Search
×
FR

Placeholder headline

This is just a placeholder headline

MSS SP-44-2026: Steel Pipeline Flanges

$

450

BUY NOW

Placeholder headline

This is just a placeholder headline

API RP 576: Inspection of Pressure-relieving Devices

$

460

BUY NOW

Placeholder headline

This is just a placeholder headline

API RP 591: Process Valve Qualification Procedure

$

226

BUY NOW

Placeholder headline

This is just a placeholder headline

API RP 576: Inspection of Pressure-relieving Devices: Addendum 1

$

0

BUY NOW

Placeholder headline

This is just a placeholder headline

API Technical Report TDB-6 Chapter 6 – Density

$

204

BUY NOW

Placeholder headline

This is just a placeholder headline

API STD 560: Fired Heaters for General Refinery Services

$

721

BUY NOW

Placeholder headline

This is just a placeholder headline

API STD 64: Diverter Equipment Systems

$

324

BUY NOW

Placeholder headline

This is just a placeholder headline

API MPMS CH 17.10.1: Refrigerated Light Hydrocarbon Fluids – Measurement of Cargoes on Board LNG Carries

$

417

BUY NOW

ISO 9613:1993

ISO 9613:1993 Acoustics – Attenuation of sound during propagation outdoors – Part 1: Calculation of the absorption of sound by the atmosphere

CDN $233.00

Description

Specifies an analytical method of calculating the attenuation of sound as a result of atmospheric absorption for a variety of meteorological conditions. For pure-tone sounds, attenuation due to atmospheric absorption is specified in terms of an attenuation coefficient as a function of the frequency of the sound (50 Hz to 10 kHz), the temperature (- 20 °C to + 50 °C), the relative humidity (10 % to 100 %) and pressure (101,325 kPa) of the air. Formulae are also given for wider ranges (e.g. ultrasonic frequencies, lower pressure) and for other than pure tones.

Edition

1

Published Date

1993-06-03

Status

PUBLISHED

Pages

26

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

Specifies an analytical method of calculating the attenuation of sound as a result of atmospheric absorption for a variety of meteorological conditions. For pure-tone sounds, attenuation due to atmospheric absorption is specified in terms of an attenuation coefficient as a function of the frequency of the sound (50 Hz to 10 kHz), the temperature (- 20 °C to + 50 °C), the relative humidity (10 % to 100 %) and pressure (101,325 kPa) of the air. Formulae are also given for wider ranges (e.g. ultrasonic frequencies, lower pressure) and for other than pure tones.

Previous Editions

Can’t find what you are looking for?

Please contact us at: