{"id":109423,"date":"2024-10-18T15:36:02","date_gmt":"2024-10-18T15:36:02","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-c1303-8\/"},"modified":"2024-10-24T21:52:25","modified_gmt":"2024-10-24T21:52:25","slug":"astm-c1303-8","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-c1303-8\/","title":{"rendered":"ASTM-C1303"},"content":{"rendered":"

ASTM C1303-09<\/h3>\n

Historical Standard: Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation<\/h4>\n
\n

ASTM C1303<\/h4>\n

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

1.1 This test method covers a procedure for predicting the long-term thermal resistance (LTTR) of unfaced or permeably faced rigid gas-filled closed-cell foam insulations by reducing the specimen thickness to accelerate aging under controlled laboratory conditions (1-5)<\/span> .<\/p>\n

1.2 Rigid gas-filled closed-cell foam insulation includes all cellular plastic insulations manufactured with the intent to retain a blowing agent other than air.<\/p>\n

1.3 This test method is limited to unfaced or permeably faced, homogeneous materials. This method is applied to a wide range of rigid closed-cell foam insulation types, including but not limited to: extruded polystyrene, polyurethane, polyisocyanurate, and phenolic. This test method does not apply to impermeably faced rigid closed-cell foams or to rigid closed-cell bun stock foams.<\/p>\n

Note<\/span> 1\u2014See Note 7 for more details regarding the applicability of this test method to rigid closed-cell bun stock foams.<\/p>\n

1.4 This test method utilizes referenced standard test procedures for measuring thermal resistance. Periodic measurements are performed on specimens to observe the effects of aging. Specimens of reduced thickness (that is, thin slices) are used to shorten the time required for these observations. The results of these measurements are used to predict the long-term thermal resistance of the material.<\/p>\n

1.5 The test method is given in two parts. The Prescriptive Method in Part A provides long-term thermal resistance values on a consistent basis that can be used for a variety of purposes, including product evaluation, specifications, or product comparisons. The Research Method in part B provides a general relationship between thermal conductivity, age, and product thickness.<\/p>\n

1.5.1 To use the Prescriptive Method, the date of manufacture must be known, which usually involves the cooperation of the manufacturer.<\/p>\n

1.6 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for information only.<\/p>\n

1.7 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

aging; long-term thermal resistance; LTTR; rigid closed-cell plastic foams; scaling factors; thermal insulation; thermal resistance; time-averaged thermal resistance; Controlled testing conditions\/environments; Foamed-in-place thermal insulation; Phenolic plastics; Polyisocyanurate insulation; Polystyrene (PS); Polyurethane insulation; Rigid closed cell plastic foams; Rigid thermal insulation; Scaling; Spray-applied thermal insulation; Thermal insulating materials; Thermal resistance\/resistivity; Time-averaged thermal resistance; Unfaced thermal insulation; Aging resistance; Long-term behavior\/performance<\/p>\n

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

ICS Number Code 83.100 (Cellular materials)<\/p>\n

DOI:<\/strong> 10.1520\/C1303-09<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope <\/td>\n<\/tr>\n
2<\/td>\nReferenced Documents
Terminology
Summary of Test Method <\/td>\n<\/tr>\n
3<\/td>\nSignificance and Use
Part A: The Prescriptive Method <\/td>\n<\/tr>\n
5<\/td>\nFIG. 1 <\/td>\n<\/tr>\n
6<\/td>\nFIG. 2
FIG. 3 <\/td>\n<\/tr>\n
7<\/td>\nPart B: The Research Method <\/td>\n<\/tr>\n
9<\/td>\nFIG. 4
TABLE 1 <\/td>\n<\/tr>\n
10<\/td>\nReport
TABLE 2 <\/td>\n<\/tr>\n
11<\/td>\nPrecision and Bias
Keywords
TABLE 3 <\/td>\n<\/tr>\n
12<\/td>\nA1. QUALIFICATION
A1.1 Specimen Preparation
A1.2 Homogeneity Qualification
A1.3 Aging Equivalence Test Procedure
A1.4 Alternate Product Thickness Qualification <\/td>\n<\/tr>\n
13<\/td>\nA1.5 Example Calculations
TABLE A1.1 <\/td>\n<\/tr>\n
14<\/td>\nTABLE A1.2
TABLE A1.3 <\/td>\n<\/tr>\n
15<\/td>\nA2. PREPARATION OF TEST SPECIMENS FOR SPRAY-FOAM PRODUCTS
A2.1
A2.2
A2.3
A2.4
A2.5
A2.6
A2.7
A2.8
A2.9
FIG. A2.1
FIG. A2.2 <\/td>\n<\/tr>\n
16<\/td>\nX1. EFFECT OF TDSL
X1.1 Background
X1.2 Error in the Measured Thermal Resistivity
X1.3 Error in the Scaled Time
X1.4
X1.5
X1.6 <\/td>\n<\/tr>\n
17<\/td>\nFIG. X1.1
FIG. X1.2 <\/td>\n<\/tr>\n
18<\/td>\nFIG. X1.3 <\/td>\n<\/tr>\n
19<\/td>\nX2. HISTORY OF THE STANDARD
X2.1
X2.2
X3. THEORY OF FOAM AGING
X3.1 The Aging Process
X3.2 Use of Thin Specimens <\/td>\n<\/tr>\n
20<\/td>\nREFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

C1303-09 Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation<\/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>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":109424,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-109423","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\/109423","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\/109424"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=109423"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=109423"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=109423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}