{"id":63924,"date":"2024-10-17T12:21:25","date_gmt":"2024-10-17T12:21:25","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d4890-2003\/"},"modified":"2024-10-24T18:12:51","modified_gmt":"2024-10-24T18:12:51","slug":"astm-d4890-2003","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d4890-2003\/","title":{"rendered":"ASTM-D4890 2003"},"content":{"rendered":"

ASTM D4890-98-Reapproved2003<\/h3>\n

Historical Standard: Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols<\/h4>\n
\n

ASTM D4890<\/h4>\n

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

1.1 These test methods measure visually the color of clear polyester and polyether liquids. They apply only to materials whose colors have light-absorption characteristics similar to those of the standards. An alternative method is Test Method D 1209. (See Note 1.)<\/p>\n

1.2 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.<\/i><\/p>\n

Note 1 <\/p>\n

Although Test Method A of these test methods and ISO 4630-1997 differ in some details, data obtained using either are technically equivalent. Although Test Method B of these test methods and ISO 6271-1981 differ in some details, data obtained using either are technically equivalent.<\/p>\n

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

APHA; color; Gardner; platinum-cobalt scale; polyols; polyurethane raw materials; Pt-Coscale<\/p>\n

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

ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics)<\/p>\n

DOI:<\/strong> 10.1520\/D4890-98R03<\/p>\n<\/div>\n

PDF Catalog<\/h4>\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
Sampling <\/td>\n<\/tr>\n
2<\/td>\nPurity of Reagents
Apparatus
Reagents
Gardner Color Reference Standards <\/p>\n

TABLE 1 <\/td>\n<\/tr>\n

3<\/td>\nProcedure
Report
Precision and Bias
Apparatus
Reagents
Preparation of Color Standards
Procedure
Report
Precision and Bias
TABLE 2 <\/td>\n<\/tr>\n
4<\/td>\nKeywords <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D4890-98(2003) Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2003<\/td>\n4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":63925,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1174,2637],"product_tag":[],"class_list":{"0":"post-63924","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-040-30","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\/63924","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\/63925"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=63924"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=63924"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=63924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}