High-Precision Thermal Constants Testing Equipment

Whats/App: +86 156 1874 6768

Web: standard-groups.com

Standards

The analyzer supports multiple internationally recognized test methods and standards, including:

(1) ISO 22007-2: Plastics — Determination of thermal conductivity and thermal diffusivity — Transient plane heat source method

(2) ISO 22007-7: Plastics — Determination of thermal conductivity and thermal diffusivity using transient plane heat source

(3) GB/T 32064: Transient plane heat source method for thermal conductivity and thermal diffusivity of building materials

(4) ASTM E3088: Standard test method for determination of thermal conductivity and thermal diffusivity using the transient plane source method

(5) ASTM D7896: Transient hot-wire method for thermal conductivity, thermal diffusivity, and volumetric heat capacity of liquids

(6) ASTM D5334: Transient line-source probe method

(7) ASTM D5930: Determination of thermal conductivity of plastics by transient line-source technique

(8) IEEE 442: Soil thermal resistivity measurement

Parameters

Method	TPS	THW	MTPS	THS	TLS
Applicable Materials	Solids, pastes, powders	Liquids, phase-change materials	Solids, pastes, powders	Solid rectangular samples	Soil, pastes, polymers
Measurement Mode	3D bulk, anisotropic, plate, thin film, 1D	Bulk	3D bulk, anisotropic, plate, 1D	Bulk, anisotropic	Bulk
Thermal Conductivity (W/m·K)	0.005–2000	0.01–2	0.03–500	0.01–2	—
Thermal Diffusivity (mm²/s)	0.01–1200	Up to 0.5	0.01–300	Up to 0.5	—
Volumetric Heat Capacity (MJ/m³·K)	Up to 5	Up to 5	Up to 5	Up to 5	—
Thermal Effusivity (W·s½/m²·K)	5–60000	Not applicable	20–40000	Not applicable	—
Contact Thermal Resistance (m²·K/W)	Measured	Not applicable	Measured	Not applicable	Not applicable
Sample Thickness (mm)*	≥0.01	—	≥0.1	—	—
Test Time (s)	0.25–2560	1	0.25–2560	0.25–2560	180
Accuracy (Thermal Conductivity)	3%	2%	5%	5%	5%
Repeatability (Thermal Conductivity)	1%	1%	2%	2%	2%
Temperature Range (°C)**	0 to 300 / up to 750 or 1000	10 to 200	0 to 100 / −50 to 200	−75 to 300	−40 to 100
Sample Configuration	Symmetric / asymmetric	Insert type	Asymmetric (single-sided)	Symmetric / asymmetric	Insert type

Features

Supports multiple transient methods within one integrated system

Measures absolute thermal conductivity, thermal diffusivity, specific heat, and thermal effusivity

Suitable for solids, liquids, pastes, powders, and soil samples

Wide thermal conductivity and temperature measurement ranges

Direct measurement of sensor–sample contact thermal resistance for improved accuracy

Accessories

(1) Transient plane heat source (TPS) sensors

(2) Transient hot-wire (THW) sensors

(3) Modified transient plane source (MTPS) sensors

(4) Transient hot strip (THS) sensors

(5) Transient line source (TLS) probes

(6) Sample holders for solid, liquid, and soil configurations

Test Procedures

Select the appropriate measurement method based on sample type and test requirements.

Prepare and position the sample according to the selected method and configuration.

Place the corresponding sensor in contact with or within the sample as required.

Set test parameters such as temperature range and measurement time.

Initiate the test; transient thermal signals are generated and recorded automatically.

The system calculates thermal conductivity, thermal diffusivity, specific heat, and related properties based on the acquired data.

Maintenance Information

Keep all sensors clean and free from surface contamination to ensure stable contact conditions.

Periodically inspect sensor surfaces for wear or damage, especially when testing rough samples.

Verify calibration and system performance at regular intervals using reference materials.

Store sensors and probes in protective containers when not in use to prevent mechanical damage.

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