{"id":6130,"date":"2024-10-16T18:18:37","date_gmt":"2024-10-16T18:18:37","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d6342-2008\/"},"modified":"2024-10-24T10:39:36","modified_gmt":"2024-10-24T10:39:36","slug":"astm-d6342-2008","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d6342-2008\/","title":{"rendered":"ASTM-D6342 2008"},"content":{"rendered":"<\/p>\n

1.1 This standard covers a practice for the determination of hydroxyl numbers of polyols using NIR spectroscopy.<\/p>\n

1.2 Definitions, terms, and calibration techniques are described. Procedures for selecting samples, and collecting and treating data for developing NIR calibrations are outlined. Criteria for building, evaluating, and validating the NIR calibration model are also described. Finally, the procedure for sample handling, data gathering and evaluation are described.<\/p>\n

1.3 The implementation of this standard requires that the NIR spectrometer has been installed in compliance with the manufacturer’s specifications.<\/p>\n

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.<\/span><\/p>\n

Note<\/span> 1There is no equivalent or similar ISO standard.<\/span><\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology
Summary of Practice <\/td>\n<\/tr>\n
2<\/td>\nSignificance and Use
Instrumentation
FIG. 1 <\/td>\n<\/tr>\n
3<\/td>\nNear-IR Spectral Measurements <\/td>\n<\/tr>\n
4<\/td>\nProcedure to Develop a Feasibility Calibration
Selection of Calibration Samples <\/td>\n<\/tr>\n
5<\/td>\nCollecting NIR Spectra
Reference Method and Reference Values
Developing Calibration Model <\/td>\n<\/tr>\n
7<\/td>\nValidation of a Multivariate Model
Precision of Near-IR Estimated Values
Major Source of Calibration and Analysis Error <\/td>\n<\/tr>\n
8<\/td>\nCalibration Transfer
Calibration Quality Control
Keywords
REFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D6342-08 Standard Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2008<\/td>\n9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":6131,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1172,2637],"product_tag":[],"class_list":{"0":"post-6130","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-040-10","7":"product_cat-astm","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\/6130","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\/6131"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=6130"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=6130"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=6130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}