 ppm.
Certificate No. T10-28: Mass Spectrometry with Glow Discharge.
Better measurement limits. Oxygen is not measured. The indicators are good, but not well enough measured by Al, Si, As, Se, Sn, Sb, Te, which is typical of the standard method. The description of the proposed quality is taken into account. LMS for Si is always <0.1 ppm. The SSMS method for these elements is generally <0.02 ppm