GB/T 15262-1994 《Ambient air--Determination of sulfur dioxide--Formaldehyde absorbing-pararosaniline spectrophotometry》 Related products

The GB/T 15262-1994 standard specifies a method for the determination of sulfur dioxide in the air of the environment by formaldehyde absorption-paracrosine Spectrophotometric method, spectra-trophotometry. This method uses paracrosse aniline to react with sulfur dioxide in the presence of formaldehyde to generate a color-developing substance, and its Absorbance is determined by spectrophotometer to determine the concentration of sulfur dioxide. This standard is suitable for monitoring sulfur dioxide content in the workplace, environment monitoring and pollutant control, providing important data support for protecting the environment and human health.