Search
    Cart(0)
      总价
      前往结算
      您的购物车是空的 : )

      QX/T 216-2013 "Determination of formaldehyde in the atmosphere, phenolic reagent Spectrophotometric method, spec-trophotometry" specifies a method for the determination of formaldehyde in the atmosphere using phenolic reagent Spectrophotometric method, spec-trophotometry. This standard is applicable to the monitoring and analysis of formaldehyde concentration in the atmospheric environment. The principle is that formaldehyde reacts with phenolic reagents to form colored compounds, and the measurement of its Absorbance at a specified wavelength determines the formaldehyde concentration.

      This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
      Status Active
      CCS (A47) 气象学 ICS (07.060) 地质学、气象学、水文学
      Release Date 2013-12-22 00:00:00 Implementation Date 2014-05-01 00:00:00
      45 in total
      filter
      Featured Hot Price Time
      YueFeng 752N Ultraviolet-visible Spectrophotometer
      $651.00 SE
      YueFeng 752N Ultraviolet-visible Spectrophotometer
      Single beam of light (1200/mm holographic light)4nm200~960nm
      +Compare
      YueFeng 770 Ultraviolet-visible Spectrophotometer
      $2186.00 SE
      YueFeng 770 Ultraviolet-visible Spectrophotometer
      Proportional double beam of light, 1200/mm Holographic grating2nm190~1100nm
      +Compare
      YueFeng 723S (PC) Visible Spectrophotometer 325nm~ 1100nm
      $980.00 SE
      YueFeng 723S (PC) Visible Spectrophotometer 325nm~ 1100nm
      Aberration Elimination (1200L/mm Grating)2nm325~1100nm
      +Compare
      YueFeng 754 Ultraviolet-visible Spectrophotometer 195~ 1000nm Bandwidth 4.0nm
      $792.00 SE
      YueFeng 754 Ultraviolet-visible Spectrophotometer 195~ 1000nm Bandwidth 4.0nm
      Aberration Elimination (1200L/mm Grating)4nm195m~1000nm
      +Compare
      YueFeng UV756 (PC) Ultraviolet-visible Spectrophotometer with PC software
      $1356.00 SE
      YueFeng UV756 (PC) Ultraviolet-visible Spectrophotometer with PC software
      Aberration Elimination (1200L/mm Grating)2nm190~1100nm
      +Compare
      YueFeng UV759 Ultraviolet-visible Spectrophotometer Wavelength: 190m~ 1100nm
      $1262.00 SE
      YueFeng UV759 Ultraviolet-visible Spectrophotometer Wavelength: 190m~ 1100nm
      Aberration Elimination (1200L/mm Grating)1.8nm190~1100nm
      +Compare
      YUE FENG 723N visible Spectrophotometer  with USB interface and PC software
      $901.00 SE
      YUE FENG 723N visible Spectrophotometer with USB interface and PC software
      Aberration (1200L/mm Grating)4.0nm325~1100nm
      +Compare
      YueFeng 770S Ultraviolet-visible Spectrophotometer full-band/sub-band scanning
      $2515.00 SE
      YueFeng 770S Ultraviolet-visible Spectrophotometer full-band/sub-band scanning
      Proportional double beam of light, 1200/mm Holographic grating190~1100nm2nm
      +Compare
      Focus on online sales of Lab Testing Instruments