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ASTM B819-2000(2011) Standard Specification for Seamless Copper Tube for Medical Gas Systems

Standard Number:  ASTM B819-2000(2011)
Title:  Standard Specification for Seamless Copper Tube for Medical Gas Systems
Language:  English
Replacing Standard:  ASTM B819-00(2006)

Publication Date:  2012/5/1
Status:  Current
Publisher:  American Society for Testing Material (ASTM)
Price:  
Number of Pages:  

Description:

Scope

1.1 This specification establishes the requirements for two wall thickness schedules of specially cleaned, straight lengths of seamless copper tube, identified as Types K and L, suitable for medical gas systems. The tube shall be installed in conformance with the requirements of the National Fire Protection Association (NFPA) Standard 99, Gas and Vacuum Systems (NFPA) Standard 99C, Standard for Hypobaric Facilities (NFPA) Standard 99B, and Canadian Standards Association (CSA) Standard Z 305.1/Z 7396.1, Nonflammable Medical Gas Piping Systems.

Note 1—Types K and L tube are defined in Specification B88.

Note 2—Drawn temper tube is suitable for use with capillary (solder joint) fittings for brazing.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.

1.3 The following safety hazard caveat pertains only to the test method portion of Section 12 of this specification. 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.

Significance and Use

For purpose of determining compliance with the specified limits for requirements of the properties listed in Table 9, an observed value or calculated value shall be rounded as indicated in accordance with the rounding of Practice E29.

TABLE 9 Rounding Units

PropertyRounded Unit for Observed for Calculated Value
Chemical compositionnearest unit in the last right-hand place
figures of the specified limit
Hardness valuesnearest unit in the last right-hand place
figures of the specified limit
Tensile strengthnearest ksi
Expansionnearest 1 %
Grain size:
Up to 0.055 mm, inclnearest multiple of 0.005 mm

Abstract

This specification establishes the requirements for two wall thickness schedules of specially cleaned, straight lengths of seamless copper tube, identified as Types K and L, suitable for medical gas systems. The product shall be manufactured by such hot working necessary to convert the billet to a tubular shape and cold worked to the finished size. Seamless copper tube for medical gas systems shall be furnished in the H58 (Drawn General Purpose) temper. Tension test and Rockwell hardness test shall be performed to determine the tube's tensile strength and hardness, respectively. Eddy-current test, a nondestructive test, shall be performed as well. The tubes used for medical gas systems shall be cleaned by any of the following recommended methods: alkaline washing, steam solvent washing, steam detergent washing, steam washing, vapor degreasing, and refrigerant degreasing.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

  
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Tile in English:  Standard Specification for Seamless Copper Tube for Medical Gas Systems

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