This Part of BS 4370 describes three methods of test which apply to rigid cellular products of polymeric origin.<\/p>\n
\nMethods 7A and 7B. Measurement of thermal conductivity<\/p>\n
Method 8. Measurement of water vapour transmission<\/p>\n
Method 9. Determination of tensile strength<\/p>\n<\/blockquote>\n
\nNOTE The methods may not be suitable for cellular products of inorganic origin.<\/p>\n<\/blockquote>\n
Methods are given for determination of shear strength and shear modulus, thermal conductivity, water vapour transmission, tensile strength and volume percentage of closed cells. Methods 6 and 10 deleted.<\/p>\n
PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 1<\/td>\n BRITISH STANDARD <\/td>\n<\/tr>\n \n 2<\/td>\n Committees responsible for this British\ufffdStandard <\/td>\n<\/tr>\n \n 3<\/td>\n Contents <\/td>\n<\/tr>\n \n 5<\/td>\n 1 Scope
2 References
3 Method 6. Determination of shear strength and shear modulus
4 Methods 7A and 7B. Measurement of thermal conductivity and apparent thermal conductivity
4.1 General <\/td>\n<\/tr>\n\n 6<\/td>\n 4.2 Method 7A. Measurement of thermal conductivity (guarded hot plate method)
4.3 Method 7B. Measurement of apparent thermal conductivity (heat flow meter method) <\/td>\n<\/tr>\n\n 7<\/td>\n 5 Method 8. Measurement of water vapour transmission
5.1 General <\/td>\n<\/tr>\n\n 8<\/td>\n 5.2 Apparatus
5.3 Sample <\/td>\n<\/tr>\n\n 9<\/td>\n 5.4 Preparation of test specimens
5.5 Procedure
5.6 Expression of results <\/td>\n<\/tr>\n\n 10<\/td>\n Figure 2 Experimental arrangement for water vapour transmission specimens tested using beakers
5.7 Test report <\/td>\n<\/tr>\n\n 11<\/td>\n 6 Method 9. Determination of tensile strength
6.1 General
6.2 Apparatus
Figure 3 Holder for type 1 test specimen used in method 9 <\/td>\n<\/tr>\n\n 12<\/td>\n 6.3 Preparation of test specimens
6.4 Number of test specimens
6.5 Conditioning and test temperature
6.6 Procedure
6.7 Calculation
6.8 Test report <\/td>\n<\/tr>\n\n 13<\/td>\n Figure 4 Type 1 test specimen for method 9
Figure 5 Type 2 test specimen for method 9
7 Method 10. Determination of the volume percentage of closed cells <\/td>\n<\/tr>\n\n 14<\/td>\n Annex A
Deleted
Annex B(informative)
Water vapour transmission rate and related properties: conversion factors
Table B.1 Water vapour transmission <\/td>\n<\/tr>\n\n 15<\/td>\n Table B.2 Water vapour permeance
Table B.3 Water vapour permeability <\/td>\n<\/tr>\n\n 16<\/td>\n Annex C
Deleted
Annex D
Deleted <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"Methods of test for rigid cellular materials – Methods 7 to 9<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2001<\/td>\n 18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":307646,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-307642","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/307642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/307646"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=307642"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=307642"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=307642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}