Ultrasonic Reference Standards

Block Type

Specifications

Calibration Function

IIW Type 1 Calibration Block

ASTM E164,
MIL-STD-2154

Straight Beam: distance, amplitude, resolution, horizontal linearity.
Angle Beam: sweep length, index point, sound path in wedge, sound path angle (35°-80°).

IIW Type 2 Calibration Block

USAF T.O. 33B-1-1 (6-1-84)

Straight Beam: sensitivity, distance, resolution.
Angle Beam: beam index, sound path angle, distance time base, distance sensitivity curve.

Miniature Angle Beam (ROMPUS) Calibration Block

T.O. 33B-1-1,
ASTM E164

Straight Beam: distance.
Angle Beam: index point, sound path angle (30°-70°).

DSC Distance/Sensitivity Calibration Block

ASTM E164,
AWS

Straight Beam: distance, amplitude.
Angle Beam: index point, sound path angle (45°-70°), distance, sensitivity.

DC Distance Calibration Block

ASTM E164,
AWS

Straight Beam: distance, amplitude.
Angle Beam: index point, distance.

SC Sensitivity Calibration Block

ASTM E164,
AWS

Angle Beam: sound path angle (45°, 60°, 75°), sensitivity.

DS Distance/Sensitivity Calibration Block

ANSI,
AWS D1.1-88

Straight Beam: distance, horizontal linearity, sensitivity.

RC (AWS) Resolution Calibration Block

ANSI,
AWS D1.1-88

Angle Beam: resolution (45°, 60°, 70°).

Miniature Resolution Calibration Block

None

Straight Beam: sensitivity, resolution, distance amplitude correction.

Thickness Gages

None

Straight Beam: thickness gaging.

30 FBH Resolution Block

ASTM E127,
ASTM E428

Straight Beam: sensitivity, resolution, flaw size, flaw depth.

IOW Beam Profile Block

BS2704: 1978

Angle Beam: beam profile (45°, 60°, 70°), probe angle.

Navships Calibration Block

MIL-STD-271F (SH)-6-27-86,
Navships 0900-06-3010 § 6

Angle Beam: sensitivity.

ASME N-625 Reference Block

ASME Boiler & Pressure Vessel Code, § III...Nuclear Vessels, 1965.

Straight Beam: sensitivity.
Angle Beam: sensitivity.
Surface Wave: sensitivity.

ASME Basic Calibration Blocks

Many available, including:
ASME § V, Art. 5, Fig. T-542.2.1, ASME § V, Art. 4, Fig. T-441.1,
ASME § V, Art. 5, Fig. T-541.4.1.2, ASME § V, Art. 5, Fig. T-542.8.1.1

ASTM Area Amplitude
(set of 8)

ASTM E127,
ASTM E428

Straight Beam: sensitivity, resolution, flaw size.

ASTM Distance/Area Amplitude
(set of 10)

ASTM E127,
ASTM E428

Straight Beam: sensitivity, resolution, flaw size, flaw depth.

ASTM Distance Amplitude
(set of 19)

ASTM E127,
ASTM E428

Straight Beam: sensitivity, resolution, flaw depth.