共找到 150 條與 硬度損失率 相關(guān)的標(biāo)準(zhǔn)，共 10 頁(yè)
睡眠是人體精力與體力恢復(fù)的保證，床墊作為睡眠的平臺(tái)，其物理特性對(duì)睡眠質(zhì)量有著重要的影響。床墊的硬度是表征床墊物理性能的一個(gè)重要的方面，這主要是因?yàn)榇矇|的硬度不僅會(huì)影響人-床之間壓力的緩解，還會(huì)影響脊柱支撐。當(dāng)床墊過(guò)硬時(shí)，如果人
Ergonomic evaluation of mattress – Part 1: Test and evaluation method of mattress hardness classification and distribution
本標(biāo)準(zhǔn)規(guī)定了慢回彈軟質(zhì)聚氨酯泡沫塑料的分類、要求、試驗(yàn)方法、檢驗(yàn)規(guī)則和標(biāo)志、包裝、運(yùn)輸、貯存。本標(biāo)準(zhǔn)適用于自由發(fā)泡制得的塊狀、片狀和條狀或切割成型的慢回彈軟質(zhì)聚氨酯泡沫塑料,也適用于模塑制得的慢回彈軟質(zhì)聚氨酯泡沫塑料
Low resilience flexible polyurethane cellular plastics
本標(biāo)準(zhǔn)適用于 CNS 11445-1[旋轉(zhuǎn)電機(jī)之定額及性能總則]范圍內(nèi)所有大小尺度之直流機(jī)、交流同步機(jī)和感應(yīng)機(jī)。然而，這項(xiàng)原則也可以應(yīng)用到其它型式之旋轉(zhuǎn)機(jī)，諸如旋轉(zhuǎn)變流機(jī)交流換向器電動(dòng)機(jī)和單相感應(yīng)電動(dòng)機(jī)，在上述旋轉(zhuǎn)機(jī)、其它決定損失之方法也普遍的使用者。但不適用于牽引車
Method for determining lossess and efficiency of rotating electrical machinery from test (excluding machines for traction vehicles)
Method for determining lossess and efficiency of rotating electrical machinery from test (excluding machines for traction vehicles)
These requirements cover backflow special check valves of 3/4-inch (19.1-mm) through 10-inch (254-mm) nominal pipe size used in piping systems
UL Standard for Safety Strength of Body and Hydraulic Pressure Loss Testing of Backflow Special Check Valves Second Edition
1.1 These requirements cover backflow special check valves of 3/4 through 12 NPS (nominal pipe size) used in piping systems supplying water for fire
UL Standard for Safety Strength of Body and Hydraulic Pressure Loss Testing of Backflow Special Check Valves
Heat generation due to friction at the gear contact interface is a parasitic energy loss and may require designers to include active cooling systems
Mechanical Power Loss of Spur Gears Subject to Various Surface Finish Pairings
Determination of ignition loss of alumina
Loss Prevention VdS Loss Key
Identifying, Quantifying, and Proving Loss of Productivity
本標(biāo)準(zhǔn)規(guī)定了質(zhì)量損失率的確定原則、計(jì)算公式、內(nèi)部損失成本和外部損失成本的核算范圍。 本標(biāo)準(zhǔn)適用于部門(mén)、企業(yè)對(duì)質(zhì)量損失率的確定及核算，各部門(mén)、企業(yè)可參照本標(biāo)準(zhǔn)的規(guī)定，制定適合本部門(mén)、本企業(yè)的具體實(shí)施辦法
Determination and calculation method of mass loss rate
Guide to Strength Loss of Tubular Steel Poles
Niniejsza norma ustala metody wyznaczania sprawno?ci na podstawie pomiarów oraz metody pozwalaj?ce na wyznaczanie strat poszczególnych, je?eli to jest
Rotating electrical machines Methods for determining losses and. efficiency
Schválení ST SEV 3243-81 doporu?ilo federální ministerstvo hutnictví a tě?kého strojírenství. Zpracovatel: ?KD Praha, o. p., závod Elektrotechnika
Methods for determining losses and efficiency of rotating electrical machinery
本標(biāo)準(zhǔn)規(guī)定了慢回彈枕、墊類產(chǎn)品的術(shù)語(yǔ)和定義、基本要求、技術(shù)要求、試驗(yàn)方法、檢驗(yàn)規(guī)則、標(biāo)志、使用說(shuō)明、包裝和質(zhì)量承諾。 本標(biāo)準(zhǔn)適用于以慢回彈軟質(zhì)聚氨酯泡沫塑料為主要原料制作枕芯或墊芯，以針織面料制作外套的、不使用絮狀纖維的床上用枕、墊類產(chǎn)品。 本標(biāo)準(zhǔn)不適用于（0～36）個(gè)月的兒童用枕、墊類產(chǎn)品
Memory pillow and cushion
