英文字典中文字典Word104.com



中文字典辭典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z   


安裝中文字典英文字典辭典工具!

安裝中文字典英文字典辭典工具!








  • D2896 Standard Test Method for Base Number of Petroleum Products by . . .
    Paragraph X2 5 5 provides guidance when comparing results using the two different solvents 1 4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals
  • Standard Test Method for Base Number of Petroleum Products by . . .
    1 2 Procedures A and B use different titration solvent volumes and sample weights NOTE 1—A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equiva-lent results 1 3 Appendix X2 provides the use of an alternative solvent
  • Dangers of ASTM D2896 Base Number Testing
    The titrant used in ASTM D2896 is Perchloric Acid This is a very strong acid that is corrosive, an oxidizer and may cause organ damage over prolonged periods of exposure As an oxidizer, it has been known to cause explosions One of the solvents used in this test is Chlorobenzene, a chlorinated solvent that is extremely harmful to the environment
  • ASTM D2896 - Standard Test Method for Base Number of . . . - Savant Lab
    The use of the alternative solvent gives statistically equivalent results; however, the precision is worse Paragraph X2 5 5 provides guidance when comparing results using the two different solvents
  • TOTAL BASE NUMBER (TBN) ACCORDING TO ASTM D2896 ISO 3771 - Xylem
    ACCORDING TO ASTM D2896 ISO 3771 Titration Application Use Determination of basic constituents in petroleum products by potentiometric titration with perchloric acid in glacial acetic acid The total base number (TBN) is the quantity of perchloric acid, expressed in terms of equivalent number
  • ATC White Paper TBN Titration Methods (ASTM D2896 vs ASTM D4739)
    What’s different between the ASTM D2896 and ASTM D4739 methods? The ASTM D2896 and ASTM D4739 methods can be run using the same titration equipment However, there are some key differences to the titration solution and solvent system used, which are listed in the table below ASTM D2896 ASTM D4739 Titration Solution Perchloric acid (HClO 4
  • ASTM International - ASTM D2896-21 - Standard Test Method for Base . . .
    Paragraph X2 5 5 provides guidance when comparing results using the two different solvents 1 4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals
  • ASTM D2896 | Materials Characterization Services
    The use of the alternative solvent gives statistically equivalent results; however, the precision is worse Paragraph X2 5 5 provides guidance when comparing results using the two different solvents 1 4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak


















中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典