ASTM D1337-10(R2021) pdf free download

ASTM D1337-10(R2021) pdf free download.Standard Practice for Storage Life of Adhesives by Viscosity and Bond Strength
1. Scope
1.1 This practice describes a laboratory method by which the storage life of an adhesive may be measured using viscosity, adhesive strength, or a combination thereof. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
4. Significance and Use
4.1 This practice may be used to determine the storage life of any adhesive where this information is required. 4.2 This practice is intended to determine whether the storage life conforms to the minimum specified storage life required of an adhesive by viscosity tests (Procedure A) or by bond strength tests (Procedure B), or by both. It does so by providing results before and after a set of standard conditions that simulate storage life. The determination of what the requirements for percentage ofthe original property retained or the minimum value for a property is found in the relevant material specification, or as agreed between manufacturer and user.
6. Storage of Adhesive
6.1 Store the adhesive and all its components, if there are any, in their original and unopened containers when the container is approximately litre (or quart) size. When the adhesive is supplied in larger containers, the desired number of samples is withdrawn from the large container. In this latter case, the size, type of closure, and nature (such as glass, steel, or tin-coated steel) of the small storage container is agreed upon by the purchaser and the manufacturer. 6.2 For storage temperature, use any one of the standard temperatures specified in Practice D618. The time of storage is any time agreed upon by the purchaser and the manufacturer. If the effect of storage time is desired, it is suggested that at least three quantities of the adhesive be stored under the prescribed conditions, and tested at various intervals of time. Use a separate, unopened container at each such test.
9. Report
9.1 Report the following information: 9.1.1 Complete identification of the adhesive, including type, source, manufacturer’s code number, form, date of test, date of manufacture, and the mixing proportions followed in preparing the adhesive for use, 9.1.2 Conditions of storage, including temperature, length of storage, and type and size of container used, 9.1.3 Complete identification of the viscometer and details identified by Test Methods D1084, 9.1.4 Viscosity results on both the freshly received and stored adhesives, and 9.1.5 Pertinent observations, such as settling, discoloring, separating, caking, or gelling which might influence the usability of the adhesive.
13. Preparation of Test Specimens
13.1 Prepare test panels or sheets for determining the bond strength of the adhesive in accordance with any of the ASTM test methods suitable for the purpose. For example, the lap-type shear specimens or the spool-type tension specimens such as those described in the following methods are acceptable for use: Test Method D897, Test Method D906, and Test Method D1002. 13.2 In preparing the test specimens, use the adhesive in accordance with the instructions of the manufacturer. Prepare test specimens for bond strength for both the original adhesive as received and for the adhesive which has been subjected to the storage test, using the same procedure and conditions of bonding.