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ASTM D1991-15
- Standard Test Method for Rubber Chemicals—2-Mercaptobenzothiazole (MBT)—Assay
- standard by ASTM International, 06/01/2015
- Publisher: ASTM
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1.1 This test method covers a procedure for the assay of 2-mercaptobenzothiazole (MBT). It is based on a potentiometric titration of MBT with sodium hydroxide.