>> P.35
GaugeBlocksZEROCERABlocks(Ultra-lowThermalExpansion)•Eachblockismarkedwith”ZEROCERABLOCK”logo.•Availableinthenominalsizes(30to1,000mm)ofrectangulargaugeblocks.•ZEROCERABlocksarenext-generationgaugeblocksmadeofspeciallightweightceramicmaterialsthathaveextremelylowthermalexpansion.Theyareeasytohandle,andslowinaging(thermalexpansioncoefcient:0±0.02×10-6/K(20°C),specicgravity2.4kg/cm3).ManyresearchinstitutionsandacademicinstitutionsrelyonZEROCERABlocksinvariousapplications,includingthestudyofmethodsofcalibratingCMM.Thermalexpansioncoefficient-Temperaturecharacteristic152025Temperature(℃)3035405101.00.80.60.40.20-0.2-0.4-0.6-0.8-1.00Thermalexpansioncoefficient(ppm/K)Comparisonofmaximumerrorsat23°C(500mmsize)TemperaturecompensationerroroftypicalISO/JIS-certifiedproduct:±1.5µmTemperaturecompensationerrorofMitutoyostandardgaugeblocks:±0.75µmTemperaturecompensationerrorofgaugeblockswiththermalexpansioncoefficient:±0.075µmMaximumthermalexpansionofZEROCERABlocks:+0.03µmThermalexpansionofsteelgaugeblocks:+16.2µmThermalexpansionofCERABlocks:+13.95µmSPECIFICATIONSMetricBlocksJIS/ISO/DIN617673-016617675-016617681-016617682-016617683-016617684-016617685-016617840-016617841-016617843-016617844-016617845-016516-771-60CodeNo.BS617673-116617675-116617681-116617682-116617683-116617684-116617685-116617840-116617841-116617843-116617844-116617845-116516-771-61ASME617673-516617675-516617681-516617682-516617683-516617684-516617685-516617840-516617841-516617843-516617844-516617845-516516-771-66Length(mm)30501002003004005006007008009001000Aboveset01-8
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