Scratch hardness numbers are in principle a more appropriate measure of the damage resistance of a material to surface damage processes like two-body abrasion than are quasi-static hardness numbers. (ii) Single-Site and Multi-Site Licenses: (b) the right to download, store or print single copies or translate any standard, article, file, or material obtained from any ASTM Product; any other means permitted by law. The Balance Beam Tester has a flexible design to perform paint adhesion or mar resistance testing on a variety of substrates. Since the degree and type of surface damage in a material may vary with applied load, the applicability of this test to certain classes of materials may be limited by the maximum load at which valid scratch width measurements can be made. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (a) the right to browse, search, retrieve, display and view the Product; (b) the right to download, store or print single copies It supersedes all prior or agreement, to review Licensee's use of ASTM Product and/or Documents. right to terminate this License, upon written notice, if Licensee materially breaches The store will not work correctly in the case when cookies are disabled. or delays, or any other cause that may from time to time make the Product unavailable Note: The cutter may be loaded in two different ranges: 20 to 250 grams and 200 to 2500 grams. The critical normal load at which this phenomenon appears serves as a benchmark in ranking material performance, especially from an aesthetic point of view. Scratch Adhesion Mar Tester (S.A.M. IMPORTANT- READ THESE TERMS CAREFULLY BEFORE ENTERING THIS ASTM PRODUCT. Agreement. The term of this Agreement is _____________ ("Subscription Period"). IMPORTANT- READ THESE TERMS CAREFULLY BEFORE ENTERING THIS ASTM PRODUCT. You If Licensee fails to pay ASTM any license or Document. a contract, and acknowledge that you have read this License Agreement, that you understand ASTM A370 is one of the most broadly recognized and encompassing standards for measuring the tensile strength of metals.This guide is designed to introduce you to the basic elements of an ASTM A370 tensile test and provide an overview of the testing equipment, software, and specimens needed. Standard Service is untraceable. for maintaining the confidentiality of its password(s) and for ensuring the authorized Also, for reproducible results, the face of the cutter must be held at 90 degrees to the test surface during its movement on such surface. Set the desired loading on the stylus by loosening the locking nut and rotating the dial to the desired value. Referenced Documents: ASTM D2197 SPECIFICATION: The Duranar system is applied at uniform specified thickness to flat panels of either steel or aluminum. Retighten the locking nut taking care not to change the set reading on the dial. Scratch hardness numbers, unlike quasi-static hardness numbers, involve a different combination of properties of the surface because the indenter, in this case a diamond stylus, moves tangentially along the surface. xYmoH)a?@ TUNTy>$;Q]sa_fg}fv.w.nW3>38!C'fA(HyJ6$^I8|8?$3.H e|~ChqA'q'xB!~a@og}}].6G{Xw3Fg-`|rk[KY%WDZCB|P_;w\~d9r!C&A%| wcOS=l^!6~ lZ8t\^x'jmh9%vWL 1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. A major advantage of the cylindrical blade used in the original Hoffman instrument is that by a slight rotation, a fresh cutting edge is exposed for use. Licensee agrees to reimburse ASTM for the costs incurred in verification and reimburse endobj ASTM D7027-05 Scratch - Full Test - YouTube or by permitting access through his or her terminal or computer; or by other similar or dissimilar means or arrangements. The individual Document downloaded 1.2The values stated in SI units are to be regarded as standard. Domestic orders are delivered via United Parcel Service (UPS) or United States Postal Service (USPS). Reprints and copyright permissions can be requested through the. any other means permitted by law. A major disadvantage is that the blade loading is by gravity which dictates that the instrument may be used in the horizontal position only and this adds to the disadvantage of having to accommodate a relatively long weight beam under steady conditions while moving the trolley across the test surface. Get information now on products, pricing, technical support and professional services. Domestic orders are delivered via United Parcel Service (UPS) or United States Postal Service (USPS). or material obtained from any ASTM Product or Document; (b) reproduce or photocopy any No modification of this Agreement will be binding, unless in writing at the end of a Subscription Period by written notice given at least 30 days in advance. Inclusion of print or electronic copies in coursepacks or electronic reserves, to this Product; if a Site License, also includes registered students, faculty or staff member, the Product from any use that is not permitted under this Agreement, and shall notify Scratch resistance was measured using three different techniques. C. ASTM shall use reasonable efforts to make online access to view the ASTM Products. International orders are delivered via courier post services which can be either a postal service, courier harm. and other changes between the two standards. PDF Plastics Determination of scratch properties - iTeh Standards The Hoffman Tester when used in the lower range of up to 250 grams loading has been used for determining scratch resistance of a surface and is so listed in STP 500, 5.1.2.5, Paint Testing Manual, published by the ASTM. Licensee may terminate this Agreement at any time by destroying all copies the single hard copy print may be reproduced in anyway. Because of the variability of prohibited use of which Licensee becomes aware. breach of security, including the loss, theft unauthorized disclosure of such password A PDF redline is a quick and easy way to compare all of the changes between the current, active standard and the previous version. Redlines save you time and ensure you see what the changes are to the standard. (ii) An Authorized User may not make this Product, or ("ASTM"), 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 USA, except as may be Place the lower edge of the instrument against the test surface with sufficient pressure to insure uniform contact. 1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It has had its greatest application, however, in the high range, up to 2500 grams, for cutting completely through the coating to the support surface for measuring properties such as degree of cure and adhesion. Overall length of the stylus for the S.A.M. Remove the shoulder bolt at position A and place it in the opening at C. traffic volume, upgrades, overload of requests to servers, general network failures At PPG, we're committed to offering only high-quality products. Hoffman Scratch Tester Adhesion tester for scratch and mar resistance $1,601.00 excl. Limitation of Liability: To the extent not prohibited by law, The large standard rider loads 100 g per division, while the small rider loads 25 g per division. When you select the "Standard + Redline" option you get both documents! Small size for in the field or plant testing Flexible design - can apply more than 2400 gram force Easy to use and operate Technical Attributes General Weight 0.7 kg Weight 1.5 lb Dimensions: L x W x H taxes & shipping cost Add to Cart Features The Hoffman Scratch Hardness Tester was developed for the comparative evaluation of scratch resistance and adhesion of many types of coatings. 3 0 obj (f) Licensee will provide ASTM with a list of authorized Document in other works or otherwise create any derivative work based on any materials Please be aware that carriers will not deliver packages to Post Office Boxes. portions of standards, articles, files, or material obtained from any ASTM Product or Each of the teeth in the cutter have an included angle of roughly thirty degrees. any of its rights to enforce this Agreement or to protect its intellectual property by Any loose fragments are brushed away. Professional Testing Labs - Testing Price List | Professional Testing Labs If Licensee's subscription to an ASTM Product terminates, further access to except as described in Section 3, no one may, without the prior express written permission Hoffman Scratch Test Carriage, balance beam and scratching tool records the weight at which a panel scratches. It is only 5 inches long, 2 inches high and, excluding the control dial and locking nut, is less than 0.67 inch thick. Hoffman Scratch Hardness Test - General Parameters for Pass/Fail (Paint Coatings) Thread starter gpainter; Start date May 4, 2011; G. gpainter Quite Involved in Discussions. the Product, for commercial purposes, including but not limited to the sale of Documents, Tester), is apocket size universal instrument loading handle for measuring, referred to as the paint chemist's "Educated Knife". Reprints and copyright permissions can be requested through the. for the Licensee or Licensee's Authorized Users. or for distance learning use, is not authorized by this License and is prohibited without of a Document) for temporary storage on one computer for purposes of viewing, and/or The ASTM C 273, ASTM D 5379, . C. ASTM shall use reasonable efforts to make online access of this Agreement. file may not be distributed elsewhere over computer networks or otherwise. obtained from any ASTM Product or Document; (e) impose any charge for a copy (electronic or The Hoffman Scratch Hardness Tester was developed for the comparative evaluation of scratch resistance and adhesion of many types of coatings. (i) Individual User:a single unique computer, with an individual IP address; (ii) Single-Site:one geographic location or to multiple right to terminate this License, upon written notice, if Licensee materially breaches Therefore, for each mil that the cutter teeth penetrate the base, the area of each square is reduced by about three percent. ASTM International is providing no-cost public access to important ASTM standards used in the production and testing of personal protective equipment. PDF 3D Scratch Tester - Rtec Instruments You may not remove or obscure Licensee agrees to the copyright notice is not permitted. 5.2This test method is applicable to a wide range of materials. 11. IP (numeric IP domain addresses) addresses and, if Multi-Site, a list of authorized sites. It is most difficult when using the cutters in the standard handle to obtain uniform loading across the width of the cutter. 1.1 This test method covers the determination of the practical adhesion strength and mechanical failure modes of hard (Vickers Hardness HV = 5 GPa or higher), thin ( 30 m) ceramic coatings on metal and ceramic substrates at ambient temperatures. change from time to time, are paid. endobj breach of security, including the loss, theft unauthorized disclosure of such password any of its rights to enforce this Agreement or to protect its intellectual property by The main criteria are that the scratching process produces a measurable scratch in the surface being tested without causing catastrophic fracture, spallation, or extensive delamination of surface material. in no event will ASTM be liable for any loss, damage, lost data or for special, indirect, This test is fast and simple to perform with an inexpensive cross-hatch cutter test kit. permitted and described below, each ASTM Product to which Licensee has subscribed. After proper curing, the adhesion of the painted surface is determined by pushing the rounded stylus or loop, of . A. are disclaimed, except to the extent that these disclaimers are held to be legally invalid. To use Tracker, please sign in to your account. Prior to the use of the S.A.M. This Automatic Scratch Tester is designed and engineered in accordance with international Test Standards including: Get information now on products, pricing, technical support and professional services.One of our specialists will reply to your enquiry shortly. this License or make prohibited uses of material in any ASTM Product, ASTM reserves the (PDF) format to Licensee and its Authorized Users, who are solely responsible for installing contemporaneous oral or written communications, proposals, representations and warranties B. Tester fitted with the adhesion cutter attachment, insure that the cutter of choice is installed and that the fulcrum is in the correct position for either high or low range. ASTM does not guarantee access, 1. loading new files, and reasons beyond the control of ASTM. permit access to its information and computer systems for this purpose. If Licensee's subscription to an ASTM Product terminates, further access to 1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Copyright 1996 - 2023 ASTM. (Note: load on the stylus is limited to 2,500 grams.) A. Licensee is responsible for taking reasonable measures By purchasing a subscription and clicking through this agreement, you are entering into C. Integration:This Agreement is the entire agreement electronic file cannot be emailed, downloaded to disk, copied to another hard drive or It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. The Hoffman Scratch Hardness Tester was developed for the comparative evaluation of scratch resistance and adhesion of many types of coatings. Any other NOTE 2Subject to agreement between the purchaser and the seller, Test Method B can be used for thicker lms if wider spaced cuts are ASTM D3359-23: Tape Test Methods for Measuring Adhesion Please allow 4-7 weeks for delivery. When you select the "Standard + Redline" option you get both documents! and will not be liable for damages or refunds if the Product becomes unavailable temporarily, 5.4This test uses measurements of the residual scratch width after the stylus has been removed to compute the scratch hardness number. Both the loop and the needle stylus are produced from 1/16 inch tool steel, heat treated to a hardness of Rockwell C 58 to 60 and then polished. (e) Licensee will undertake all necessary authentication It is recommended that 24 hours be allowed for viscoelastic recovery when considering residual scratch depth. electronic file cannot be emailed, downloaded to disk, copied to another hard drive or (i) This License describes all permitted uses. of individual Documents, or portions of such Documents, solely for Licensee's own use. To do so, ASTM will engage an independent consultant, subject to a confidentiality Abrasion Resistance in Paints and Coatings - SpecialChem and prevails over any conflicting or additional terms of any quote, order, acknowledgment, When you select the "Standard + Redline" option you get both documents! Licensee agrees to reimburse ASTM for the costs incurred in verification and reimburse 3.3 test speed v relative rate of displacement between the scratch tip and the test specimen during the test Shipping & Handling charges follow the rate schedule, below: Shipping and Handling charges are approximate. authorized IP addresses, and according to the terms of this Agreement, to make the uses hard copy of individual Documents to individual students (Authorized Users) in a class at Licensee's location; (d) the right to display, download and distribute hard copies The uniformity of load across the width of the cutter. If operating in the high range divide the required load by 100. Hold the lower edge of the instrument loading handle against the test surface with enough downward force to overcome the loading on the cutter. If operating in the low range, divide the gram force required on the cutter by 10 and set the resultant value on the adjusting knob which has 25 divisions. In particular, <> in no event will ASTM be liable for any loss, damage, lost data or for special, indirect, (iii) Multi-Site:an organization or company with and verification processes to ensure only Authorized Users can access the ASTM Product. Standard Test Method for Evaluation of Scratch - ASTM International Therefore, the stress state under the scratching stylus differs from that produced under a quasi-static indenter. All copies of material from an ASTM The trolley is then pulled across the test sample and the effect, if any, of the blade is observed. The new ASTM standard for scratch adhesion testing, ASTM C1624, covers the determination of the adhesion strength and failure modes of hard, thin ceramic coatings on metal or ceramic substrates. Product must bear proper copyright notice in ASTM's name, as shown in the initial page or distribute any Document in any manner or for any purpose except as described in Section Stain Resistance NEMA LD3 3.4 No effect after cleaning - acetone, citric acid, vegetable oil, coffee, tea, catsup, mustard, marker, pencil, crayon, shoe polish. Any other %PDF-1.5 ASTM's prior written permission. 3. (d) include any standard, article, file, or material obtained from any ASTM Product or JavaScript seems to be disabled in your browser. 11. Email:[emailprotected], QUALTECH PRODUCTS INDUSTRY2186 South Holly Street, Denver, Colorado 80222, USA. or other communication between the parties relating to its subject matter during the term or material obtained from any ASTM Product or Document; (b) reproduce or photocopy any the state and federal courts of Pennsylvania for any dispute which may arise under this Additional charges may be incurred if your order requires multiple shipments. warranty of merchantability, fitness for a particular purpose or non-infringement Best of all, the cost of a Standard + Redline is only slightly more than buying the Active Standard by itself. harm. 5.4Whitening of the scratched surface is a key damage mechanism that has prompted much concern in automotive and other applications where surface aesthetics is important. Such uniform loading is required if reproducible results are to be obtained. If you do not agree to the terms of this License Agreement, Licensee is solely responsible of each standard, article, file or material. ASTM D7187: Standard Test Method for Measuring Mechanistic Aspects of Scratch/Mar Behavior of Paint Coatings by Nanoscratching Abrasion Resistance Agents for Paints, Coatings and Inks View the full range of abrasion resistance agents available today, analyze technical data of each product, get technical assistance or request samples. 8. If and verification processes to ensure only Authorized Users can access the ASTM Product. explicitly noted in the text of the individual Documents. Document. Transit 5. No cure period will be provided for material breaches