{"id":379500,"date":"2024-10-20T03:02:43","date_gmt":"2024-10-20T03:02:43","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-216542021\/"},"modified":"2024-10-26T05:27:59","modified_gmt":"2024-10-26T05:27:59","slug":"bs-en-iso-216542021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-216542021\/","title":{"rendered":"BS EN ISO 21654:2021"},"content":{"rendered":"

This document specifies a method for the determination of gross calorific value of solid recovered fuels at constant volume and at the reference temperature 25 \u00b0C in a combustion vessel calorimeter calibrated by combustion of certified benzoic acid.<\/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\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword
Endorsement notice <\/td>\n<\/tr>\n
7<\/td>\nForeword <\/td>\n<\/tr>\n
8<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
10<\/td>\n4 Principle
4.1 Gross calorific value <\/td>\n<\/tr>\n
11<\/td>\n4.2 Net calorific value
5 Reagents <\/td>\n<\/tr>\n
12<\/td>\n6 Laboratory conditions <\/td>\n<\/tr>\n
13<\/td>\n7 Apparatus
7.1 General <\/td>\n<\/tr>\n
15<\/td>\n7.2 Auxiliary equipment
7.3 Balances <\/td>\n<\/tr>\n
16<\/td>\n8 Preparation of test sample
9 Calorimetric procedure
9.1 General <\/td>\n<\/tr>\n
17<\/td>\n9.2 Preparing the combustion vessel for measurement
9.2.1 General procedure <\/td>\n<\/tr>\n
18<\/td>\n9.2.2 Using combustion aids <\/td>\n<\/tr>\n
19<\/td>\n9.3 Assembling the calorimeter
9.4 Combustion reaction and temperature measurements <\/td>\n<\/tr>\n
20<\/td>\n9.5 Analysis of products of combustion
9.6 Corrected temperature rise \ufffc
9.6.1 Observed temperature rise
9.6.2 Isoperibol and static\u2011jacket calorimeters <\/td>\n<\/tr>\n
22<\/td>\n9.6.3 Adiabatic calorimeters
9.6.4 Thermometer corrections
9.7 Reference temperature
10 Calibration
10.1 Principle <\/td>\n<\/tr>\n
23<\/td>\n10.2 Calibration reference
10.2.1 Certification conditions
10.2.2 Calibration conditions
10.3 Valid working range of the effective heat capacity \ufffc <\/td>\n<\/tr>\n
24<\/td>\n10.4 Ancillary contributions
10.5 Calibration procedure <\/td>\n<\/tr>\n
25<\/td>\n10.6 Calculation of effective heat capacity for the individual experiment
10.6.1 Constant mass\u2011of\u2011calorimeter\u2011water basis
10.6.2 Constant total\u2011calorimeter\u2011mass basis <\/td>\n<\/tr>\n
26<\/td>\n10.7 Precision of the mean value of the effective heat capacity \ufffc
10.7.1 Constant value of \ufffc <\/td>\n<\/tr>\n
27<\/td>\n10.7.2 \ufffc as a function of the observed temperature rise
10.8 Repetition of the determination of effective heat capacity
11 Gross calorific value
11.1 General <\/td>\n<\/tr>\n
28<\/td>\n11.2 Combustion
11.3 Calculation of gross calorific value
11.3.1 General
11.3.2 Constant mass\u2011of\u2011calorimeter\u2011water basis <\/td>\n<\/tr>\n
30<\/td>\n11.3.3 Constant total\u2011calorimeter\u2011mass basis <\/td>\n<\/tr>\n
31<\/td>\n11.3.4 \ufffc as a function of the observed temperature rise
11.4 Expression of results
11.5 Calculation to other bases <\/td>\n<\/tr>\n
32<\/td>\n12 Precision
12.1 Repeatability limit
12.2 Reproducibility limit
13 Calculation of net calorific value at constant pressure
13.1 General
13.2 Calculations <\/td>\n<\/tr>\n
33<\/td>\n14 Test report <\/td>\n<\/tr>\n
35<\/td>\nAnnex A (normative) Adiabatic combustion vessel calorimeters <\/td>\n<\/tr>\n
39<\/td>\nAnnex B (normative) Isoperibol and static-jacket combustion vessel calorimeters <\/td>\n<\/tr>\n
44<\/td>\nAnnex C (normative) Automated combustion vessel calorimeters <\/td>\n<\/tr>\n
47<\/td>\nAnnex D (normative) Removed ash contributors <\/td>\n<\/tr>\n
50<\/td>\nAnnex E (informative) Checklists for the design and procedures of combustion experiments <\/td>\n<\/tr>\n
55<\/td>\nAnnex F (informative) Examples to illustrate the main calculations used in this document if an automated (adiabatic) combustion vessel calorimeter is used for determinations <\/td>\n<\/tr>\n
58<\/td>\nAnnex G (informative) List of symbols used in this document <\/td>\n<\/tr>\n
61<\/td>\nAnnex H (informative) Flow chart for a routine calorific value determination <\/td>\n<\/tr>\n
62<\/td>\nAnnex I (informative) Interlaboratory test results <\/td>\n<\/tr>\n
65<\/td>\nAnnex J (informative) Additional terms for the basis of results expression <\/td>\n<\/tr>\n
66<\/td>\nAnnex K (informative) Environmental aspects <\/td>\n<\/tr>\n
68<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Solid recovered fuels. Determination of calorific value<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n70<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":379509,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1076,2641],"product_tag":[],"class_list":{"0":"post-379500","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-75-160-40","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\/379500","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\/379509"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=379500"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=379500"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=379500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}