GOST 31336-2006 PDF

Full title and description

GOST 31336-2006 — "Noise of machines. Engineering methods for measurement of noise of compressors and vacuum pumps". National adoption (modified) of ISO 2151:2004 specifying engineering (grade 2) methods for measuring and declaring noise emissions from portable and stationary compressors and vacuum pumps.

Abstract

This standard defines procedures for the measurement of sound power level and the emission sound pressure level at the work station for compressors and vacuum pumps. It prescribes test mounting and loading conditions, instrumentation and measurement practice (A‑weighting and octave or one‑third‑octave bands where applicable), and the format for declaring noise characteristics and two‑number noise ratings. The text is a national (modified) adoption of ISO 2151:2004 with Russia‑specific technical deviations noted in informative annexes.

General information

• Status: In force / active (national standard).
• Publication date: Registered 07 Dec 2006; introduced into force 01 Oct 2007 (date of national implementation/entry into force).
• Publisher: Interstate Council for Standardization, Metrology and Certification (EASC); published in Russia (Moscow) by Standartinform / national standards bodies.
• ICS / categories: 17.140.20 (Noise emitted by machines and equipment); related: 23.140 (Compressors and pneumatic machines).
• Edition / version: GOST 31336-2006 — national adoption/modification of ISO 2151:2004 (engineering method, Grade 2).
• Number of pages: 24 (standard text as published in national editions).

Scope

Applies to measurement, determination and declaration of noise emissions from portable and stationary compressors and vacuum pumps. The standard covers a wide range of machine types including gas compressors, oil‑lubricated and oil‑free air compressors, water‑injected and oil‑flooded compressors, compressors for hazardous gases (including oxygen and acetylene), high‑pressure compressors (over 4 MPa / 40 bar), compressors intended for low inlet temperatures (below 0 °C), large compressors (input power > 1 000 kW), portable and skid‑mounted compressors, and certain rotary and centrifugal blowers/exhausters for pressures up to 0.2 MPa. It sets required test conditions (mounting, loading and operating regimes) and the noise characteristics to be reported (sound power level and emission sound pressure level at the workplace).

Key topics and requirements

• Measurement of sound power level (Lw) for specified operating modes.
• Measurement or determination of emission sound pressure level at the designated workplace or operator position.
• Specification of test mounting, supports, and load/operating conditions for repeatable results.
• Use of engineering (Grade 2) measurement methods — octave/one‑third‑octave band analysis and A‑weighting where required.
• Requirements for instrumentation, calibration, measurement uncertainty and reference conditions (references to IEC/ISO acoustics standards such as IEC 61672 and ISO 9614 are included).
• Format and content for declared noise characteristics, including two‑number noise ratings and accompanying test condition information.

Typical use and users

Used by manufacturers of compressors and vacuum pumps for type testing and product data sheets; by independent acoustical test laboratories performing conformity and performance tests; by certification bodies and compliance engineers assessing declared noise emissions; by product designers and R&D teams for noise control and by occupational/environmental health specialists evaluating worker exposure and community noise impact.

Related standards

ISO 2151:2004 (base international standard adopted/modified), IEC/ISO standards referenced for instrumentation and procedures (for example IEC 61672‑1 for sound level meters, ISO 9614 series for sound intensity methods), and related national GOST/ISO documents covering machine noise measurement and reporting.

Keywords

compressor noise, vacuum pump noise, sound power level, emission sound pressure level, engineering method, noise test code, ISO 2151, A‑weighted level, octave bands, measurement uncertainty.

FAQ

Q: What is this standard?

A: GOST 31336-2006 is the Russian national standard that specifies engineering methods for measurement and declaration of noise from compressors and vacuum pumps; it is a modified adoption of ISO 2151:2004.

Q: What does it cover?

A: It covers procedures for measuring sound power and emission sound pressure at workplaces, required test mounting and loading conditions, instrumentation and reporting formats for a broad range of compressor and vacuum pump types.

Q: Who typically uses it?

A: Manufacturers, test laboratories, certification bodies, acoustic consultants, product designers, and occupational/environmental health professionals use the standard for testing, declaring and evaluating machine noise.

Q: Is it current or superseded?

A: As published it entered into force nationally on 01 October 2007 as GOST 31336-2006 and is listed as an active (in‑force) national standard; users should confirm the current legal/technical status and any amendments or newer replacements with the national standards authority before relying on it for compliance decisions.

Q: Is it part of a series?

A: It belongs to the machine‑noise group of standards and is linked to international and national acoustics standards (ISO 2151:2004 is the international base); related GOSTs and ISO/IEC documents address test methods, sound level meters, and other machine noise measurement techniques.

Q: What are the key keywords?

A: Compressor, vacuum pump, machine noise, sound power level, emission sound pressure, engineering method, ISO 2151, A‑weighted level.