ID04150085_Questions_and_Answers_to_Contractor_posted_9_24_15.doc

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Acceptance Testing of Filters
Solicitation number
ID04150085
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Thursday 09/24/15 see Q A document for details to questions GSA received. Thanks

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Question and Answer Format

ID04140085

Question

SOW/Reference Number
Questions
Answers from Government
1.
2.2
As explained in our response to your market research questionnaire, TRC holds the contract for Teflon filters for the base year and that the acceptance testing had been completed, but the filters had not been distributed. How do you want us to respond to the RFP with respect to base year pricing for Teflon filters?
2.
2.1.1
Please confirm that ASTM D645-97 is an acceptable equivalent to TAPPI T551.
The SOW has been revised to reflect that ASTM D645-97 is the primary method and TAPPI T511 –alternate method. .
3
2.2.2
This RFP identifies 33 metals. Please confirm that the listing in the RFP is what EPA desires.
The listing of metals provided in the statement of work is the official list.
4
2.2
ASTM D2986-95a supersedes ASTM D2986-95 and ASTM D2986-71. Section 2.1 allows D2986-95a for the quartz filters Please confirm that the use of the current version of the method, ASTM D2986-95a is acceptable for the Teflon filters.
ASTM D2986-95a is acceptable for Teflon filters.
5
2.1.1
Please confirm that retention testing of glass fiber filters is not required under this contract.
The exclusion of the retention test for glass fiber filters was inadvertently left out, therefore the test will be added to table in the SOW.
6
2.1.2
In the past, EPA required the following modifications to ASTM D828-97 for tensile strength of quartz filters: 1) Tensile specimens 20 mm wide and cut from the filters so that the length of the strips is along the 8-inch dimension (the machine direction of the sheet material from which the filters are cut). 2) The gauge length (distance between the jaws of the clamps) to be 50 mm. 3) The crosshead or pull rate to be the standard rate of 0.5 in/min. Please confirm that these method modifications are no longer required.
The method modifications are still required. ASTM D828-97 will be the primary method, with TAPPI T494 provided as the alternative method.
7
2.1.1
Please confirm that T494 is the correct method for tensile testing of glass fiber filters.
Added to the SOW ASTM D828-97 will be listed as the primary; TAPPI T494 will be listed as the alternate.
8.
2.1.1
If T494 is the correct method for tensile testing of glass fiber filters, does EPA want the modifications to Method D828-97 described in question 6, applied to Method T494?
Yes, the modifications to Method D828-97 described in question 6, applied to Method T494 will apply.

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