{"id":314669,"date":"2024-10-19T21:40:30","date_gmt":"2024-10-19T21:40:30","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-7404-52009\/"},"modified":"2024-10-25T19:47:34","modified_gmt":"2024-10-25T19:47:34","slug":"bs-iso-7404-52009","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-7404-52009\/","title":{"rendered":"BS ISO 7404-5:2009"},"content":{"rendered":"

This part of ISO 7404 specifies the methods for determining the reflectance of vitrinite of coals microscopically on the polished surfaces, immersed in oil. The methods are applicable to coals from single seams or coal blends covering the whole range of low-, medium- and high-rank coal.<\/p>\n

Vitrinite reflectance measurements can be used to characterize the components within blends. Measures can be taken to correct for the vitrinite percentage within each of the components of the blend or to determine the proportion of components in a blend, particularly when the components have dissimilar vitrinite contents. This method necessitates the identification of vitrinite by the analyst.<\/p>\n

Reflectance measurements on vitrinite obtained by interpreting the results from an automated system, are outside the scope of this part of ISO 7404.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
9<\/td>\nScope
Normative references
Definitions
Principle <\/td>\n<\/tr>\n
10<\/td>\nReagents and materials <\/td>\n<\/tr>\n
11<\/td>\nApparatus <\/td>\n<\/tr>\n
15<\/td>\nPreparation of coal sample
Procedure
Setting up the apparatus
Starting procedure
Adjusting the microscope for random or maximum measurements
Illumination <\/td>\n<\/tr>\n
16<\/td>\nAlignment
Checking the reliability and calibration of the apparatus
Stability of the apparatus
Variation in reading on rotating a reflectance standard on t
Correction for parasitic reflections and photomultiplier dar
Linearity of the signal from the photomultiplier <\/td>\n<\/tr>\n
17<\/td>\nMeasurement of the reflectance of vitrinite
General
Measurement of the maximum reflectance of vitrinite in oil <\/td>\n<\/tr>\n
18<\/td>\nMeasurement of the random reflectance of vitrinite in oil
Reporting of results <\/td>\n<\/tr>\n
20<\/td>\nPrecision
Repeatability <\/td>\n<\/tr>\n
21<\/td>\nReproducibility
Test report <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Methods for the petrographic analysis of coals – Method of determining microscopically the reflectance of vitrinite<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2009<\/td>\n26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":314675,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-314669","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\/314669","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\/314675"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=314669"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=314669"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=314669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}