下降气流流速检测

T/JSGT 002-2020 烟气超声流速流量仪

（1）流速平均值最大允许误差：≤±5%。 （2）24h零点漂移≤±1%F.S.；一周零点漂移≤±2%F.S.。 （3）24h量程漂移≤±1%F.S.；一周量程漂移≤±2%F.S.。 （4）系统响应时间≤5s。 （5）零流量读数≤0.01m/s。 （6）流量计的电源端子与接地端子、输出端子和

Exhaust gas ultrasonic velocity and flow meters

KS B ISO 9123-2003(2018 明渠液体流量测量水位下降流量关系

Measurement of liquid flow in open channels－Stage-fall-discharge relationships

JIS C9306-1993 具有下降特性曲线的整流式直流弧焊机

Rectifier type DC arc welding machines with drooping characteristics

KS M ISO 7231-2014(2021 聚合材料 蜂窝 柔性 - 恒定压降下的气流值测定

Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop

KS M ISO 7231:2004 泡沫柔性聚合材料.恒定压降下的气流值估计法

이 규격은 연질 발포 고분자 재료의 공기 흐름도 측정 방법을 규정한다. 공기 흐름도는

Polymeric materials, cellular flexible-Method of assessment of air flow value at constant pressure-drop

NASA NACA-TN-1378-1947 小型后掠翼气流下洗特性的低速初步研究

Preliminary investigation at low speed of downwash characteristics of small-scale sweptback wings

KS I ISO 10780:2008 固定源排放.管路中气流流速及流量的测量

이 표준은 오염 공기를 대기 중으로 배기시키는 덕트와 굴뚝 내 가스 흐름의 유속 및 유량을

Stationary source emissions-Measurement of velocity and volume flowrate of gas streams in ducts

ISO 10780:1994 固定源排放 管路中气流流速及流量的测量

Specifies manual methods for determining the velocity and volume flowrate of gas streams in ducts, stacks and chimneys vented to the atmosphere

Stationary source emissions - Measurement of velocity and volume flowrate of gas streams in ducts

ISO 7231:1984 软质泡沫聚合材料 恒定压降下的空气流量评价法

The air flow value may be used to give an indication of the effects of formulation and production variables on the cellular structure. Describes

Polymeric materials, cellular flexible; Method of assessment of air flow value at constant pressure-drop

ISO 7231:2010 高聚物多孔弹性材料.恒定压降下的气流值的测定

Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop

BS EN ISO 7231:2010 高聚物多孔弹性材料.恒定压降下的气流值的测定

This International Standard specifies two methods for determining the air flow value of flexible cellular polymeric materials: ? method

Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop

T/JSGT 003-2020 烟气流速流量监测 超声波时差法

（1）量程：（0～40）m/s； （2）烟气流速平均值：＞10m/s时，相对误差为±8%； ≤10m/s时，相对误差为±10%； （3）分辨率：0.001m/s； （4）各声道之间的最大声速差：0.5m/s； （5）24h零点漂移≤±1%F.S.；一周零点漂移≤±2%F.S.； （6

Exhaust gas velocity and flow monitoring Ultrasonic time difference method

NASA NACA-TR-1234-1955 在亚音速流下,与有限振荡机翼升力和气流下洗分布相关积分方程的核函数

On the Kernel function of the integral equation relating the lift and downwash distributions of oscillating finite wings in subsonic flow

GB/T 11826.2-2012 流速流量仪器.第2部分：声学流速仪

GB/T 11826的本部分规定了超声波声脉冲传播时差法测速的声学流速仪的产品分类、要求、试验方法、检验规则及标志、使用说明书、包装、运输、贮存等。 本部分适用于明渠中进行流速测量的超声波声脉冲传播时差法的声学流速仪，不适用多普勒频移技术的声学流速仪

Current meter and flow meter.Part 2:Ultrasonic current meter

EN ISO 7231:2010 软质泡沫聚合材料.恒定压降下的空气流量评估方法

This International Standard specifies two methods for determining the air flow value of flexible cellular polymeric materials

Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010)

T/JSGT 002-2020 烟气超声流速流量仪

（1）流速平均值最大允许误差：≤±5%。 （2）24h零点漂移≤±1%F.S.；一周零点漂移≤±2%F.S.。 （3）24h量程漂移≤±1%F.S.；一周量程漂移≤±2%F.S.。 （4）系统响应时间≤5s。 （5）零流量读数≤0.01m/s。 （6）流量计的电源端子与接地端子、输出端子和

Exhaust gas ultrasonic velocity and flow meters

KS B ISO 9123-2003(2018 明渠液体流量测量水位下降流量关系

Measurement of liquid flow in open channels－Stage-fall-discharge relationships

JIS C9306-1993 具有下降特性曲线的整流式直流弧焊机

Rectifier type DC arc welding machines with drooping characteristics

KS M ISO 7231-2014(2021 聚合材料 蜂窝 柔性 - 恒定压降下的气流值测定

Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop

KS M ISO 7231:2004 泡沫柔性聚合材料.恒定压降下的气流值估计法

이 규격은 연질 발포 고분자 재료의 공기 흐름도 측정 방법을 규정한다. 공기 흐름도는

Polymeric materials, cellular flexible-Method of assessment of air flow value at constant pressure-drop

NASA NACA-TN-1378-1947 小型后掠翼气流下洗特性的低速初步研究

Preliminary investigation at low speed of downwash characteristics of small-scale sweptback wings

KS I ISO 10780:2008 固定源排放.管路中气流流速及流量的测量

이 표준은 오염 공기를 대기 중으로 배기시키는 덕트와 굴뚝 내 가스 흐름의 유속 및 유량을

Stationary source emissions-Measurement of velocity and volume flowrate of gas streams in ducts

ISO 10780:1994 固定源排放 管路中气流流速及流量的测量

Specifies manual methods for determining the velocity and volume flowrate of gas streams in ducts, stacks and chimneys vented to the atmosphere

Stationary source emissions - Measurement of velocity and volume flowrate of gas streams in ducts

ISO 7231:1984 软质泡沫聚合材料 恒定压降下的空气流量评价法

The air flow value may be used to give an indication of the effects of formulation and production variables on the cellular structure. Describes

Polymeric materials, cellular flexible; Method of assessment of air flow value at constant pressure-drop

ISO 7231:2010 高聚物多孔弹性材料.恒定压降下的气流值的测定

Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop

BS EN ISO 7231:2010 高聚物多孔弹性材料.恒定压降下的气流值的测定

This International Standard specifies two methods for determining the air flow value of flexible cellular polymeric materials: ? method

Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop

T/JSGT 003-2020 烟气流速流量监测 超声波时差法

（1）量程：（0～40）m/s； （2）烟气流速平均值：＞10m/s时，相对误差为±8%； ≤10m/s时，相对误差为±10%； （3）分辨率：0.001m/s； （4）各声道之间的最大声速差：0.5m/s； （5）24h零点漂移≤±1%F.S.；一周零点漂移≤±2%F.S.； （6

Exhaust gas velocity and flow monitoring Ultrasonic time difference method

NASA NACA-TR-1234-1955 在亚音速流下,与有限振荡机翼升力和气流下洗分布相关积分方程的核函数

On the Kernel function of the integral equation relating the lift and downwash distributions of oscillating finite wings in subsonic flow

GB/T 11826.2-2012 流速流量仪器.第2部分：声学流速仪

GB/T 11826的本部分规定了超声波声脉冲传播时差法测速的声学流速仪的产品分类、要求、试验方法、检验规则及标志、使用说明书、包装、运输、贮存等。 本部分适用于明渠中进行流速测量的超声波声脉冲传播时差法的声学流速仪，不适用多普勒频移技术的声学流速仪

Current meter and flow meter.Part 2:Ultrasonic current meter

EN ISO 7231:2010 软质泡沫聚合材料.恒定压降下的空气流量评估方法

This International Standard specifies two methods for determining the air flow value of flexible cellular polymeric materials

Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010)