| 摘要 |
FIELD: anti-fire means. SUBSTANCE: odorant intended to be an alarm factor in zones with elevated fire hazard is dissolved in condensed gas in vessel 3 under pressure producing standard gas solution containing liquid phase 6 and gas phase 7. Consumer's gas is diluted with appropriate amount of standard gas liquid phase, which is evaporated prior to be mixed. Arrangement has means for correcting ratios of the two gas streams to be mixed in dependence on increase in odorant concentration in standard gas liquid phase 6 leading to lowering liquid phase to gas phase ratio thereby providing extremely accurate standard gas dosing. EFFECT: increased accuracy of procedure. 1 dwg |
