{"id":165757,"date":"2024-10-19T10:03:44","date_gmt":"2024-10-19T10:03:44","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-g99-2017-2\/"},"modified":"2024-10-25T02:23:17","modified_gmt":"2024-10-25T02:23:17","slug":"astm-g99-2017-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-g99-2017-2\/","title":{"rendered":"ASTM-G99 2017"},"content":{"rendered":"

ASTM G99-17<\/h3>\n

Redline Standard: Standard Test Method for Wear Testing with a Pin-on-Disk Apparatus<\/h4>\n
\n

ASTM G99<\/h4>\n

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

\n

1.1<\/span> This test method covers a laboratory procedure for determining the wear of materials during sliding using a pin-on-disk apparatus. Materials are tested in pairs under nominally non-abrasive conditions. The principal areas of experimental attention in using this type of apparatus to measure wear are described. The coefficient of friction may also be determined.<\/p>\n<\/p><\/div>\n

\n

1.2<\/span> This test method standard uses a specific set of test parameters (load, sliding speed, materials, etc.) that were then used in an interlaboratory study (ILS), the results of which are given here (Tables 1 and<\/span> 2<\/span>). (This satisfies the ASTM form in that \u201cThe directions for performing the test should include all of the essential details as to apparatus, test specimen, procedure, and calculations needed to achieve satisfactory precision and bias.\u201d) Any user should report that they \u201cfollowed the requirements of ASTM G99<\/span>,\u201d where that is true.<\/p>\n<\/p><\/div>\n

\n

1.3<\/span> Now it is often found in practice that users may follow all instructions given here, but choose other test parameters, such as load, speed, materials, environment, etc., and thereby obtain different test results. Such a use of this standard is encouraged as a means to improve wear testing methodology. However, it must be clearly stated in any report that, while the directions and protocol in Test Method G99<\/span> were followed (if true), the choices of test parameters were different from Test Method G99<\/span> values, and the test results were therefore also different from the Test Method G99<\/span> results. This use should be described as having \u201cfollowed the procedure of ASTM G99<\/span>.\u201d All test parameters that were used in such case must be stated.<\/p>\n<\/p><\/div>\n

\n

1.4<\/span> The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.<\/p>\n<\/p><\/div>\n

\n

1.5<\/span> 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<\/p><\/div>\n

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

ceramic wear; friction; metal wear; non-abrasive; pin-on-disk; wear ;<\/p>\n

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

ICS Number Code 17.040.20 (Properties of surfaces)<\/p>\n

DOI:<\/strong> 10.1520\/G0099-17<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

G99-17 Standard Test Method for Wear Testing with a Pin-on-Disk Apparatus (Redline)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2017<\/td>\n7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":165764,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[255,2637],"product_tag":[],"class_list":{"0":"post-165757","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-040-20","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\/165757","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\/165764"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=165757"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=165757"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=165757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}