BS EN ISO 3405 pdf free download

BS EN ISO 3405 pdf free download.Methods of test for petroleum and its products — BS 2000-123: Petroleum products — Determination of distillation characteristics at atmospheric pressure (ISO 3405:2000) — (Identical with IP 123-2001).
3? Terms and definitions For the purposes of this International Standard, the following terms and definitions apply. 3.1 decomposition point thermometer reading (corrected) which coincides with the first indications of thermal decomposition of the liquid in the flask NOTE? Characteristic indications of thermal decomposition are an evolution of fumes and erratic thermometer readings which usually show a decided decrease after any attempt has been made to adjust the heat. 3.2 dry point thermometer reading (corrected) that is observed at the instant the last drop of liquid evaporates from the lowest point in the flask; any drops or film of liquid on the side of the flask or on the thermometer are disregarded NOTE? The end-point (final boiling point), rather than the dry point is intended for general use. The dry point can be reported in connection with special purpose naphthas, such as those used in the paint industry. Also, it is substituted for the end-point (final boiling point) whenever the sample is of such a nature that the precision of the end-point cannot consistently meet the requirements given in clause 1 2. 3.3 end-point final boiling point maximum thermometer reading (corrected) obtained during the test NOTE? This usually occurs after evaporation of all liquid from the bottom of the flask. 3.4 initial boiling point thermometer reading (corrected) that is observed at the instant that the first drop of condensate falls from the lower end of the condenser tube 3.5 percent evaporated sum of the percent recovered and the percent loss 3.6 percent loss 1 00 minus the total recovery NOTE? Sometimes called “front-end loss”; this is the amount of uncondensed material lost in the initial stages of the distillation. 3.7 corrected loss percent loss corrected for barometric pressure 3.8 percent recovered volume of condensate observed in the receiving graduated cylinder at any point in the distillation, expressed as a percentage of the charge volume, in connection with a simultaneous temperature reading 3.9 percent recovery maximum percent recovered, as observed in accordance with 9.1 0 3.10 percent residue volume of residue measured in accordance with 9.1 1 , and expressed as a percentage of the charge volume 3.11 percent total recovery combined percent recovery and residue in the flask, as determined in accordance with 1 0.1 3.12 thermometer reading temperature recorded by the sensor of the saturated vapour measured in the neck of the flask below the vapour tube, under the specified conditions of this test 3.13 temperature reading thermometer or temperature-measurement device reading (3.1 2) which is corrected to 1 01 ,3 kPa barometric pressure 3.14 emergent stem effect offset in temperature reading caused by the use of a total immersion mercury-in-glass thermometer in the partial immersion mode NOTE? The emergent part of the mercury column is at a lower temperature than the immersed portion, resulting in a lower temperature reading than that obtained when the thermometer was completely immersed for calibration. 3.15 temperature lag offset in temperature reading between a mercury-in-glass thermometer and an electronic temperature- measurement device, caused by the different response time of the systems involved. BS EN ISO 3405  pdf download.