NF S30-003-2004

声学.标准等响级线

Acoustics - Normal equal-loudness-level contours.

NF S30-011-2008

声学 声级的优先参考数

Acoustics - Preferred reference values for acoustical and vibratory levels.

中国标准分类号： A(综合) ； A59(声学计量)

NF S60-100/A1-2005

Classification of fires.

NF E65-115-2008

Acoustics - Noise test code for fastener driving tools - Engineering method.

NF E65-115-1999

Acoustics - Noise test code for fastener driving tools - Engineering method.

NF F80-101-1988

制造铁路车辆推荐使用的钢材 １. 一般规定

Rolling stock. Recommended steels for rolling stock construction. I : Common requirements.

中国标准分类号： H(冶金) ； H52,S05()

NF S31-139-2003

声学.声学校准仪

Electroacoustics - Sound calibrators.

NF C51-115/A1-2007

Rotating electrical machines - Part 5 : degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification.

NF S31-026-2009

噪音源声功率测定 第五部分: 吸音厅和半吸音厅实验室方法

Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and semi-anechoic rooms.

NF G46-002-7/A1-2009

Textile machinery - Noise test code - Part 7 : dyeing and finishing machinery - Amendment 1.

NF S31-172-3-2010

Acoustics - Noise from shooting ranges - Part 3 : guidelines for sound propagation calculations.

NF E48-394-1-2004

Hydraulic fluid power - Test code for the determination of sound power levels using sound intensity techniques : engineering method - Part 1 : pumps.

NF S31-004-6-2004

Building acoustics - Estimation of acoustic performance of buildings from the performance of elements - Part 6 : sound absorption in enclosed spaces.

NF S30-007-2-1996

Acoustics. Reference zero for the calibration of audiometric equipment. Part 2 : reference equivalent threshold sound pressure levels for pure tones and insert earphones.

NF A35-596-1987

碳素刀具钢

Iron and steel. Carbon steels for cutlery.

中国标准分类号： H(冶金) ； H59(其他特种合金) | 实施日期：1987-09-01

NF S31-062-4-2000

Acoustics - Hearing protectors - Part 4 : measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs.

NF F80-103-1989

铁路运输车辆.推荐使用的制造铁路车辆用钢.Ⅲ改良耐空气腐蚀结构钢 (含铜钢)

Rolling stock. Recommended steels for rolling stock construction. III : Structural steels with improved atmospheric corrosion resistance. Copper steels.

中国标准分类号： H(冶金) ； H52,S05() | 实施日期：1989-04-01

NF B42-001-2-2008

Advanced technical ceramics - Methods of test for ceramic powders - Part 2 : determination of impurities in barium titanate.

NF S31-172-2-2006

Acoustic - Noise from shooting ranges - Part 2 : estimation of muzzle blast and projectile sound by calculation.

NF A09-205-3-1996

Non-destructive testing. Image quality of radiographs. Part 3 : image quality classes for ferrous metals.