ISO 8301 AMD 1-2010 Thermal insulation - Determination of steady-state thermal resistance and related properties - Heat flow meter apparatus Amendment 1《绝热 恒定热阻.pdf

1、 Reference number ISO 8301:1991/Amd.1:2010(E) ISO 2010INTERNATIONAL STANDARD ISO 8301 First edition 1991-08-01 AMENDMENT 1 2010-08-15 Thermal insulation Determination of steady-state thermal resistance and related properties Heat flow meter apparatus AMENDMENT 1 Isolation thermique Dtermination de l

2、a rsistance thermique et des proprits connexes en rgime stationnaire Mthode fluxmtrique AMENDEMENT 1 ISO 8301:1991/Amd.1:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless

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7、.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedISO 8301:1991/Amd.1:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing

8、 International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liais

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10、chnical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is dr

11、awn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Amendment 1 to ISO 8301:1991 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in t

12、he built environment, Subcommittee SC 1, Test and measurement methods. ISO 8301:1991/Amd.1:2010(E) ISO 2010 All rights reserved 1Thermal insulation Determination of steady-state thermal resistance and related properties Heat flow meter apparatus AMENDMENT 1 Page 1, 1.2 Delete footnote 1. Page 5, 1.5

13、.3.3 Add the following note at the end of the subclause: NOTE Comparative tests under the European Key Mark scheme have shown that it is possible to achieve reproducibility of 1,5 % using careful calibration and careful operational procedures. Pages 5 and 6, 1.5.4.2 At the end of the last sentence,

14、replace “in accordance with 1.5.4.1.” with “in accordance with 1.5.4.1 and 2.5.4.” Page 6, 1.7.2.1 At the end of the second sentence, add “(e.g. the use of three-dimensional finite elements calculations for evaluation of edge effects).” Pages 9 and 10, 2.2.1.2 Retain the first three lines and delete

15、 the rest of the text in the subclause. Page 13, 2.2.3.1.1 Replace the following text in the last three sentences of the second paragraph: The number of such thermocouples on each side should be not less than 10 , or 2, whichever is greater, where is the metering area section in square metres. One t

16、hermocouple per surface has been found adequate on existing plates having surface areas of less than 0,04 m 2 , provided that either the thermocouples are changed frequently or the thermocouple calibration is checked regularly. A minimum of two thermocouples is required for all new apparatus. ISO 83

17、01:1991/Amd.1:2010(E) 2 ISO 2010 All rights reservedwith the following: The number of such thermocouples on each side shall not be not less than 10 , or 2, whichever is greater, where is the metering area section in square metres. One thermocouple per surface has been found adequate when testing hig

18、h resistance specimens using plate thermocouples only without contact sheets. Page 14, 2.2.3.1.3 Delete the last sentence of the last paragraph. Page 14, 2.2.3.2.2 Replace the first part of the first paragraph “When the apparatus is used for high-level performance in measurements or reporting testin

19、g, the measuring system shall have the following capabilities, regardless of whether a wide-range or a multirange measuring system is used: ” with: “The measuring system shall have the following capabilities, regardless of whether a wide-range or a multirange measuring system is used:” Page 14, 2.2.

20、3.2.2 Delete list item f). Page 15, 2.2.5.1 Add at the end of the first paragraph: “Finite element three-dimensional simulation shall be carried out to ensure one-dimensional heat flow in the metering area”. Page 15, 2.2.5.1 In the third paragraph, change “5 K” to “2 K” and add the following note: N

21、OTE For specimens with fine capillaries or pores, up to 5 K can be needed. Pages 15 and 16, 2.2.5.3 Delete the subclause. Page 16, 2.3.4 Add at the end of the subclause “Finite element three-dimensional simulation shall be carried out to ensure one-dimensional heat flow in the metering area.” Page 1

22、9, 2.5.3.1.4 Delete the subclause. ISO 8301:1991/Amd.1:2010(E) ISO 2010 All rights reserved 3Page 19, 2.5.3.1.5 Delete the subclause. Page 19, 2.5.3.1.7 Delete the subclause and renumber 2.5.3.1.6 as 2.5.3.1.4. Page 22, 3.2.2.2.1 In the last paragraph, replace “The number of uniformly distributed th

23、ermocouples used on each side of the specimen in the area contiguous to the metering area (see 2.2.3.1.1) should be not less than 10 , or 2, whichever is the greater, where is the area in square metres of one side of the metering area.” with “A minimum of one thermocouple is needed for each surface.

24、” Page 23, 3.2.2.3.1 In the second paragraph, replace “sample” with “specimen”. Page 30, Annex A In the 2.2.3.1.1 row, value column, replace “10 or 2” with “1”. Page 30, Annex A In the 2.2.5.1 row, value column, replace “5 K” with “2 K”. Page 30, Annex A Delete the 2.2.5.3 row. Page 30, Annex A Delete both 2.3.2 rows. Page 30, Annex A In the 3.2.2.3 row, value column, replace “10, better 20” with “10”. ISO 8301:1991/Amd.1:2010(E) ICS 27.220 Price based on 3 pages ISO 2010 All rights reserved