醋酸锰中锰含量检测标准

纳米技术 水溶液中铜、锰、铬离子含量的测定 紫外-可见分光光度法

paper，board and pulp - Determination of manganese

Rubber - Determination of manganese content by atomic absorption spectrometry

Ferromanganese,ferromanganese-silicon,nitrogen-bearing ferromanganese and manganese metal—Determination of manganese,silicon,phosphorus and iron content—Wavelength dispersive X-ray fluorescence spectrometry(Fused cast bead method)

Ferromanganese，ferromanganese-silicon，nitrogen-bearing ferromanganese and manganese metal—Determination of manganese content—Potentiometric method， titrimetric method after ammonium nitrate oxidation and titrimetric method after perchloric acid oxidation

Ferromanganese，ferromanganese-silicon，nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method

Ferromanganese,manganese-silicon alloy and manganese-Determination the content of manganese,silicon,iron and phosphorous-The X-ray fluorescence spectrometry method

standard test method for manganese in gasoline by atomic absorption spectroscopy

Ferrochromium-Determination of manganese content-Flame atomic absorption spectrometric method

Rubber and rubber latices - Determination of manganese content - Sodium periodate photometric methodes

Determination of copper，iron，manganese，zinc，boron and molybdenum content for compound fertilizers

Ferromanganese,ferromanganese-silicon,nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method