We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
Standard Test Method for Low-Level Dissolved Oxygen in Water
STANDARD published on 1.2.2015
Designation standards: ASTM D5543-15
Note: WITHDRAWN
Publication date standards: 1.2.2015
SKU: NS-614690
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
ampoules, boiler, boiler feedwater, colorimetric analysis, dissolved oxygen, oxygen, oxygen sensitive indicator, steam, steam condensate, petroleum refining, power generation,, ICS Number Code 13.060.50 (Examination of water for chemical substances)
Significance and Use | ||||||||||||
5.1 Dissolved oxygen is detrimental in certain boiler and steam cycles because it may accelerate corrosion. Concentrations above 10 μg/L are unacceptable in many high-pressure boiler systems. The efficiency of dissolved oxygen removal from boiler feedwater by chemical or mechanical means, or both, is determined by measuring the concentration before and after the process. The measurement is also made to check for air leakage into the boiler system. 5.2 The oxygen treatment method for boiler corrosion reduction requires injection of oxygen into the boiler feedwater. The resulting oxygen level is monitored for control purposes. |
||||||||||||
1. Scope | ||||||||||||
1.1 This test method covers the rapid determination of low-level (<100 μg/L) dissolved oxygen in thermal-cycle steam condensate, deaerated boiler feedwater, boiler water, and deaerated deionized water. Color comparators allow the estimation of concentrations ranging from 0 to 100 μg/L (ppb) oxygen. 1.2 This test method may be applicable to electronic-grade, pharmaceutical-grade, and other high-purity waters, although these were not addressed in the collaborative study. 1.3 It is the user's responsibility to ensure the validity of this test method for waters of untested matrices. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
||||||||||||
2. Referenced Documents | ||||||||||||
|
Historical
15.6.2013
Historical
1.10.2009
1.5.2015
Historical
15.5.2014
Historical
15.6.2012
Historical
1.5.2011
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
Latest update: 2024-05-09 (Number of items: 2 898 531)
© Copyright 2024 NORMSERVIS s.r.o.