Records and preservation

Records and preservation. Archaeologists should work actively for the preservation of archaeological collections, records, and reports... 

Preserve relevant records and equipment for subsequent inquiry into causes and circmnstaiices... 

The importance of good laboratory records is hard to overestimate. Everything must be recorded in a permanent manner and preserved so that it can be retrieved months or years later when the information may be badly needed. 

The fragility of the five data types will depend on the specific circumstances of the incident. It is not possible to offer a prescribed priority. In general, historical paper data such as procedures, maintenance records, and drawings are less fragile than people and physical data. The team should identify time-sensitive data as one of its first tasks, prioritize the data, and implement measures to collect or preserve the data. 

Surviving females are typically killed 1 day before delivery, i.e., on day 18 post-coitum by carbon dioxide inhalation and exsan-guination. The animals are submitted to a full macroscopic examination and any abnormalities observed are recorded. Abnormal organs or tissues are sampled and preserved for possible further examination if considered appropriate. 

While field crews collect the samples, the chemist verifies their types and quantities by comparing the COC Forms, Sample Tracking Logs, and other field records to the SAP specifications. The chemist interacts with the field crews for the resolution of errors in the sampling point selection, sample containers and preservation or COC Form errors. The chemist also serves as a point of contact with the laboratory, if any technical issues arise during sample analysis. 

The production of substances that preserve the food from contamination or from oxidation is another important field of membrane bioreactor. For example, the production of high amounts of propionic acid, commonly used as antifungal substance, was carried out by a continuous stirred-tank reactor associated with ultrafiltration cell recycle and a nanofiltration membrane [51] or the production of gluconic acid by the use of glucose oxidase in a bioreactor using P E S membranes [52]. Lactic acid is widely used as an acidulant, flavor additive, and preservative in the food, pharmaceutical, leather, and textile industries. As an intermediate product in mammalian metabolism, L( +) lactic acid is more important in the food industry than the D(—) isomer. The performance of an improved fermentation system, that is, a membrane cell-recycle bioreactors MCRB was studied [53, 54], the maximum productivity of 31.5 g/Lh was recorded, 10 times greater than the counterpart of the batch-fed fermentation [54]. 

Plan for evidence identification, collection, and preservation. On evidence preservation, be aware that some neighboring units may want to clear explosion debris from vital roadways and their unit. Some process instrument electronic records are not retained beyond 6 hours or 24 hours, etc., and they must be secured. 

---