NS 4821:1982 PDF

Name:
NS 4821:1982 PDF

Published Date:
10/01/1982

Status:
Active

Description:

Acoustics — Determination of sound power levels of noise sources — Precision methods for anechoic and semi-anechoic rooms ( ISO 3745:1977)

Document status:

Active

Format:

Electronic (PDF)

Delivery time:

10 minutes

Delivery time (for Russian version):

200 business days

SKU:

Number of Pages :	28
Published :	10/01/1982

Published Date: 10/01/1982

Acoustics — Determination of sound power levels of noise sources — Precision methods for anechoic and semi-anechoic rooms ( ISO 3745:1977)

Published Date: 12/01/1970

General requirements for the preparation of test codes for measuring the noise emitted by machines