JB/T 9225-1999
Method for chemical analysis of clay and bentonite for fonudry (English Version)
- Standard No.
- JB/T 9225-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- 2014-07
- Replace By
- JB/T 9227-2013
- Latest
- JB/T 9227-2013
- Scope
- This standard specifies chemical analysis methods for clay and bentonite used in castings. This standard is applicable to the determination of the following chemical components, cation exchange capacity, and exchangeable cation content in foundry clay and bentonite. The measurement range is as follows: Loss on ignition 0.5% to 15%; Silica 50% to 75%; Aluminum oxide 10% ~ 30%; Iron oxide 0.1% ~ 7%; Titanium oxide 0.05% ~ 2%; Calcium oxide 0.1% ~ 7% Magnesium oxide 0.1% ~ 7% Manganese oxide 0.01% ~ 0.1%; Potassium oxide 0.1% ~4% sodium oxide 0.1%~4%; cation exchange capacity 10~100m mol(NH|(4)^(+)/100 g soil; exchangeable calcium ions 1~60 m mol(1/2Ca^(2= ))/100 g soil; exchangeable magnesium ions 0.1～10 m mol(1/2Mg^(2+)/100 g soil; exchangeable sodium ions 1～60 m mol(Na^(+)/100 g soil; Exchangeable potassium ion 0.5～10 m mol(K^(+)/100 g soil.
JB/T 9225-1999 history
- 2013 JB/T 9227-2013 Bentonite for foundry
- 1999 JB/T 9225-1999 Method for chemical analysis of clay and bentonite for fonudry
JB/T 9225-1999 Method for chemical analysis of clay and bentonite for fonudry was changed to JB/T 9227-2013 Bentonite for foundry.
