现行

GB/T 31160-2014

地磁暴强度等级
Geomagnetic storm intensity level

2014-09-03

现行

GB/T 31160-2014e

地磁暴强度等级
Geomagnetic storm intensity level

2014-09-03

现行

QX/T 562-2020

周地磁活动整体水平分级
Classification of weeklv geomagnetic activity based on planetary K index

2020-07-31

现行

BS ISO 16698-2019

Space environment (natural and artificial). Methods for estimation of future geomagnetic activity
空间环境（自然和人工） 未来地磁活动的估算方法

2019-12-13

现行

GB/T 41214-2021

空间环境(自然和人工)　地磁活动的预报方法
Space environment (natural and artificial)—Methods for estimation of future geomagnetic activity

2021-12-31

现行

ISO 16698-2019

Space environment (natural and artificial) — Methods for estimation of future geomagnetic activity
空间环境（自然和人造） 估计未来地磁活动的方法

2019-12-05

现行

BS 12/30235930 DC

BS ISO 16698. Space environment (natural and artificial). Methods for estimation of future geomagnetic activity
BS ISO 16698 空间环境（自然和人工） 未来地磁活动的估算方法

2012-04-17

现行

QX/T 135-2011

太阳活动水平分级
Classification for solar activity level

2011-06-07

现行

ITU-T P.56

Objective measurement of active speech level
主动言语水平的客观测量

1993-03-12

现行

ITU-T P.56

Objective measurement of active speech level
主动言语水平的客观测量

1993-03-12

现行

ITU-T G.115

Mean active speech level for announcement and speech synthesis systems
公告和语音合成系统的平均活动语音电平

1996-02-06

现行

PO-86-14-4

The Effect of Air Velocity on Thermal Comfort at Moderate Activity Levels
中等活动水平下空气流速对热舒适性的影响

现行

PO-86-14-4

The Effect of Air Velocity on Thermal Comfort at Moderate Activity Levels
中等活动水平下空气流速对热舒适性的影响

现行

ITU-T G.115

Mean active speech level for announcement and speech synthesis systems
公告和语音合成系统的平均活动语音电平

1996-02-06

现行

RP-421

Thermal Comfort of the Elderly: Effect of Indoor Microclimate, Clothing, Activity Level and Socioeconomics
老年人热舒适:室内小气候、衣着、活动水平和社会经济的影响

现行

RP-421

Thermal Comfort of the Elderly: Effect of Indoor Microclimate, Clothing, Activity Level and Socioeconomics
老年人热舒适:室内小气候、衣着、活动水平和社会经济的影响

现行

SE-2416

Man's Thermal Sensitivity During Temperature Changes at Two Levels of Clothing Insulation and Activity
人体在温度变化过程中的热敏感度分为两个层次:衣服的隔热性和活动性

现行

EJ/T 20188-2018

低放有机废液 总β活度浓度测定 β计数法
Determination of gross β activity with β counting in low level liquid organic waste

2018-01-18

现行

SE-2416

Man's Thermal Sensitivity During Temperature Changes at Two Levels of Clothing Insulation and Activity
人体在温度变化过程中的热敏感度分为两个层次:衣服的隔热性和活动性

现行

AWWA WQTC58989

Impact of Trihalomethane Concentrations in Tap Water and Water Use Activities on Biological Levels of Trihalomethanes
自来水中三卤甲烷浓度和用水活动对三卤甲烷生物水平的影响

2003-11-02