ASTM C 740 : 1997

Name: ASTM C 740 : 1997
Brand: ASTM
Price: 75.00 USD

Superseded

View Superseded by

Standard Practice for Evacuated Reflective Insulation In Cryogenic Service

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

11-10-1997

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 04.06, 2005 Covers use of installations with thermal radiation shields positioned perpendicular to the direction of heat flow called high-performance multilayer, or super installations. Used where warm boundary temperatures are below 450 K.

1.1 This practice describes the use of insulations that are characterized by the use of thermal radiation shields positioned perpendicular to the flow of heat. These are commonly referred to as high-performance insulations (HPI), multilayer insulations (MLI), or super insulations (SI) by the industry.

1.2 The practice covers the use of these insulation constructions where the warm boundary temperatures are below 350K.

1.3 Insulations of this construction are typically used when a thermal conductivity of less than 0.00087 W/m[dot]K (0.0005 Btu[dot]ft./h[dot]ft[dot]°F) is required.

1.4 Insulations of this construction are used in a vacuum environment.

1.5 This practice describes the performance considerations, typical applications, manufacturing methods, material specification, and safety considerations in the use of these insulations in cryogenic service.

1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.7 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. For specific safety hazards see Section 8.

Committee	C 16
DocumentType	Standard Practice
Pages	9
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM C 740 : 1997 : R2004 ASTM C 740/C740M : 2013 : REDLINE

ASTM C 1774 : 2013	Standard Guide for Thermal Performance Testing of Cryogenic Insulation Systems
MIL-HDBK-349 Base Document:1994	MANUFACTURE AND INSPECTION OF ADHESIVE BONDED, ALUMINUM HONEYCOMB SANDWICH ASSEMBLIES FOR AIRCRAFT
ASTM C 1667 : 2015 : REDLINE	Standard Test Method for Using Heat Flow Meter Apparatus to Measure the Center-of-Panel Thermal Transmission Properties of Vacuum Insulation Panels