Need help? Chat now
Cart (0)

Search book title
Enter keywords for book title search
Search book content
Enter keywords for book content search
 Admin Code
 CADD File
 City Code
 Comprehensive Plan
 Conference Paper
 County Code
 Course & CEU
 DHS Documents
 Executive Regulation
 Federal Guideline
 Firm Content
 Land Use and Development
 Legislative Rule
 Local Amendment
 Local Code
 Local Document
 Local Regulation
 Local Standards
 Model Code
 Model Standard
 Rules & Regulations
 State Amendment
 State Code
 State Manual
 State Plan
 State Standards
 Study Guide
 Technical Bulletin
  • ASTM
    C1667-09 Standard Test Method for Using Heat Flow Meter Apparatus to Measure the Center-of-Panel Thermal Resistivity of Vacuum Panels
    Edition: 2009
    Unlimited Users - 1 Loc per year

Description of ASTM-C1667 2009

ASTM C1667 - 09

Standard Test Method for Using Heat Flow Meter Apparatus to Measure the Center-of-Panel Thermal Resistivity of Vacuum Panels

Active Standard ASTM C1667 | Developed by Subcommittee: C16.30

Book of Standards Volume: 04.06

ASTM C1667

Significance and Use

Heat flow meter apparatus are being used to measure the center-of-panel portion of a vacuum insulation panel, which typically has a very high value of thermal resistivity (that is, equal to or greater than 90 m-K/W). As described in Specification C 1484 , the center-of-panel thermal resistivity is used, along with the panel geometry and barrier material thermal conductivity, to determine the effective thermal resistance of the evacuated panel.

Using a heat flow meter apparatus to measure the thermal resistivity of non-homogenous and high thermal resistance specimens is a non-standard application of the equipment, and shall only be performed by qualified personnel with understanding of heat transfer and error propagation. Familiarity with the configuration of both the apparatus and the vacuum panel is necessary.

The center-of-panel thermal transmission properties of evacuated panels vary due to the composition of the materials of construction, mean temperature and temperature difference, and the prior history. The selection of representative values for the thermal transmission properties of an evacuated panel for a particular application must be based on a consideration of these factors and will not apply necessarily without modification to all service conditions.

1. Scope

1.1 This test method covers the measurement of steady-state thermal transmission through the center of a flat rectangular vacuum insulation panel using a heat flow meter apparatus.

1.2 Total heat transfer through the non-homogenous geometry of a vacuum insulation panel requires the determination of several factors, as discussed in Specification C 1484 . One of those factors is the center-of-panel thermal resistivity. The center-of-panel thermal resistivity is an approximation of the thermal resistivity of the core evacuated region.

1.3 This test method is based upon the technology of Test Method C 518 but includes modifications for vacuum panel applications as outlined in this test method.

1.4 This test method shall be used in conjunction with Practice C 1045 and Practice C 1058 .

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C168 Terminology Relating to Thermal Insulation

C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus

C740 Practice for Evacuated Reflective Insulation In Cryogenic Service

C1045 Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions

C1058 Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal Insulation

C1484 Specification for Vacuum Insulation Panels

E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method


effective thermal resistance (effective R-value); thermal conductivity; thermal resistance; vacuum insulation panel; Heat flow; Heat flow meter method; Thermal resistance/resistivity; Vacuum panels;

ICS Code

ICS Number Code 91.060.10 (Walls. Partitions. Facades)

DOI: 10.1520/C1667-09

ASTM International is a member of CrossRef.

ASTM C1667

The following editions for this book are also available...

This book also exists in the following packages...

Year Publisher Title Annual Price
[+] $4,555.00 Buy
[+] $6,128.00 Buy
[+] $840.00 Buy
[+] $8,976.00 Buy
[+] $8,976.00 Buy
[+] $1,138.00 Buy
[+] $1,138.00 Buy
[+] $7,443.00 Buy

Subscription Information ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at or +1 800.798.9296.


Some features of ASTM Standards Subscriptions are:

- Online access: With’ s web based subscription service no downloads or installations are required. Access ASTM Standards from any browser on your computer, tablet or smart phone.

- Immediate Access: As soon as the transaction is completed, your ASTM Standards Subscription will be ready for access.


For any further information on ASTM Standards Subscriptions, please contact us at or +1 800.798.9296.


About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.