{"id":205795,"date":"2024-10-19T13:13:15","date_gmt":"2024-10-19T13:13:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d985-2007\/"},"modified":"2024-10-25T05:53:34","modified_gmt":"2024-10-25T05:53:34","slug":"astm-d985-2007","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d985-2007\/","title":{"rendered":"ASTM-D985 2007"},"content":{"rendered":"

ASTM D985-97-Reapproved2007<\/h3>\n

Withdrawn Standard: Standard Test Method for Brightness of Pulp, Paper, and Paperboard (Directional Reflectance at 457 nm) (Withdrawn 2010)<\/h4>\n
\n

ASTM D985<\/h4>\n

Scope<\/strong><\/p>\n

1.1 This test method determines the brightness of white, near-white, and naturally colored pulp, paper, and paperboard. Brightness is a commonly used industry term for the numerical value of the reflectance factor of a sample, with respect to blue light of specific spectral and geometric characteristics. This test method requires an instrument employing 45\u00b0<\/span> illumination and 0\u00b0<\/span> viewing geometry, with the illuminating and viewing beams adjusted so that translucent materials are evaluated on an arbitrary but specific scale (1-4)<\/span>.<\/p>\n

1.2 This test method is applicable to all naturally-colored pulps, and papers and board made from pulps. The measurement is not suitable for paper and paperboard containing added coloring matter (such as yellow or green dyestuff) which appreciably absorbs light in that part of the spectrum extending from about 400 to 500 nm. Colored papers must be measured spectrophotometrically or colorimetrically in order to obtain meaningful results (TAPPI T442, T524, and T527). This test method is, however, suitable for pulps or papers which contain optical (fluorescent) brightening agents.<\/p>\n

1.3 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

Keywords<\/strong><\/p>\n

brightness; directional reflectance; fluorescence; fluorescent component; opal glass standards; optical brighteners; photometric; spectra<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 85.060 (Paper and board)<\/p>\n

DOI:<\/strong> 10.1520\/D0985-97R07<\/p>\n<\/div>\n

PDF Catalog<\/h4>\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 Test Method
Significance and Use <\/td>\n<\/tr>\n
2<\/td>\nApparatus
Sampling and Test Specimens
Calibration
Conditioning
Procedure
Report <\/td>\n<\/tr>\n
3<\/td>\nPrecision and Bias
Keywords
A1. SPECTRAL, GEOMETRIC, AND PHOTOMETRIC CHARACTERISTICS OF INSTRUMENT
A1.1
A1.2
TABLE A1.1 <\/td>\n<\/tr>\n
4<\/td>\nA1.3
A2. CALIBRATION SERVICE
A2.1
A2.2
A2.3
A2.4
A2.5
TABLE A1.2 <\/td>\n<\/tr>\n
5<\/td>\nA3. FLUORESCENT COMPONENT OF BRIGHTNESS
A3.1
A3.2
A3.3
A3.4
A3.5
A3.6
A3.7
A3.8
A3.9
FIG. A3.1
FIG. A3.2
TABLE A3.1 <\/td>\n<\/tr>\n
6<\/td>\nREFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D985-97(2007) Standard Test Method for Brightness of Pulp, Paper, and Paperboard (Directional Reflectance at 457 nm) (Withdrawn 2010)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2007<\/td>\n6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":205801,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-205795","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-astm","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\/205795","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\/205801"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=205795"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=205795"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=205795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}