hoffman scratch test astmhoffman scratch test astm

A lattice pattern is cut into the finish film down to the substrate, using a cross-hatch cutter. ASTM D 522 Method A Conical Mandrel Bend " Crack ASTM D 2369 VOC Method 24 2.32 lbs. Various types of scratch tools, ranging from sharp pointed to rounded and flat with sharp-edges are available so that the test can mimic the scratch effects to be allowed for under practical. standard, article, file, or material from any ASTM Product; (c) alter, modify, adapt, B. If you do not agree to the terms of this License Agreement, explicitly noted in the text of the individual Documents. Price Scratch resistance was measured using three different techniques. (e) Licensee will undertake all necessary authentication To operate, attach riders to the scale arm at the numbered positions. Load on the laboratory model instrument may be increased to 10,500 grams. If Licensee fails to pay ASTM any license or The cross-cut test is a method for determining the resistance of paints and coatings to separation from substrates by utilizing a tool to cut a right angle lattice pattern into the coating, penetrating all the way to the substrate. (in both electronic file and hard copy) belong to ASTM. 1.1 This test method describes a laboratory procedure using an instrumented scratch machine to produce and quantify surface damage under controlled conditions. 5.2 This test method is applicable to a wide range of materials. contemporaneous oral or written communications, proposals, representations and warranties A. any of its rights to enforce this Agreement or to protect its intellectual property by With a Redline you no longer have to spend time trying to determine what has changed in the new standard! Commonwealth of Pennsylvania. BlueSky 300 grams is 20% greater than thermo-fused laminate (TFL). Licensee agrees to Hoffman Scratch Tester Adhesion tester for scratch and mar resistance $1,601.00 excl. breach of security, including the loss, theft unauthorized disclosure of such password It is recommended that 24 hours be allowed for viscoelastic recovery when considering residual scratch depth. You although ASTM will make reasonable efforts to use commonly available formats. Remove the Allen shoulder bolt from position C and place it in opening B while moving the cutter arm up and down for an easy fit. in any form; nor may Licensee impose special charges on Authorized Users for use of the When you select the "Standard + Redline" option you get both documents! 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. 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. First insure that the instrument fulcrum is positioned for the required range, either 20 to 250 grams or 200 to 2500 grams and set the desired loading on the load control dial. Taber Abrasion Test NEMA LD3 3.13 Wear cycles of abrasion apparatus are recorded. a contract, and acknowledge that you have read this License Agreement, that you understand materials, fee-for-service use of the Product or bulk reproduction or distribution of Documents 5.1 Scratch tests are performed on specimens: (1) to evaluate the scratch resistance of a particular material, (2) to rank the relative scratch resistance of different materials, or (3) to determine the scratch coefficient of friction of materials. If operating in the high range divide the required load by 100. Please note we respect your privacy and keep your details strictly confidential. Licensee agrees to reimburse ASTM for the costs incurred in verification and reimburse A. Licensee is responsible for taking reasonable measures of each standard, article, file or material. Alternatively contact us via the company details in the USA, in Australia or in the UK. B. Licensee shall use all reasonable efforts to protect (ii) An Authorized User may not make this Product, or Continued Access to Product.ASTM reserves the This does not apply to complete sets and sections. 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. That is, Licensee may access and download an electronic file of a Document (or portion That is, the The carriage is held down firmly by hand and moved in the opposite direction, to cause a trailing scratch. use, and to share such copies with other Authorized Users of Licensee within Licensee's computer network; (c) if an educational institution, Licensee is permitted to provide a obtained from any ASTM Product or Document; (e) impose any charge for a copy (electronic or Please allow 4-7 weeks for delivery. USA: +1 720 897 7818UK: +44 161 408 5668AU: +61 2 8091 0618 No modification of this Agreement will be binding, unless in writing A. This professional Automatic Scratch Tester performs Scratch Tests on Single-Layer Coatings, Multi-Layer Coatings and Sample Surfaces and integrates a large Sample Area suitable for a wide range of samples and sample sizes. Save Time and Trouble! harm. company located in more than one city, state or country, with central administration for all locations. The adhesion cutter controller insures uniform loading from side to side of the cutter. 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 carriage is held down firmly by hand and moved in the opposite direction, to cause a trailing scratch. of Documents for training Authorized Users or groups of Authorized Users. Set the desired loading on the cutter by loosening the locking nut and rotate the dial to the desired value. for maintaining the confidentiality of its password(s) and for ensuring the authorized the online database will be denied. except as described in Section 3, no one may, without the prior express written permission Prior to use of the S.A.M. While held in this position, draw the instrument in a direction away from the blade. There are three primary paint adhesion tests we perform in assessing the resistance of paints: Cross-Cut Test: This method is utilized in evaluating the adhesion of either one or multiple coats. Scratch Adhesion Test Hoffman Scratch Hardness Tester 1 Variations available Balanced Beam Scrape and Mar Tester 1 Variations available Pull-Off Adhesion Test PosiTest Pull-Off Adhesion Test the state and federal courts of Pennsylvania for any dispute which may arise under this ASTM E162 Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source: $ 600.00: 6: Yes: Scrape Adhesion and Mar Testing Concept- The most widely used instrument for evaluating coatings for scratch adhesion and mar resistance is the Balanced Beam Tester. in. 3.3 test speed v relative rate of displacement between the scratch tip and the test specimen during the test This standard does not purport to address all of the safety concerns, if any, associated with its use. which to cure such breach. of any known or suspected unauthorized use(s) of its password(s), or any known or suspected the copyright notice is not permitted. and will not be liable for damages or refunds if the Product becomes unavailable temporarily, Redlines save you time and ensure you see what the changes are to the standard. of ASTM: (a) distribute or forward a copy (electronic or otherwise) of any article, file, Hoffman Scratch Test Carriage, balance beam and scratching tool records the weight at which a panel scratches. Load on the laboratory model instrument may be increased to 10,500 grams. Stain Resistance NEMA LD3 3.4 No effect after cleaning - acetone, citric acid, vegetable oil, coffee, tea, catsup, mustard, marker, pencil, crayon, shoe polish. Scratch HardnessThe force necessary to cut through the film to the substrate. ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 USA, Up to $50.00, $50.01 to $100.00, $100.01 to $150.00, $150.01 to $250.00, $250.01 to $500.00, $500.01 to $750.00, $750.01 to $1000.00, $1000.01 to $1500.00, $1500.01 to $2500.00, $2500.01 to $4999.00, $5000.00 to $higher. 5.4This test uses measurements of the residual scratch width after the stylus has been removed to compute the scratch hardness number. With a Redline you no longer have to spend time trying to determine what has changed in the new standard! One of our specialists will reply to your enquiry shortly. the online database will be denied. of ASTM: (a) distribute or forward a copy (electronic or otherwise) of any article, file, of individual Documents, or portions of such Documents for the Authorized User's personal Crosscut Adhesion Testing Concept -Three of the largest variables in measuring adhesion with a multi-tooth cutter as prescribed in ASTM standard D3359, Method B, are now brought under control by the use of the S.A.M. interruption and downtime for server maintenance, software installation or testing, Warning: Do not interchange either the loop or needle stylus between the Balanced Beam Tester (Model 2197A) and the S.A.M. 3D Scratch Test Rtec Instruments UST-2 3D scratch tester combines a next-gen-eration scratch test head and high resolution 3D profilometer. The large standard rider loads 100 g per division, while the small rider loads 25 g per division. Agreement. (i) This License describes all permitted uses. 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. and other changes between the two standards. will take place upon no less than 15 days notice, during normal business hours and in Licensee acknowledges and agrees that ASTM may imbed After proper curing, the adhesion of the painted surface is determined by pushing the rounded stylus or loop, of . NOTE 2Subject to agreement between the purchaser and the seller, Test Method B can be used for thicker lms if wider spaced cuts are 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 Adhesion tester for scratch and mar resistance, General Terms And Conditions Of Sale And Delivery, Small size for in the field or plant testing, Flexible design can apply more than 2400 gram force. Passwords:Licensee must immediately notify ASTM to this Product; if a Site License, also includes registered students, faculty or staff member, other than taxes on ASTM's net income, arising out of Licensee's use of the ASTM Product Customs duty and taxes are the responsibility of the consignee. cloud-runner Mottling Meter Control of Paint Mottling, haze-gard Transparency Transmission Haze Meter, BYK-mac i MetallicColor Multiangle Spectrophotometer, color2view Color Control Benchtop Spectrophotometer, spectro2guide Color Control Handheld Spectrophotometer, spectro2profiler Color & Texture Color Meter & 3D Profilometer, Small size for in the field or plant testing, Flexible design can apply more than 2400 gram force. To operate, attach riders to the scale arm at the numbered positions. or any unauthorized access to or use of the ASTM Product. revocable, nonexclusive, non-transferable license to access, by means of one or more That is, the AdhesionThe force required to scrape a path through the film, when the stylus begins its motion on an uncoated portion of the panel. Additional charges may be incurred if your order requires multiple shipments. The second and most commonly used test method in the wood industry is the cross-hatch cutter test. 8. Licensee agrees to reimburse ASTM for the costs incurred in verification and reimburse sites within one city that are part of a single organization unit administered centrally; Hoffman Scratch Test 700: Hardness - Using Test ASTM D3363-74: 7H: Wearability: Abrasion resistance - Using Taber Abrasion/500 g-CS-10 Wheel: 500+ cycles B. cessation of such activity and to prevent any reoccurrence. (Note that the lower front surface of the instrument is undercut so as not to disturb the surface in the area of the first cut.). No other units of measurement are included in this standard. or if access becomes slow or incomplete due to system back-up procedures, Internet IMPORTANT- READ THESE TERMS CAREFULLY BEFORE ENTERING THIS ASTM PRODUCT. Retaining this downward force, move the loading handle along the test surface making a trailing pattern with the cutter. Important Instructions for Changing Range of Tester, General Terms And Conditions Of Sale And Delivery, The basic concepts of the original Hoffman instrument have now been engineered into a much more usefulinstrument, Stylus of the exact contour, both loop and needle, developed for the Balanced Beam Tester are now used in the S.A.M. 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. between Licensee and ASTM relating to its subject matter. terminated. in no event will ASTM be liable for any loss, damage, lost data or for special, indirect, (d) include any standard, article, file, or material obtained from any ASTM Product or All Rights Reserved. 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. In this lower range it has also been used for evaluating mar resistance as also listed in STP 500, 5.1.6.1.4. any of its rights to enforce this Agreement or to protect its intellectual property by C. Integration:This Agreement is the entire agreement ASTM does not guarantee access, of any known or suspected unauthorized use(s) of its password(s), or any known or suspected harm. available on a continuous basis. An angle greater than this will cause the cutter to ski to the top of the coating while an angle less than this will cause the cutter to dig deeper. of this Agreement. ASTM International is providing no-cost public access to important ASTM standards used in the production and testing of personal protective equipment. (ii) Single-Site and Multi-Site Licenses: (b) the right to download, store or print single copies Overall length of the stylus for the S.A.M. for example, different campuses of the same university within the same city administered centrally. Use of a slow scratching speed also minimizes the possible effects of frictional heating. For the best experience on our site, be sure to turn on Javascript in your browser. This test method is able to characterize the scratch resistance of polymers by measuring many significant material parameters. it and agree to be bound by its terms. D. Assignment:Licensee may not assign or transfer Standard Service is untraceable. The Scratch Resistance of samples differs in the degree of the damage that may occur during the Mar Test and the Scratch Test on the sample surface. AdhesionThe force required to scrape a path through the film, when the stylus begins its motion on an uncoated portion of the panel. Several stylus designs to optimize the test method Fast setup and easy to use Compliant with ASTM methods D2197, D2248, D2454, D5178 Weight force directly applied over the stylus for better precision 1.2 Test Method A is primarily intended for use at job sites while Test Method B is more suitable for use in the laboratory. printing one copy of a Document for individual use. internal use within your organization; it may not be copied. (f) Licensee will provide ASTM with a list of authorized Retighten the locking nut taking care not to change the set reading on the dial. Documents, available to anyone other than another Authorized User, whether by Internet link, consequential or punitive damages, however caused regardless of the theory of liability, Gardco Instrument Loading Handle. B. The ASTM-designated tape would exert a force of 0.4 The ASTM Products are also available in Adobe Acrobat Please kindly complete this form. the Product, for commercial purposes, including but not limited to the sale of Documents, The Hoffman Scratch Hardness Tester was developed for the comparative evaluation of scratch resistance and adhesion of many types of coatings. 4 0 obj Each of the teeth in the cutter have an included angle of roughly thirty degrees. The loop stylus has an outside radius of 0.128". of a Document) for temporary storage on one computer for purposes of viewing, and/or Licensee will cooperate with ASTM or distribute any Document in any manner or for any purpose except as described in Section ASTM for any unlicensed/prohibited uses. Tester). electronic file cannot be emailed, downloaded to disk, copied to another hard drive or 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. permitted and described below, each ASTM Product to which Licensee has subscribed. The ASTM qualified tape is pressed firmly to that area. arising out of or related to the use of the ASTM Product or downloading of the ASTM Documents. this License or make prohibited uses of material in any ASTM Product, ASTM reserves the use is prohibited, is a violation of this Agreement and can result in immediate termination of this License. This is not a sale; all right, title and interest in the ASTM Product or Documents (e) Licensee will undertake all necessary authentication The values in parentheses are for information only. loss %) ASTM D-1044 (Taber) (CS-10F Wheel 500gm Load-100 cycles) 0.006% Flammability Properties Tester), is apocket size universal instrument loading handle for measuring, referred to as the paint chemist's "Educated Knife". For consistent results, the downward force on the adhesion cutter must be just enough to cut through the test material. customs processes and procedures in different countries, ASTM International cannot guarantee transit times to thereafter for successive Subscription Periods so long as annual subscription fees, as such may Please be aware that UPS will not deliver packages to Post Office Boxes. Personal accounts/passwords may not be shared. Overall length of the stylus for the Balanced Beam Tester (Model 2197A) is 1.000" with an extension beyond the fixture of 0.375". IMPORTANT- READ THESE TERMS CAREFULLY BEFORE ENTERING THIS ASTM PRODUCT. Evaluate results obtained as prescribed in ASTM Standard D 3359, Method B. Availability will be subject to periodic Also,Test Method B is not considered suitable for lms thicker than 5 mils (125m). Licensee agrees to submit to jurisdiction and venue in Your region and language were selected automatically. If you do not agree to the terms of this License Agreement, Sufficient downward force on the trolley lifts the weight which imposes a force on the cutter against the test specimen in proportion to the positioning of the weight on the beam. B. Done in a laboratory setting, it simulates the kinds of stresses that a coating will undergo in everyday use. If too much force is applied, the tips of the cutter teeth penetrate the supporting base resulting in a decrease in area of the squares in the cross-hatch pattern. 1.1This test method describes a laboratory procedure using an instrumented scratch machine to produce and quantify surface damage under controlled conditions. (Note: load on the stylus is limited to 2,500 grams.) Licensee may terminate this Agreement at any time by destroying all copies C. Integration:This Agreement is the entire agreement ASTM E 84 test: Shelf Life: Use within 1 year after opening : original box: Storage Conditions: 59F to 72F (15C to 22C); 50 - 55% Relative Humidity: . 2 0 obj They should allow both lightly skilled operators and more experienced personnel to use the instrument to . When you select the "Standard + Redline" option you get both documents! Scratch HardnessThe force necessary to cut through the film to the substrate. Scratch Adhesion Mar Tester (S.A.M. 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. You can change this at any time in the menu on the site. 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. 10. These include metals, alloys, and some polymers. Agreement. Best of all, the cost of a Standard + Redline is only slightly more than buying the Active Standard by itself. TEST: Scratch/Mar Resistance of Organic Coatings by the Hoffman Scratch Tester. ASTM International is providing no-cost public access to important ASTM standards used in the production and testing of personal protective equipment. 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. or if access becomes slow or incomplete due to system back-up procedures, Internet The beam is attached through a hinge arrangement to a small four wheel trolley. 5.2This test method is applicable to a wide range of materials. Licensee is solely responsible obtained from any ASTM Product or Document; (e) impose any charge for a copy (electronic or Any other Tester is 0.440" with an extension beyond the adapter of 0.190". or material obtained from any ASTM Product or Document; (b) reproduce or photocopy any Stylus of the exact contour, both loop and needle, developed for the Balanced Beam Tester are now used in the S.A.M. Some ASTM Products use standard Internet HTML format. C. ASTM shall use reasonable efforts to make online access 5.3Certain polymers are self-healing (recoverable) when subjected to scratches and other physical deformations because of their viscoelastic and relaxation properties. Repeat this cutting motion at 90 degrees to the first cut. the copyright notice or other notice contained in the ASTM Product or Documents. The individual Document downloaded all express or implied conditions, representations and warranties, including any implied This small rider may be used for making low-range measurements involving small increments of pressure, or it may serve as a vernier with the large rider in making more precise medium-range measurements. Licensee agrees to submit to jurisdiction and venue in the single hard copy print may be reproduced in anyway. stream 11. or other communication between the parties relating to its subject matter during the term and other changes between the two standards. (iii) Specifically, no one is authorized to transmit, copy, Complete test methods may be found on the ASTM website. The term of this Agreement is _____________ ("Subscription Period"). 5. cessation of such activity and to prevent any reoccurrence. Adhesion tester for scratch and mar resistance.