1PPM
no cuz it can be aas weak or as strong as you want it to be
Cobalt testing can be performed using various methods, including spectrometry techniques like atomic absorption spectroscopy (AAS), inductively coupled plasma mass spectrometry (ICP-MS), or X-ray fluorescence (XRF). Samples are prepared by dissolving them in suitable solvents or acids, followed by analysis to determine cobalt concentration. Additionally, colorimetric tests can be used for simpler applications, where cobalt ions react with specific reagents to produce a measurable color change. Safety precautions should be taken, as cobalt compounds can be hazardous.
AAS stands for Angle Angle and Side
Aas-Jakobsen was created in 1937.
Thomas Aas died in 1961.
Thomas Aas was born in 1887.
Karl Aas died in 1943.
Karl Aas was born in 1899.
Ulf Aas died in 2011.
Ulf Aas was born in 1919.
Rolf Aas died in 1946.
Rolf Aas was born in 1891.