Sample Handling. Care should be taken during sample preparation and dilution that cross contamination of glassware used for the samples and for the gametes does not occur. The exposure vials should be covered at all times to prevent contamination. Samples having a salinity of less than 30 ‰ should be adjusted using hypersaline brine. To make the brine, first place a glass container (usually a 1 L beaker or 1 Gal jar) of seawater in a freezer for at least 18 hr. Remove the container from the freezer and allow the ice to thaw at room temperature. During the thawing process, occasionally pour off the thawed brine to a clean beaker. Check the salinity of the brine by taking a 6 ml sample and dilute it with 6 ml DIW. Multiply the salinity by 2 (Note: the conductivity to salinity algorithm is not accurate above 40 ‰, which necessitates making the dilution just described). When the salinity of the brine is close to the desired level, or the volume needed is achieved, final dilution of the brine to the desired level should be made using seawater. The salinity of the brine used for sample adjustment should never exceed 80 ppt, as higher levels have been known to cause toxicity. When testing samples that have no saline content (stormwater, sewage effluent, etc) it is usually desirable to make the brine at 64 ‰ so that a 50:50 mixture of sample and brine has a final salinity of 32 ‰. We have found that brine may be stored in the refrigerator for up to a week. Water quality measurements are made at the beginning and end of the testing time. Separate sub-samples for water quality analysis of each test sample or dilution should be taken at the time the samples are prepared. Samples should be measured for pH, DO and salinity. Ammonia analysis should be considered optional.
Sample Handling. Upon receipt of the sample and chain of custody form, Contractor is responsible for sample handling, analysis, storage, and disposal.
Sample Handling. 4.1.1. Standard positioning stage: Motorized, closed loop with linear encoders
Sample Handling. As long as there is no other agreement between VDE GSCS and the customer all received test samples will be destroyed 4 weeks after the service is finished. This clause does not apply to any factory reference or Golden sample. All shipping costs or possible customs duties during sample delivery have to be borne by the sender of the test samples.
Sample Handling. All samples submitted to the laboratory for analyses must have proper documentation as to its source, method of collection, and maintenance of integrity during transport and delivery. Field personnel maintain custody of the samples until they are either relinquished directly to a laboratory or to a common carrier (e.g., Federal Express) for shipment to a laboratory. The samples are received in the laboratory by the sample custodian or assigned alternate. After checking the COC form for completeness, the sample custodian records the date, time, and signs the form. The sample custodian also verifies that all custody seals are intact and immediately notifies the consultant when it appears that the custody of the samples may have been compromised. The sample custodian also verifies the temperature of the samples and notifies the consultant when the temperature is not within prescribed limits (for samples that are directly delivered to the laboratory, the chilling process must be initiated, but it is recognized that the samples may not have reached the prescribed limits). Each analytical laboratory used for this program maintains an internal quality control system for handling samples before, during, and after analyses.
Sample Handling. Prior to ICFA Lab's acceptance of any sample (or after any revocation of acceptance), the entire risk of loss of or damage to such sample remains with Client. Samples are accepted when receipt is acknowledged on chain of custody documentation. In no event will ICFA Lab have any responsibility or liability for the action or inaction of any carrier shipping or delivering any sample to or from ICFA Lab's premises. All shipment arrangements or overnight shipping requirements will be at Client's expense. Normal samples will be held for six weeks after completion of analysis, after which they will be destroyed unless sample return or other handling has been requested in writing. Disposal of hazardous waste samples is the responsibility of the Client. If the Client does not wish such samples returned, ICFA Lab may add storage and disposal fees to the final invoice. Maximum storage time for hazardous samples is thirty (30) days after completion of analysis, unless modified by applicable state or federal laws. Client will be required to give to ICFA Lab written instructions concerning disposal of these samples. ICFA Lab reserves the absolute right, exercisable at any time, to refuse to receive delivery of, refuse to accept, or revoke acceptance of any sample which, in the sole judgment of ICFA Lab: (a) is of unsuitable volume, or (b) may be or become unsuitable for or may pose a risk in handling, transport or processing for any health, safety, environmental or other reason, whether or not due to the presence in the sample of any hazardous substance, and whether or not such presence has been disclosed to ICFA Lab by Client.
Sample Handling
