JB/T 9952-1999 Limits of sound power levels for woodworking planers

JB/T 9952-1999 This standard is a revision of ZB J65 014-89 "Noise Sound Power Level Limits for Woodworking Planers". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies the noise sound power level of woodworking planers when they are unloaded. This standard was first issued on March 30, 1989. JB/T 9952-1999 Noise Sound Power Level Limits for Woodworking Planers JB/T9952-1999 Standard Download Decompression Password: www.bzxz.net

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Machinery Industry Standard of the People's Republic of China
JB/9952-1999
Woodworking Planer
1999-05-14 Issued
Noise Sound Power Level Limits
2000-01-01 Implementation
State Machinery Industry Bureau
JB/T9952-1999
This standard is a revision of 2BJ65U14-Special Woodworking Planer, and the technical content has not changed. This standard will replace ZB5014-89 from January 2000. The revision of the limit of the average noise level of magnetic noise level 3 was proposed by the National Standardization Technical Committee of the State Council and the Ministry of Industry and Information Technology. The responsible drafting unit of this standard is Fuzhou Machine Tool Research Institute. This standard was first issued on March 30, 199. 2
Machinery Industry Standard of the People's Republic of China
This standard specifies the noise power level limit of the flat planer when it is unloaded. Cited Standards
J89952-1999
Replaces 7R165(H1189
The following standards contain provisions that constitute the provisions of this standard through their use in this standard. When the standard is not issued, the versions shown are valid. All standards may be revised. Parties using the standard should consider the possibility of using the latest versions of the following standards: GB3770J83
Determination of noise level of woodworking machine tools
GE/T124481990 Woodworking machine tool model comprehensive method 3. Rotation conditions
3.1 The radial reduction of the slices shall not exceed 1.1mm. 3.2 The front 1. The workbench should be adjusted to a cutting depth of 2mm; the guide plate should be placed at the specified width. 2.3.3 The safety device at the door should be correctly positioned. For the adjustable height safety device, it should be adjusted to the position where the test piece with a height of 8Gmm can pass through, but not the test piece with a height of 85m.
3.4 ​​For the flat bed with noise reduction device, the noise reduction device should be specially installed. 4. Measurement method
The measurement type adopts GB3.
5. The limit of noise power level
The flat bed of the first batch is classified according to 12449. The noise output power level of the flat bed of various models and specifications when unloaded shall not exceed the value specified in the following table.
The period of conduction
A weighted output power level La.
National Machinery Industry Exhibition 1999-05-14 approved MHSA2
20M00-01-01 implementation
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