NF P43-003-1983

建筑物水管阀门. 冲刷水箱阀门. 一般技术规范

Valves for building. Ball float valves for flushing tanks. General technical specifications.

NF P43-002-1981

建筑物水管阀门. 水表截止阀. 一般技术规范

Valves and taps for water supply in buildings. Stop valves for meter. General technical specifications.

实施日期：1981-12-01

NF C97-445-1980

电声学.高保真设备和系统. 6.3 mm 卷轴磁带.要求

Electro-acoustics. High fidelity equipments and systems 6,3 mm magnetic tapes on reels. Requirements.

实施日期：1980-10-01

NF P43-007-1985

建筑物水管阀门.A级控制非回动阀. 一般技术规范

Valves and taps for water supply in buildings. Controllable check valves class A. General technical specifications.

实施日期：1985-09-01

NF S32-001-1975

紧急撤离声信号

Acoustics-sound signal for emergency evacuation.

NF C97-440-1983

高保真器材和高保真系统 磁带录音机 规则

Magnetic taperecorder.

实施日期：1983-12-01

NF P43-008-1985

建筑物水管阀门.B级非控制非回动阀. 一般技术规范

Valves and taps for water supply in buildings. Non controllable check valves class B. General technical specifications.

实施日期：1985-09-01

ISO 9052-1-1989

声学 动力劲度的测定 第1部分:住宅用浮筑地板材料

Acoustics -- Determination of dynamic stiffness -- Part 1: Materials used under floating floors in dwellings

适用范围：Relates to the unit area of resilient materials with smooth surfaces. Does not apply to loadings lower than 0,4 kPa or greater than 4 kPa, that is not for materials in wall linings and not for machiner...

发布日期：1989-02-01  实施日期：1989-02-01

CB 20079-2012

声纳导流罩及罩内的声学性能通用设计要求

General design requirement of acoustic characteristics for sonar\u0027s dome and tank

适用范围：本标准规定了声纳导流罩及罩内的声学性能的设计目的、设计内容、设计原则、设计要求和方法。 本标准适用于声纳导流罩及罩内的主要声学性能的设计。

发布日期：2013-01-04  实施日期：2013-05-01

NF S31-065-1981

驻波管法测定标准入射角时的声阻抗和吸音率

Acoustics. Testing of architectural acoustics. Determination of sound absorption coefficient and impedance in a tube.

实施日期：1981-03-01

TB/T 3051-2002

机车风笛声学性能技术要求及测量

Technical specification and measurement of acoustical performance for locomotive whistle ...

实施日期：2002-12-01