Data Item _pdbx_exptl_pd.spec_preparation_pH
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General 
- Item name
- _pdbx_exptl_pd.spec_preparation_pH
- Category name
- pdbx_exptl_pd
- Attribute name
- spec_preparation_pH
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The pH at which the powder sample was prepared.
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.0 | +∞ |