ASTM-D1994 › Standard Test Method for Determination of Acid Numbers of Hot-Melt Adhesives (Withdrawn 2021)
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This test method covers the determination of acid numbers of hot-melt adhesives.
1.2 This test method is applicable for hot-melt and hot-melt/acid systems that are soluble under the conditions described. The hot melt must also give light- or medium-colored solutions when dissolved. If this is not the case another method must be used.
1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
1.4 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. Specific caution statements are given in 7.1 and 7.2.
Significance and Use
4.1 Acidic hot-melt adhesives are useful in many applications, as the acid functionality can contribute to better substrate wetting and better adhesion to polar, nonporous surfaces.
4.2 Acidic hot-melt adhesives are also quite corrosive to conventional iron and steel adhesive application equipment. The acid number determination will tell an equipment manufacturer if corrosion-resistant equipment for an application should be recommended. The need for corrosion-resistant equipment will vary depending on the acid number of the hot-melt adhesive and type of metal that will be bonded.
Keywords
acid number; hot-melt adhesive;
To find similar documents by ASTM Volume:
15.10 (Packaging; Flexible Barrier Packaging)
To find similar documents by classification:
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-D1994-07(2015)
Revision Level
2007 R15 EDITION
Status
Cancelled
Modification Type
Withdrawn
Publication Date
Nov. 1, 2015
Document Type
Test Method
Page Count
2 pages
Committee Number
D10.14