In a recent CCRL lab inspection the inspector commented that our effective gage length for ASTM C1293 was not in compliance. C1293 refers to C490 for apparatus but since C1293 is metric they go by metric limits in C490 which says the gage length should be 247.5-252.5 mm which we fail. For inch-lb units C490 says 9.9-10.1 in. and we meet that. We are using the same molds as C157 which is a dual-use unit. The inspector remarked that this issue is faced by many labs. If C1293 is changed to allow for dual-use units this issue will not arise.
Date Initiated: 05-12-2022
Technical Contact: Karthik Obla
Item: 001
Ballot: C09.50 (22-02)
Status: Negative Votes Need Resolution