GB/T 14574-2000 (English Version) PDF

Standard No.: GB/T 14574-2000
Language: Chinese, Available in English version
Release Date: 2000
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 14574-2000

Scope: This standard stipulates the following contents related to machines and equipment: - the labeling of noise emission values; - the noise emission values of products and the acoustic information related to products shall be provided in technical documents; - the verification method of noise emission values shall be described . The marked value of noise emission used in this standard can be divided into single-valued noise emission marked value Ld or double-valued noise emission marked value L and KoL is the noise emission value of direct measurement, K is the uncertainty related to the measurement, Ld is L and The sum of K, the upper limit value that cannot be exceeded within the confidence range obtained by repeated measurements, and Ld corresponds to the Lc label value defined in GB/T 14573.1. The noise emission value has single-value or double-value representation, which can be a single A-weighted sound power level value LWA or A-weighted emission sound pressure level LpA or C-weighted peak emission sound pressure level LpC at a specified position, peak three One of them said. It is also possible to use the above three quantities to express simultaneously. Once selected, the K value in the relevant test procedures is determined. Appendix A gives the method for determining the marked value of noise emission.

GB/T 14574-2000 history

2000 GB/T 14574-2000 Acoustics-Declaration and verification of noise emission values of machinery and equipment