{"id":311309,"date":"2024-10-19T21:23:39","date_gmt":"2024-10-19T21:23:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-12881-12014\/"},"modified":"2024-10-25T19:15:46","modified_gmt":"2024-10-25T19:15:46","slug":"bs-en-12881-12014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-12881-12014\/","title":{"rendered":"BS EN 12881-1:2014"},"content":{"rendered":"

EN 12881-1 describes four methods for measuring the propagation of a flame along a conveyor belt which has been exposed to a relatively high localized heat source such as a fire. The damage suffered by the conveyor belt, as well as its tendency to support combustion, is measured by observing the extent to which the fire spreads along the test piece.<\/p>\n

Method A uses a test piece 2 m in length and consumes propane gas through the burner at the rate of (1,30 \u00b1 0,05) kg per 10 min.<\/p>\n

Method B uses a test piece 2,5 m in length and consumes propane gas through two burners mounted above and below the test piece trestle at the rate of (1,30 \u00b1 0,05) kg per 10 min for each burner.<\/p>\n

Method C uses a test piece 1,5 m in length and consumes propane gas through the burner at the rate of (565 \u00b1 10) g per 50 min.<\/p>\n

Method D uses a test piece 1,2 m in length and consumes propane gas through the burner at the rate of 150 l\/hr (D1) or 190 l\/hr (D2).<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nContents Page <\/td>\n<\/tr>\n
5<\/td>\nForeword <\/td>\n<\/tr>\n
6<\/td>\nIntroduction <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Propane gas supply <\/td>\n<\/tr>\n
8<\/td>\n4 Method A \u2013 Two metre single burner test
4.1 Apparatus <\/td>\n<\/tr>\n
9<\/td>\nFigure 1 \u2014 Location of thermocouple for measuring the temperature of incoming air <\/td>\n<\/tr>\n
10<\/td>\nFigure 2 \u2014 Propane burner trestle showing positions of burner and test piece <\/td>\n<\/tr>\n
11<\/td>\nFigure 3 \u2014 Burner for Method A
4.2 Preparation of test pieces
4.3 Temperature at commencement of test
4.4 Number of tests
4.5 Procedure <\/td>\n<\/tr>\n
12<\/td>\n4.6 Termination of tests
4.6.1 Normal termination
4.6.2 Premature termination
4.7 Measurement of damage to test pieces
4.7.1 Criteria for assessment of damage <\/td>\n<\/tr>\n
13<\/td>\n4.7.2 Length of belting undamaged
Figure 4 \u2014 Measurement of length of undamaged belting
4.8 Test report <\/td>\n<\/tr>\n
14<\/td>\n5 Method B \u2013 Double burner test
5.1 Apparatus
Figure 5 \u2014 Positions of trestle, double burner and test piece for Method B <\/td>\n<\/tr>\n
15<\/td>\nFigure 6 \u2014 Burner for Method B
5.2 Preparation of test pieces
5.3 Temperature at commencement of test
5.4 Number of tests <\/td>\n<\/tr>\n
16<\/td>\n5.5 Procedure
5.6 Termination of tests
5.6.1 Normal termination
5.6.2 Premature termination
5.7 Measurement of damage to test pieces
5.7.1 Criteria for assessment of damage <\/td>\n<\/tr>\n
17<\/td>\n5.7.2 Length of belting undamaged
5.8 Test report
6 Method C \u2013 Mid-scale fire propagation test
6.1 Apparatus <\/td>\n<\/tr>\n
19<\/td>\nFigure 7 \u2014 Mid-scale fire tunnel (general) <\/td>\n<\/tr>\n
21<\/td>\nFigure 8 \u2014 Mid-scale fire tunnel (details) <\/td>\n<\/tr>\n
23<\/td>\nFigure 9 \u2014 Trestle <\/td>\n<\/tr>\n
24<\/td>\nFigure 10 \u2014 Burner assembly for Method C
Figure 11 \u2014 Jets for burner for Method C <\/td>\n<\/tr>\n
25<\/td>\n6.2 Preparation of test pieces
6.3 Installation of the test pieces and burner
6.4 Temperature at commencement of test
6.5 Number of tests
6.6 Procedure <\/td>\n<\/tr>\n
26<\/td>\n6.7 Termination of tests
6.7.1 Normal termination
6.7.2 Premature termination
6.8 Measurement of damage to test pieces
6.8.1 Criteria for assessment of damage
6.8.2 Length of belting undamaged
6.8.3 Temperature rise
6.8.4 Length of belting consumed <\/td>\n<\/tr>\n
27<\/td>\n6.9 Exhaust temperature calibration
Figure 12 \u2014 Plot of temperature against time when no test piece is present
6.10 Test report <\/td>\n<\/tr>\n
28<\/td>\n7 Method D Laboratory scale Fire Propagation Test
7.1 Apparatus <\/td>\n<\/tr>\n
29<\/td>\n7.2 Preparation of test pieces
7.3 Installation of the test piece and burner
7.4 Test Conditions
Table 1 \u2014 Test Conditions
7.5 Procedure <\/td>\n<\/tr>\n
30<\/td>\n7.6 Termination of tests
7.6.1 Normal termination
7.6.2 Premature termination
7.7 Measurement of damage to test pieces
7.7.1 Criteria for assessment of damage
7.7.2 Length of belting undamaged
7.8 Test report <\/td>\n<\/tr>\n
31<\/td>\nFigure 13 \u2014 Test Gallery <\/td>\n<\/tr>\n
32<\/td>\nFigure 14 \u2014 Exhaust Pipe
Figure 15 \u2014 Exhaust Hood <\/td>\n<\/tr>\n
33<\/td>\nFigure 16 \u2014 Trestle
Figure 17 \u2014 Test arrangement <\/td>\n<\/tr>\n
34<\/td>\nFigure 18 \u2014 Gas Burner <\/td>\n<\/tr>\n
35<\/td>\nAnnex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006\/42\/EC <\/td>\n<\/tr>\n
36<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Conveyor belts. Fire simulation flammability testing – Propane burner tests<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2014<\/td>\n38<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":311314,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[239,2641],"product_tag":[],"class_list":{"0":"post-311309","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-220-40","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/311309","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\/311314"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=311309"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=311309"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=311309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}