ANSI S1.4 Type 2

Introducing ANSI S1.4 Type 2 – Industrial Physics

ANSI S1.4 Type 2 is the American National Standard that defines the performance and accuracy requirements for Type 2 sound‑level meters. These instruments are used for general‑purpose noise measurement in workplaces, public spaces, industrial environments, and community‑noise assessments.

Type 2 meters provide dependable sound‑pressure‑level readings suitable for regulatory compliance, equipment evaluation, and environmental monitoring, making this standard essential for safety officers, inspectors, and acoustic‑measurement professionals.

What ANSI S1.4 Type 2 Covers

ANSI S1.4 Type 2 specifies the functional, accuracy, and calibration requirements for general‑purpose sound‑level meters. Key elements include:

• Defined tolerances for frequency response, time weighting, and level linearity
• Requirements for microphone sensitivity and stability
• Specifications for measurement ranges and dynamic behaviour
• Environmental operating conditions
• Guidance for calibration and verification procedures

The method applies to:

• Environmental noise surveys
• Occupational noise assessments
• Industrial‑equipment noise evaluation
• Community‑noise monitoring
• General‑purpose acoustic measurements

ANSI S1.4 Type 2 ensures consistent, reliable sound‑level measurement across instruments and applications.

Where ANSI S1.4 Type 2 Is Used

This standard is widely used across industries and regulatory environments:

• Occupational health and safety programs
• Environmental‑impact assessments
• Industrial‑equipment testing
• Construction and infrastructure projects
• Local‑authority noise monitoring
• R&D and acoustic‑engineering teams

It supports both routine noise surveys and compliance‑driven measurement programs.

Why Sound‑Level Testing Matters

Accurate sound‑level measurement is essential for:

• Ensuring worker safety and regulatory compliance
• Evaluating environmental and community noise
• Assessing equipment performance and noise emissions
• Supporting product development and acoustic design
• Meeting industry and customer specifications

Reliable noise data helps organizations manage risk, improve comfort, and maintain compliance.

Testing solutions for ANSI S1.4 Type 2

One product from the Industrial Physics portfolio aligns directly with ANSI S1.4 Type 2’s focus on sound‑level measurement:

TQC Sheen Sound Level Meter

A compact, easy‑to‑use instrument designed for accurate measurement of environmental and industrial noise. Built to meet Type 2 performance requirements, it provides reliable sound‑pressure‑level data for workplace assessments, equipment testing, and general‑purpose acoustic monitoring.

Your Global Test and Measurement Partner for ANSI S1.4 Type 2

Industrial Physics supports manufacturers, inspectors, and environmental‑monitoring teams with the tools and expertise needed to measure noise in line with ANSI S1.4 Type 2. From sound‑level meters to vibration, environmental, and materials‑testing solutions, we help ensure your measurements are accurate and compliant.