TAPPI T 684 : 2006
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
GROSS HEATING VALUE OF BLACK LIQUOR
Hardcopy , PDF
02-04-2017
English
21-08-2018
1. Scope
2. Summary
3. Significance
4. Definitions and units
5. Apparatus
6. Calibration
7. Reagents and materials
8. Safety
9. Sampling
10. Procedure
11. Calculation
12. Report
13. Precision
14. Keywords
15. Additional Information
Specifies the gross (or high) heating value of black liquor, containing up to 55% by mass of water, derived from sodium-based kraft pulping.The gross heating value is measured for combustion in an adiabatic or isoperibolic oxygen bomb calorimeter. Complete combustion is ensured by the use of an auxiliary fuel, benzoic acid, to overcome the damping effect of the water in the specimen. The calorimeter water equivalent is determined by calibration with benzoic acid. Detailed procedures are given for carrying out the test and for calculating the gross heating value from the experimental data.
| DocumentType |
Official Test Method
|
| Pages |
7
|
| ProductNote |
Reconfirmed 2006
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| TAPPI T 650 : 2015 | SOLIDS CONTENT OF BLACK LIQUOR |
| ASTM D 2015 : 1996 | Standard Test Method for Gross Caloric Value of Coal and Coke by the Adiabatic Bomb Calorimeter |
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