Hellma Liquid Filter Set 667-EP1001 UV/Vis

Filter base set type 667-EP1001 for checking the spectrophotometer according to EP 10 in the UV and Vis range, filter set consisting of 3 glass filters and 10 liquid filters: Check for stray light with sodium nitrite in ultrapure water (UV11) and reference filter ultrapure water (UV12), certified at wavelength 385 nm (cut-off); check for wavelength accuracy holmium in perchloric acid (UV5) and reference filter perchloric acid (UV14), certified at wavelengths: 241, 287, 361, 451, 485, 536, 640 nm; verification of resolving power with toluene in hexane (UV6) and reference filter hexane (UV9) certified at wavelength range: 265 - 270 nm; verification of photometric accuracy and linearity in the UV range with niacin filters with concentrations: 6, 12 and 24 mg/l, with the absorptions from 0.25 to 1.0 Abs (UV506/UV512/UV524) and HCl reference filter (UV599) certified at wavelengths: 213, 261 nm; verification of photometric accuracy and linearity in the Vis range with neutral glass filters (F2, F3, F4) with the absorptions: 0.25 / 0.5 / 1.0, certified at wavelengths: 440; 465; 546.1; 590; 635 nm, filter set in high-quality storage box with DAkkS calibration certificates and and Hellma Analytics calibration certificate Attention: item available until 30.06.2022 available. Further information will follow.