Document Description File Type Size iosp-20240403.xsd XBRL Taxonomy Extension Schema EX-101.SCH 3 KB iosp-20240403_lab.xml XBRL Taxonomy Extension Label Linkbase EX-101.LAB 18 KB iosp-20240403_pre.xml XBRL Taxonomy Extension Presentation Linkbase EX-101.PRE 11 KB d806299d8k_htm.xml XML 4 KB