ASTM C335 / C335M管道隔热稳态热传导性能的试验方法标准
日期:2012-02-13 17:35
ever, additional precautions must be taken and specified special procedures must be followed.
1.2 The test apparatus for this purpose is a guarded-end or calibrated-end pipe apparatus. The guarded-end apparatus is a primary (or absolute) method. The guarded-end method is comparable, but not identical to ISO 8497.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each sy
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