PRESCODE (Preservative)
| Attribute | Format | Table | Guidelines & Restrictions | Definition |
|---|---|---|---|---|
| C15 | Valid Values | TEST | PRESCODE may be left blank. | The code represents the type of Preservative added to a sample upon collection in the field (e.g., pH adjusted to < 2 with hydrochloric acid). |
| PRESCODE must contain a valid value if populated. | ||||
| Special Notes | ||||
| Multiple PRESCODEs may be used; commas without spaces separate the codes (e.g., "P08,P12"). | ||||