Engine Water Sample Testing for MH-65E aircraftview on SAM.gov

The purpose of Amendment 03 is to answer the following questions: QUESTION : Please identify the specific USCG certification(s) required for technical acceptability. ANSWER : USCG does not specify certifications required for technical acceptability; however, specifying the accreditations and certifications that the laboratory possess in the proposal would be acceptable. QUESTION : Please provide the required analytical methods and acceptance limits for aspect, pH, conductivity, dissolved solids, and ash testing. ANSWER : ASTM or ISO methods for each parameter are acceptable. Inspection limits are in Appendix A of Attachment 2 – Statement of Work – 70Z03826QB0000147. QUESTION: Please confirm whether a small-business prime contractor may use a qualified subcontract laboratory to perform the testing. ANSWER: A qualified subcontracted laboratory would be considered by USCG provided all requirements in the statement of work can be met. QUESTION: Please specify the required sample volume, container type, preservation method, and maximum holding time for each analysis. ANSWER: Sample containers will be provided by the contractor, thus volume and container type will be dictated by the laboratory. Currently, USCG procedures call for filling the entire container then placing bottle into Zip-Loc bag, then placing that into the prepaid shipping container. There is no specified maximum holding time; however, samples are usually shipped from the USCG facility within 24 hours. _______________________________________________________________________________ The purpose of Amendment 02 is to add Appendix A to Attachment 2 - Statement of Work – 70Z03826QB0000147 and to answer the following questions: QUESTION : Should laboratories expect untreated aqueous engine-wash water, or could samples contain oil, fuel, coolant, bilge water, suspended material or multiple phases? ANSWER : The laboratory should expect water samples taken from a local source, i.e. county, city, etc. that has been passed through a filtered system. QUESTION : Are there required method detection limits or reporting limits for appearance, chloride, sulfate, sodium, hardness, conductivity at 25°C, pH and dry residue/total dissolved solids? ANSWER : Inspection limits are in Appendix A in Attachement 2 - Statement of Work - 70Z03826QB0000147. QUESTION: If no specific methods are prescribed, may the laboratory use appropriate validated ASTM, ISO or Standard Methods, provided its reporting limits are below the applicable acceptance thresholds? ANSWER: ASTM/ISO methods for each parameter is acceptable. QUESTION: Does the required seven-day reporting period mean seven calendar days from laboratory receipt? ANSWER: Yes. The reporting period is 7 calendar days from the date of receipt. QUESTION : Would preliminary results issued within seven calendar days, followed by a quality-reviewed final report, satisfy the turnaround requirement? Alternatively, is a standard 10-business-day turnaround acceptab…