{"id":315571,"date":"2024-10-19T21:45:11","date_gmt":"2024-10-19T21:45:11","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-181252017\/"},"modified":"2024-10-25T19:53:37","modified_gmt":"2024-10-25T19:53:37","slug":"bs-en-iso-181252017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-181252017\/","title":{"rendered":"BS EN ISO 18125:2017"},"content":{"rendered":"

This International Standard specifies a method for the determination of the absorbance at ultraviolet wavelengths of animal and vegetable fats and oils.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword
Endorsement notice <\/td>\n<\/tr>\n
7<\/td>\nForeword <\/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 Apparatus <\/td>\n<\/tr>\n
15<\/td>\n7 Preparation of test sample <\/td>\n<\/tr>\n
16<\/td>\n8 Calorimetric procedure
8.1 General <\/td>\n<\/tr>\n
18<\/td>\n8.2 Preparing the bomb for measurement
8.2.1 General procedure
8.2.2 Using combustion aid <\/td>\n<\/tr>\n
19<\/td>\n8.3 Assembling the calorimeter
8.4 Combustion reaction and temperature measurements <\/td>\n<\/tr>\n
20<\/td>\n8.5 Analysis of products of combustion
8.6 Corrected temperature rise \u03b8
8.6.1 Observed temperature rise
8.6.2 Isoperibol and static-jacket calorimeters <\/td>\n<\/tr>\n
22<\/td>\n8.6.3 Adiabatic calorimeters
8.6.4 Thermometer corrections
8.7 Reference temperature
9 Calibration
9.1 Principle <\/td>\n<\/tr>\n
23<\/td>\n9.2 Calibrant
9.2.1 Certification conditions
9.2.2 Calibration conditions
9.3 Valid working range of the effective heat capacity \u03b5 <\/td>\n<\/tr>\n
24<\/td>\n9.4 Ancillary contributions
9.5 Calibration procedure <\/td>\n<\/tr>\n
25<\/td>\n9.6 Calculation of effective heat capacity for the individual experiment
9.6.1 Constant mass-of-calorimeter-water basis
9.6.2 Constant total-calorimeter-mass basis <\/td>\n<\/tr>\n
26<\/td>\n9.7 Precision of the mean value of the effective heat capacity \u03b5
9.7.1 Constant value of \u03b5 <\/td>\n<\/tr>\n
27<\/td>\n9.7.2 \u03b5 as a function of the observed temperature rise
9.8 Redetermination of the effective heat capacity
10 Gross calorific value
10.1 General <\/td>\n<\/tr>\n
28<\/td>\n10.2 Combustion
10.3 Calculation of gross calorific value
10.3.1 General
10.3.2 Constant mass-of-calorimeter-water basis <\/td>\n<\/tr>\n
30<\/td>\n10.3.3 Constant total-calorimeter-mass basis <\/td>\n<\/tr>\n
31<\/td>\n10.3.4 \u03b5 as a function of the observed temperature rise
10.4 Expression of results
10.5 Calculation to other bases <\/td>\n<\/tr>\n
32<\/td>\n11 Performance characteristics
11.1 Repeatability limit
11.2 Reproducibility limit
12 Calculation of net calorific value at constant pressure
12.1 General
12.2 Calculations <\/td>\n<\/tr>\n
33<\/td>\n13 Test report <\/td>\n<\/tr>\n
34<\/td>\nAnnex\u00a0A
\n(normative)<\/p>\n

Adiabatic bomb calorimeters <\/td>\n<\/tr>\n

38<\/td>\nAnnex\u00a0B
\n(normative)<\/p>\n

Isoperibol and static-jacket bomb calorimeters <\/td>\n<\/tr>\n

44<\/td>\nAnnex\u00a0C
\n(normative)<\/p>\n

Automated bomb calorimeters <\/td>\n<\/tr>\n

47<\/td>\nAnnex\u00a0D
\n(informative)<\/p>\n

Checklists for the design and procedures of combustion experiments <\/td>\n<\/tr>\n

52<\/td>\nAnnex\u00a0E
\n(informative)<\/p>\n

Examples to illustrate the main calculations used in this document when an automated bomb calorimeter is used for determinations <\/td>\n<\/tr>\n

56<\/td>\nAnnex\u00a0F
\n(informative)<\/p>\n

List of symbols used in this document <\/td>\n<\/tr>\n

59<\/td>\nAnnex\u00a0G
\n(informative)<\/p>\n

Default values of most used solid biofuels for the calculations of calorific values <\/td>\n<\/tr>\n

60<\/td>\nAnnex\u00a0H
\n(informative)<\/p>\n

Flow chart for a routine calorific value determination <\/td>\n<\/tr>\n

61<\/td>\nBibliography <\/td>\n<\/tr>\n
62<\/td>\nIndex <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Solid biofuels. 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>\n2017<\/td>\n68<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":315574,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-315571","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\/315571","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\/315574"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=315571"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=315571"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=315571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}