{"id":119749,"date":"2024-10-19T04:11:07","date_gmt":"2024-10-19T04:11:07","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d4272-2009-2\/"},"modified":"2024-10-24T22:47:15","modified_gmt":"2024-10-24T22:47:15","slug":"astm-d4272-2009-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d4272-2009-2\/","title":{"rendered":"ASTM-D4272 2009"},"content":{"rendered":"

ASTM D4272-09<\/h3>\n

Historical Standard: Standard Test Method for Total Energy Impact of Plastic Films By Dart Drop<\/h4>\n
\n

ASTM D4272<\/h4>\n

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

1.1 This test method describes the determination of the total energy impact of plastic films by measuring the kinetic energy lost by a free-falling dart that passes through the film.<\/p>\n

1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.<\/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

Note<\/span> 1\u2014Film has been arbitrarily defined as sheeting having nominal thickness not greater than 0.25 \u03bc<\/span>m (0.010 in.).<\/span><\/p>\n

Note<\/span> 2\u2014This test method and ISO 7765\u2013<\/span>2 address the same subject matter, but differ in technical content (and results cannot be directly compared between the two test methods). The ISO test method calls for a direct readout of energy by using a load cell as part of the impactor head, while Test Method D 4272 calls for a constant weight impactor, then measuring the time of travel through a given distance to get energy values.<\/p>\n

FIG. 1 Elements of an Instrumented Dart Drop System<\/span><\/p>\n

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

dart drop; energy to break; film; free-falling dart; impact; instrumented impact; total energy; Dart impact method; Energy analysis; Free-falling dart method; Impact resistance–plastics; Impact testing–plastics; Kinetic energy; Plastic sheet and film; Polyethylene (PE) sheet and film; Polypropylene (PP); Styrenic plastics; Total energy impact test; Velocity<\/p>\n

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

ICS Number Code 83.140.10 (Films and sheets)<\/p>\n

DOI:<\/strong> 10.1520\/D4272-09<\/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>\nFIG. 1 <\/td>\n<\/tr>\n
3<\/td>\nApparatus
Test Specimens <\/td>\n<\/tr>\n
4<\/td>\nPreparation of Apparatus
Conditioning
Test Procedure
Calculation
Report <\/td>\n<\/tr>\n
5<\/td>\nPrecision and Bias
Keywords
X1. DERIVATION OF FORMULA
X1.1
X1.2
X1.3
X1.4
TABLE 1
TABLE 2 <\/td>\n<\/tr>\n
6<\/td>\nX2. IMPACT VALUES BY FOUR TEST METHODS <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D4272-09 Standard Test Method for Total Energy Impact of Plastic Films By Dart Drop<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2009<\/td>\n7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":119751,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1184,2637],"product_tag":[],"class_list":{"0":"post-119749","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-140-10","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\/119749","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\/119751"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=119749"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=119749"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=119749"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}