1.1 These test methods cover the determination of shear strength of continuous fiber-reinforced ceramic composites (CFCCs) at ambient temperature. The test methods addressed are () the compression of a double-notched specimen to determine interlaminar shear strength and () the Iosipescu test method to determine the shear strength in any one of the material planes of laminated composites. Specimen fabrication methods, testing modes (load or displacement control), testing rates (load rate or displacement rate), data collection, and reporting procedures are addressed. 1.2 These test methods are intended primarily for use with all advanced ceramic or glass matrix composites with continuous fiber reinforcement having unidirectional (1-D) or bidirectional (2-D) fiber architecture. These test methods do not address composites with (3-D) fiber architecture or discontinuous fiber-reinforced, whisker-reinforced, or particulate-reinforced ceramics. 1.3 The values stated in SI units are to be regarded as the standard and are in accordance with Practice E380. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 8.1 and 8.2.