Standard Test Method for Shear Properties of Sandwich Core Materials| shear strength, shear modulus, sandwich construction, sandwich, honeycomb, core, and thickness measurements., width, 0.001 in.] is adequate for the length, 0.025 mm [±, an instrument with an accuracy of ±, % of the sample dimensions. For typical specimen geometries, as well as the specimen thickness when no facings are present. The use of alternative measurement devices is permitted if specified, (or agreed to) by the test requestor and reported by the testing laboratory. The accuracy of the instruments shall be suitable for, reading to within 1&#x2009, tooled surfaces). A micrometer or caliper with a flat anvil interface shall be used for measuring length and width, the bag-side of a thin facing laminate that is neither smooth nor flat). A micrometer or caliper with a flat anvil interface is, recommended for thickness measurements when facings are bonded to the core and both surfaces are smooth (for example, mm