ASME PTC 12.3 1997 R2019
$98.04
ASME PTC 12.3-1997 – Performance Test Code on Deaerators – Reapproved 2019
| Published By | Publication Date | Number of Pages |
| ASME | 1997 | 64 |
This Code provides rules and test procedures that are to be used to determine the performance of deaerators with regard to residual dissolved oxygen in the deaerated water and terminal temperature difference (TTD), if any, between the deaerated water and the saturated steam temperature corresponding to the pressure in the steam zone adjacent to the interface between the steam and the collected deaerated water. This Code applies to deaerating heaters and deaerators equipped with either shell-and-tube or direct contact, vent-condensing sections. It describes the test method for the determination of dissolved oxygen in water for deaerating equipment at concentrations up to 75 ?g/L (ppb).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | Foreword |
| 6 | Notice |
| 7 | Committee Roster |
| 8 | Board Roster |
| 9 | CONTENTS |
| 11 | Section 0 introduction |
| 13 | 1 Object and Scope |
| 15 | 2 Definitions and Rescription of Terms |
| 17 | 3 Guiding Principles |
| 20 | Figures 1 Method and Apparatus for the Detection of Free Air |
| 21 | 4 Instruments and Methods of Measurement |
| 22 | 2 500 mLSampleFlask for Dissolved Oxygen Determination |
| 23 | 3 Micro Buret |
| 25 | Tables 4.1 Reagents Required for Dissolved Oxygen Test Method |
| 28 | 4 General Arrangement for Sampling Apparatus |
| 31 | 5 Procedure for Preparation of Samples for Titration |
| 33 | 5 Computation of Results |
| 36 | 5.1 Approximate Effect of Various Interfering Compounds on Standard Bias Limit |
| 39 | 6 Reportof Test 6.1 General Information and Description of Equipment |
| 40 | 6.2 Test Operating Conditions |
| 41 | 6.3 Analytical Data |
| 43 | 7 Detailed Uncertainty Analysis for Dissolved Oxygen |
| 45 | Appendices A Starch Titration |
| 49 | B On-Line Analyzer Method |
| 51 | C Colorimetric Method |
| 53 | D Example Calculations |
| 54 | D.1 Illustration of Dissolved Oxygen Test Results |
| 55 | D.2 Breakdown of Measurement Component Errors into Elemental Errors |
| 56 | D.3 Bias Limits and Precision indices D.4 Example of Outliers Determination |
| 57 | D.5 Two-Tailed Student’s t Table for the 95% Confidence Level D.6 Modified Thompson T (at the 5% Significance Level) |
| 59 | E Typical DeaeratorSamplePointLocations |
| 61 | F References |