Guangdong Stainless Steel CastingThere has always been no consistent rule for the determination of manganese content in the manganese, and various methods vary widely. For the promulgation of national standards, here is a summary and preservation for emergency needs.

To measure Mn in precision casting, you can find the relevant national standard, for example: Determination of manganese content GB/T 5121.14-2008, you can find the specific answer to your needs, and there is a very specific process.

As for what brand of 721 measurement standard is accurate, you can first refer to which national standard and see which wavelength the actual measurement is measured at. If it is within 360-1000, choosing 721 can solve the problem, otherwise it needs UV-Vis spectrophotometry. count. If the budget is sufficient, you can choose the Japanese one; if the budget is small, you can choose the domestic one.

In short,Coffee machine accessoriesThe Mn content of the standard steel in precision casting is given and known. After the standard steel is processed, you prepare a series of solutions with different concentrations c, and then measure the absorbance value A to make a standard curve; then use your manufactured The absorbance value of the sample solution is measured, and the Mn concentration is obtained according to the curve, and the Mn content of the sample can be calculated.

The formula is actually A=εbc, A is measured by you with a spectrophotometer,Robot stainless steel accessoriesThe c of the standard steel is known, and the Ac curve can be drawn. b-liquid layer thickness, ε-molar absorption coefficient.