ASTM E77 Inspection and Verification of Thermometers

Scope: ASTM E77 is crucial to ensure that thermometers used indicate temperatures within the maximum scale and are compatible with the apparatus and the purpose for which they are designed. The procedures are also used for other liquid-in-glass thermometers. Procedure In ASTM E77, first gas bubbles are detected and removed readily. Compliance is determined with...

Scope: The goal of ASTM E69 is to determine the combustibility of fire-retardant-treated wood specimens based on their weight loss % during controlled fire exposure settings. Other possible data include weight loss rate, blazing and after glowing time, temperature increase, and maximum vertical flame progress. This test method has proven valuable in comparing the effectiveness...

Scope: ASTM E53 test for the chemical analysis of copper is primarily used for compliance with compositional specifications. Procedure In ASTM E53, the copper is electrolytically deposited and weighed on a tarred platinum cathode after the sample is dissolved in an acid combination. Atomic absorption spectroscopy is used to determine how much copper is left...

Scope: ASTM E37 is primarily intended to test such materials for compliance with compositional specifications. It is assumed that all who use these methods will be trained analysts capable of performing common laboratory procedures skillfully, and work will be performed in a properly equipped laboratory. Procedure: Test Methods Sections Copper, bismuth, silver, and zinc by...

Scope: ASTM E34 is used for metals and alloys to ensure that the materials meet compositional standards. All users of these test methods are expected to be qualified analysts capable of completing conventional laboratory operations competently and safely. The job will most likely be done in a professionally equipped laboratory. Test Procedure: The analytical procedures...

Scope: The standard test method of ASTM E23 tells about the behavior of metal when subjected to a single application of a force resulting in multi-axial stresses associated with a notch, coupled with high rates of loading and, in some instances, high or low temperatures. Procedure: In ASTM E23, a suitable specimen, a set of anvils,...

Introduction to ASTM E21 Elevated Temperature Tension Testing The ASTM E21 test method establishes the tensile properties of metallic materials at elevated temperatures, i.e., yield strength, ultimate tensile strength, and elongation. This test practice covers all metals and alloys, i.e., all of the ferrous, the non-ferrous, and the heat-resistant type of metals and all of...

Introduction The ASTM E10 test method uses the Brinell indentation hardness principle to determine the Brinell hardness of metallic materials. The values are in kilograms-force (kg). This test is considered satisfactory for acceptance testing of commercial shipments and has been used extensively in the industry. However, testing a specific part may not represent the physical...

Scope: ASTM D7912 test procedure is useful for a variety of finished leathers. Finish stability is also important to find the application and function of leather. Procedure: The finish is visually evaluated after the test specimen has been exposed to prolonged heating and then flexed manually in this ASTM D7912 test procedure. Specimen size: The...

Plastic specimen undergoing tensile strength testing on universal testing machine

Scope: The greater a carbon black resists compression by having substantial aggregate irregularity and non-sphericity, the greater the compressed and void volumes. So for the sake of more carbon black compression, a high amount of energy is required to compress the sample per unit void volume. Procedure: In ASTM D7854, the measured compressed volume of...

Scope: ASTM D7907 is useful for the evaluation of bactericidal efficacy against a wide range of germs and circumstances, allowing manufacturers to compare performance. There are four specific bacteria listed against which antibacterial efficacy is compared. Procedure: In ASTM D7907, two test methods are intended to measure the amount of bactericidal efficacy of gloves under...

Scope: ASTM D7842/D7842M determines the compatibility of tack attached buttons or prong fastener attached buttons to fabrics. These fabrics are normally used in apparel etc. The buttons are attached to the fabric in the way they will be used. It is also used for acceptance testing of commercial shipments of garments with attached buttons. Procedure:...

Scope: ASTM D7811 is useful when a small specimen or cut parts need to be evaluated for bow and skew, provided a wrap or fill, or both reference lines are available, to aid in aligning the tool. This test method is used for measuring bow and skew in fabrics in rolls. Test Procedure: In ASTM...

Scope: ASTM D7836 method for stress measurements has been useful in establishing root causes of flow problems such as extreme orange peel and sagging etc. The stress ramp applied to the material exceeds the yield stress of the material. Torque increases the rotation of the spindle and the value of the torque is converted into...

Scope: ASTM D7835/D7835M is quite reliable for measuring solvent resistance by using a mechanical rubbing machine. The mechanical rubbing machine provides consistent stroke length, rate, pressure, and contact area that are not subject to variables such as human fatigue. The test solvent used in the rubbing machine has a significant effect on the number of...

Scope: ASTM D7834 is a highly reliable method for determining the shedding properties of paint brushes. During the process of coatings, paint brushes display the shedding of filling material on coated surfaces. A measure of this shedding filling material determines the paint brush’s ability to resist shedding during application. Procedure: In ASTM D7834, the paintbrush...

Scope: ASTM D7804 is only used for comparative testing using one operator for each set of applications. Fibers that are released during painting can lead to a finish that is aesthetically unacceptable. Test Procedure: In test method ASTM D7804, the paint roller cover that is to be evaluated is used to paint a section of...

Scope: ASTM D7791 test is used to determine the effect of processing and fatigue resistance of plastic material. The results are used as a guide for the selection of plastic materials for service under repeated flexural stress. Test Procedure: In ASTM D7791, a specimen of rectangular or circular cross-section is gripped and pulled equally in...

Introduction ASTM D7774 is an international guideline for determining rigid and semi-rigid plastics’ dynamic full reversed Flexural fatigue properties under flexural conditions. Further, the stress and strain levels are kept below the material’s proportional limit to remain within the relative elastic range. The test can be performed using either three-point or four-point bending systems. Scope...

Scope: In this ASTM D7723 test method, filler macrodispersion, as a measure of mixing quality, is used to characterize their assimilation into the rubber matrix. This also tests the ability of colored rubbers to mix well. To photograph a broad spectrum of colors, it uses variable exposure. Procedure: In ASTM D7723, the already cut specimen...

Scope: ASTM D7710 test procedure establishes a consistent approach for gathering data for research and development, quality control, acceptance and rejection under specified conditions, and particular objectives. Procedure: In ASTM D7710, the vessel is filled with the media and is then submerged at the bottom of the vessel. The media is carefully removed, and the...

Scope: The goal of the ASTM D7709 tests is to acquire accurate WVTR results that can be utilized to distinguish between different barrier packages for medicinal goods. Procedure: ASTM D7709 desiccant is poured into the bottle, which is then closed in the usual manner, including any membrane (tamper-evident or otherwise) sealed in place. The desiccant-filled...

Scope: The ASTM D7705 test technique is used to determine the alkaline resistance data for material requirements, R&D, quality assurance, and structural design and analysis. Procedure: ASTM D7705 test technique establishes a uniform requirement for assessing the alkali resistance of FRP bars. Procedure A is used to determine the alkali resistance of FRP specimens without...

Scope: ASTM D7681 test technique determines the gradation (size distribution) of glass beads used in pavement marking applications. Glass beads significantly influence the retroreflective effectiveness of a pavement marking system. Procedure: In ASTM D7681, a flowing stream digital image analyzer examines the glass particles for image processing and photo-optical single particle counting technology. The amount...

Scope: Contact with some lubricants, notably petroleum-based products, is known to cause natural rubber latex to weaken. The ASTM D7661 testing process was created to help lubricant producers test if a particular personal lubricant substantially impacted the tensile and airburst characteristics of an NRL condom. Procedure: As per ASTM D7661 testing, after 60 minutes of...

Scope: ASTM D7646 shows the relationship between cooling time and temperature. The findings of this test technique can be utilized as a reference for quenchant selection or comparison of quench severities of new and used quenchants. Procedure: In ASTM D7646, the cooling time vs. temperature of the silver rod probe assembly is evaluated after heating...

Scope: The U.S. Environmental Protection Agency (EPA) has identified the N-methyl carbamate (NMC) insecticides, such as aldicarb, carbofuran, methomyl, oxamyl, and thiofanox as having an influence on the human neurological system as they lower enzyme activity. The principal toxicological consequence of the regulatory concern of the EPA in analyzing the NMC’s food, and drinking water,...

Scope: The process outlined in ASTM D7639 is intended to offer a method for determining the coating weight of zirconium treatments applied to metal substrates. The overall coating weight and zirconium coating weight of a zirconium-containing treatment can be determined using the ASTM D7639 procedure. Procedure: In ASTM D7639 testing, the peak intensity of the...

Scope: ASTM D7635/7635M test method determines the thickness of various coatings. This is done by measuring their magnification, calibration, and resolution with the help of a microscope. The results help specify the coatings’ application, quality, reliability, performance, and durability. Moreover, research can be conducted, and developmental standards can be devised to improve the performance of...

Introduction ASTM D7617/7617M is a standard test method developed by ASTM International to measure the transverse shear strength of fiber-reinforced polymer matrix composites. This test assesses the material’s ability to resist shear forces applied perpendicular to the fiber direction, essential for composite materials’ structural integrity and performance in aerospace, automotive, and construction applications. The method...

Scope: Paint organizations and natural substance providers utilize ASTM D7514 to evaluate the viability of inside building introductions for hindering stains from seeping through to a topcoat. Diverse ink-stained substrates might give different outcomes for stain-impeding execution for a groundwork and topcoat framework. This test technique might be utilized for several various ink-stained surfaces. Procedure:...

Scope: ASTM D7513 is used to determine the initial capacity of unused cartridges, evaluate unused mixed bed ion exchange cartridges for conformance to specifications, and calculate capacity on a cartridge basis. This test method is also important to test different mixed bed resin cartridges. Procedure: The ASTM D7513 test strategy is debilitating a cartridge of...

Scope: Dialkyldithiocarbamates (DTCs), benzothiazoles, and thiurams are regularly utilized as vulcanization gas pedals in NRL items. A UV spectrophotometer with recognition at 320 nm is used to gauge the ZDTC, mercaptobenzothiazole, and thiurams in the ASTM D7558 test method. Procedure: In ASTM D7558, the elastic material is cut into tiny pieces, and around 1 g...

Scope: The ASTM D7605 test method is essential for determining the dynamic and viscoelastic properties of polymers and thermoplastic elastomers at specific temperatures. These properties play a crucial role in product processing and its performance evaluation. Moreover, the results obtained are used for quality control, development, and research purposes. This creates a standard for deciding...

Scope: ASTM D7599 test method deals with the determination of ethanolamines in surface water which serve as chemical weapons. There can be varied uses of these chemical weapons, such as their application in the production of adhesives, agricultural products, cement grinding aids, detergents, various chemical products, polishes, pesticides, and pharmaceuticals. These ethanolamines are biodegradable and...

Introduction ASTM D7536 is an international standard that covers the estimation of chlorine by monochromatic, frequency dispersive X-ray fluorescence spectrometry (MWDXRF) in sweet-smelling hydrocarbons, their subsidiaries, and related synthetic substances. The qualities expressed in SI units are to be viewed as standard. It is a non-destructive test method crucial in various lab settings and industrial...

Introduction to ASTM D7490 Contact Angle Measurements The ASTM D7490 test method estimates the contact angle of liquids on solid surfaces, and the values give us surface wettability, adhesion, and the material’s hydrophobic or hydrophilicity property. It also accepts any type of solid, i.e., metals, coatings, composites, and polymers. The ASTM D7490 is utilized to...

Scope: Inorganic acids in the workplace can cause skin, eye, and respiratory tract irritations. There are exposure limits for hydrochloric acid, hydrobromic acid, and nitric acid in the air that have been established to limit the danger exposure to workers who may be affected. Analytical and sampling techniques are needed for exposure and volatile inorganic...

Scope: Under an imposed hydraulic gradient, the ASTM D7760 test method is used to evaluate one-dimensional vertical water flow through initially saturated TDAs (tire derived aggregates). TDAs are used in a variety of civil engineering applications that require hydraulic conductivity. TDAs are evaluated at a unit weight and in a controlled environment. Overburden pressure is...

Scope: The ASTM D7734/D7734M testing for printing inks is important as it is critical to know the stay open time when creating printing inks and overprint varnishes that dry predominantly by oxidation so that premature drying does not occur. Other components of a printing press include rollers and other components. Procedure: In ASTM D7734/D7734M, a...

Scope: In some extruded items, the amount of non-dispersible carbon black is crucial since it may affect the product’s surface appearance. The maximum amount of non-dispersible materials allowed, the smallest possible size, and the number of particles to be studied in each application between the user and the producer are determined in this ASTM D7724...

Introduction The ASTM D1062 is an international standard that evaluates the cleavage strength of adhesive bonds on metal specimens. It measures the resistance of adhesive bonds to cleavage under controlled conditions and expresses the results in SI units. Scope The ASTM D1062 test method determines the comparative cleavage properties of adhesive bonds and examines the...

Introduction to ASTM D2739 Volume Resistivity of Conductive Adhesives Testing The ASTM D2739 test method covers the determination of the volume resistivity of resin-based conductive adhesives in their cured condition. This applies to adhesive films or layers used in bonded assemblies, particularly where electrical conduction is required through the adhesive itself. This test provides information...

Scope: The ASTM D2918 standard test method is used to determine the durability of adhesive junctions in T-peel-type specimens. This test method can be utilized as an accelerated screening test for determining an adhesive joint’s durability. It can be used to assess the durability of adhesive joints exposed to the elements or to the circumstances...

Introduction to ASTM D1184 Flexural Strength of Adhesive-Bonded Laminated Assemblies ASTM D1184 is a laboratory test method specifically aimed at measuring the flexural strength of adhesive-bonded laminated assemblies, particularly plastic laminates. The test measures the ability of the adhesive bond to support bending stress and ensures that the structural integrity of the laminated product meets...

Scope: The ASTM D1002 is a standard test method for apparent shear strength of single-lap-joint adhesively bonded metal specimens by tension loading (Metal-to-Metal). This is largely a comparison test process. It can, however, be used as a discriminator to determine differences in adherend surface preparation conditions and adhesive environmental endurance. The test method has been...

Scope: The ASTM D2674 standard specifies three different test procedures: The sulfuric acid concentration of a sulfochromate solution is measured using Method A. The hexavalent and trivalent chromium concentration of a sulfochromate solution is measured using Method B. Method C is a substitute for determining the hexavalent and trivalent chromium concentration of a sulfochromate solution....

Introduction to ASTM D2557 Tensile-Shear Strength of Adhesives at Subzero Temperature The ASTM D2557 test method has been established to cover the determination of the tensile-shear strength of adhesive bonds under subzero conditions of temperature. This test applies to adhesives used in bonded assemblies whose performance can be significantly affected by exposure to extremely low...

Introduction The ASTM D2295 test method determines the strength properties of adhesives in shear by tension loading at elevated temperatures (metal-to-metal). It applies to the temperature range from 315 to 850°C (600 to 1500°F). That is especially relevant if adhesives are subjected to high temperatures in service and their integrity and bonding strength need to...

Scope: When tested on a standard specimen and exposed to a specific temperature and tensile stress in a spring-loaded testing apparatus, the ASTM D2294 test technique covers the assessment of the creep properties of adhesives for bonding metals. This test method is valuable for comparing adhesive creep properties in research and development, especially when those...

Introduction to ASTM D2293 Creep Properties of Adhesives in Shear by Compression Loading The test method, ASTM D2293, covers the determination of the creep characteristics of structural adhesives when exposed to shear stress under compression loading. The procedure examines a joint’s progressive deformation as time lapses under a steady load. This practice is applicable to...

Introduction to ASTM D2095 Tensile Strength of Adhesives Testing This test method is utilized for measuring the tensile strength of adhesives between bar and rod metal specimens. The test defines the maximum stress the adhesive can experience before failing when loaded by uniaxial tensile forces. It is used on a wide range of structural and...

ASTM D1876: T-Peel Test for Adhesive Peel Resistance

Introduction ASTM D1876 uses a T-peel test to measure the comparative peel properties of adhesive bonds between flexible adherents. The test is called a “T-peel” due to the shape the two flexible adherents form as they are pulled apart. Average peel strength for each specimen type and average, minimum, and maximum peeling loads for each...

Scope: ASTM D1781 is a standard test method for determining the adhesive bond peel resistance on items with a flexible adherend and a rigid adherend surface. By removing the sandwich assembly’s face, this standard can also be used to examine the structure and core of a sandwich. The purpose is to determine how much torque...

Scope: The ASTM D1304 is a standard test method for adhesives relative to their use as electrical insulation and cover procedures for testing adhesives in liquid, highly viscous, solid, or set states. As per the ASTM D1304 method, the electrically insulated adhesives have a wide range of applications due to their good adherence to a...

Scope: The nonvolatile content of aqueous adhesives such as dextrin, starch, casein, and animal gelatin is determined using the ASTM D1489 test technique. Tube winding, laminating, case and carton sealing, packing, bottle labeling, flat gumming, envelope sealing, and gummed tape manufacturing are just a few of the applications for aqueous adhesive non-volatile components. For adhesive...

Scope: The blocking point of potentially adhesive material is determined using the ASTM D1146 test procedure. Because some potentially adhesive compounds are both thermoplastic and hygroscopic, this test method allows for assessing both thermoplastic and hygroscopic blocking on the same material. Because certain criteria are more stringent than others, ASTM D1146 recognizes and defines two...

Scope: The ASTM D1084 test method is used to determine adhesive viscosity. The adhesive’s fluid flow is also taken into account in order to suit the machine’s requirements. Viscosity is significant during the coating step because uncured adhesives react differently when “ran” across a surface. Adhesive makers usually provide information about the viscosity and solid...

Scope: The ASTM D4883 test method employs a modern ultrasonic wave propagation-based technique for determining the density of polyethylenes. For the identification and characterization of polyethylene, density measurements are quite useful. It’s typically used as a way to track physical changes in a sample or as a measure of sample uniformity. It is a critical...

Introduction The ASTM D7191 test method quantitatively determines the water content in plastics down to 20 ppm. Moisture in plastics directly impacts the physical qualities and processability of various plastics. The warm-up of ASTM D7191 marked a considerable improvement in plastic material testing. Before this method, time-honored procedures for moisture resolution in plastics often involved...

Scope: The ASTM D6953 test method specifies a liquid chromatographic approach for separating various polyethylene additives currently in use. Isopropanol and cyclohexane used in this method have excellent extraction efficiencies. UV absorbance of the eluting solvent is measured and quantification is done using external calibration. BHT, BHEB, isonox 129, erucamide slip, irgafos 168, irganox 1076,...

Scope: This ASTM D6869 test technique is designed to determine moisture content in most polymers. To quantify the amount of moisture in a polymer sample, this approach employs the interaction of iodine (I2) with water (Karl Fischer Reaction). Plastics having volatile components, such as residual monomers and plasticizers, release substances that interfere with the I2/water...

Scope: The determination of methyl groups (that is, comonomer content) in polyethylenes using infrared spectrophotometry is covered by this ASTM D6645 test technique. This method determines the number of branches (comonomer content) in ethylene with 1-butene, 1-hexene, or 1-octene copolymers. Physical parameters like melting temperature, density, and stiffness, all of which are dependent on the...

Chiral HPLC chromatogram separating enantiomers of pharmaceutical compound

Scope: The ASTM D6474 standard procedure determines the molecular weight distribution and averages of polyethylene (excluding LDPE) and polypropylene resins. It can analyze polyethylenes (excluding LDPE) and polypropylenes that dissolve in 1,2,4 trichlorobenzene (TCB) at 140 °C.Variations in molecular weight and molecular weight distribution significantly influence the physical properties of these resins, such as morphology,...

Scope: The ASTM D6247 test technique involves X-ray fluorescence spectrometry determination of elemental content in polyolefins at concentration levels similar to those given by additives and reactor activities. Multielement concentrations in polyethylene or polypropylene materials, or both, can be determined using X-ray fluorescence spectrometry, which is an accurate and reasonably quick approach. It can also...

Scope: This ASTM D6042 test method describes a liquid chromatographic separation approach for various polypropylene compounds currently in use. UV absorbance is measured for the compound at 200 nm and quantification is done using this standard procedure. Stabilizers utilized in polypropylene manufacturing are isolated and characterized for identifying the performance qualities of the polymer composition....

Scope: The ASTM D5594 test method covers the determination of the vinyl acetate content of ethylene-vinyl acetate (EVA) copolymers by Fourier Transform Infrared Spectroscopy (FT-IR). This test method applies to the analysis of EVA copolymers containing 0.5 to 55% vinyl acetate. The amount of vinyl acetate included in EVA copolymers possesses an effect on its properties...

Scope: The ASTM D5508 test technique includes the detection of residual acrylonitrile monomer in styrene-acrylonitrile copolymer resins and nitrile-butadiene rubber by using headspace-capillary gas chromatography (HS-CGC). The residual acrylonitrile in nitrile rubbers (NBR), styrene-acrylonitrile (SAN) copolymers, and ABS resins can be measured to determine the polymers’ appropriateness for various uses. This ASTM D5508 test technique...

Scope: The ASTM D5296 test method uses high-performance size-exclusion chromatography to measure the molecular weight averages and molecular weight distribution of polystyrene. The ASTM D5296 test method is appropriate for samples having molecular weight components with elution volumes within the polystyrene standards’ elution volume range (that is, molecular weights generally from 2000 to 2 000...

Purity is paramount in chemical production. One key player in ensuring this purity is ASTM D5507. This standard test method detects traces of organic impurities in monomer-grade vinyl chloride. These impurities, though minute, can significantly impact the quality and safety of the final product. Hence, their detection and control are crucial in industries that rely...

Scope: The ASTM D5227 test method measures the hexane extractable content of polyolefins. This test method can be used to figure out how much hexane-soluble low molecular weight material is in polyolefins. This approach for assessing polyolefin hexane extractables was modified by the Food and Drug Administration (FDA). The ASTM D5227 test method is suitable...

Introduction The ASTM D5225 test focuses on the solution viscosity measurement of a polymer using either an ordinary or differential viscometer. This test can be applied to any polymer that dissolves in a solvent without the involvement of any chemical changes or decomposition, resulting in a stable solution. The viscosity data accompanying this determination is...

Scope: The molar composition of copolymers made from ethylene (ethene) and a second alkene-1 monomer is determined using the ASTM D5017 test technique. Propene, butene-1, hexene-1, octene-1, and 4-methyl pentene-1 are examples of the second monomer. This test method’s calculations are valid for products with the units EEXEE, EXEXE, EXXE, EXXXE, and, of course, EEE,...

Scope: This ASTM D4754 test protocol explains how to use the FDA migration cell in component extraction and how to extract liquids, such as food-stimulating solvents and liquid foods, to allow for individual migrant quantification from plastic materials. This test approach has also been used on a range of migrant/polymer systems that have come into...

Scope: ASTM A1108 is necessary to determine the ultimate strength in compression of bolted longitudinal seams with lapped connections in deep corrugated structural plates. This test method is used to establish the maximum power of bolted structural plate longitudinal seams for design. Test Procedure: The ASTM A1108 test method prepares representative seamed specimens, tests them...

Introduction ASTM D950 gives a proper framework for testing by ensuring that comparability and quality control are achieved in different adhesive formulations and bonded assemblies. This test technique, which typically uses an impact tester of the pendulum type, is frequently used to ascertain the energy needed to break adhesive connections between two materials. Standardized by...

Introduction The test method ASTM D903 covers the bonding strength of adhesives. It applies to standard-sized specimens of adhesive bonds under specifications of pre-treatment, temperature, and testing machine speed that determine their peel or stripping qualities. The primary purpose of carrying out the ASTM D903 test is research and development in the bond strength of...

Scope: Standard method ASTM D6325 describes the procedure to determine the open assembly time for a trowelled carpet adhesive. It is important that sufficient assembly time should be available to an installer to prepare and place the carpet sections for bonding onto the substrate. An adhesive with too short an open assembly time will not...

Scope: Standard method ASTM D6004 describes the test to measure the shear strength of adhesives used to bond resilient flooring and carpets to specific substrates (e.g carpet underlayments). It provides a quantitative basis for measuring and recording the shear strength of various adhesive and underlayment combinations. Shear loading is the most common cause of failure...

Introduction The mechanical properties of the adhesives are crucial to determine whether the wooden structure will have strength and durability and whether it can perform or not. Tensile, shear strength and elasticity determine the adhesive’s ability to transfer loads and maintain the structural configuration under different conditions. Construction and engineering activities mean exposing the adhesive’s...

Scope: The ASTM D5215 test evaluates the degree of staining caused by adhesives on vinyl flooring, using instrumental techniques. Vinyl flooring consists of a PVC or urethane wear layer laminated to a vinyl backing layer. Adhesives may contain additives such as anti-oxidants or processing oils which seep up through the backing and interact with UV...

Scope: The ASTM D4502 method describes the test to estimate the resistance of adhesive-bonded joints to degradation induced by high temperature and moisture. The degradation rate of adhesives depends on temperature, moisture, chemicals present, and stresses on the joint. The test is meant primarily for wood to wood joints, but can also be used for...

Introduction to ASTM D4027 Shear Properties of Structural Adhesives by Modified Rail Test The test method, ASTM D4027, covers the evaluation of shear properties for structural adhesives using a modified rail test configuration. The testing in this method yields an accurate measure of the adhesive’s ability to withstand shear stress when bonding rigid adherends such...

Introduction The ASTM D3983 standard test method for adhesive strength and shear modulus of bonded assemblies by tension testing with thickness controls helps determine the bond strength of structural adhesive bonds when the adherents are pretty thick. In the test, tensile force is applied to the adhesive joint, and its tensile stress behavior is monitored....

Introduction The ASTM D3931 standard method tests the shear strength of gap-filling adhesives in wood-to-wood joints under compressive loading. This test supports structural design, quality control, and comparative purposes. Manufacturers create adhesives from either natural or synthetic sources. Solid adhesives are becoming popular in electronics, construction, and aerospace applications. Adhesives’ principal function is to connect...

Introduction The ASTM D3632 test method compares the resistance of various adhesive films and adhesive joints to degradation in a high-pressure oxygen environment. This oxygen-pressure test is helpful for quality control, screening, research, and development of adhesives for field applications. Scope ASTM D3632 describes the test to compare adhesive films’ and joints’ relative abilities to...

Scope: ASTM D1995 covers a set of standard test methods for multi-modal strength testing of autohesives (contact adhesives). Autohesive refers to an adhesive that possesses the property of autohesion, which is the formation of a spontaneous adhesive bond, due to molecular interdiffusion when two surfaces are pressed together. This principle finds commercial application in contact...

Introduction: ASTM D5868 lap shear adhesion test is a widely available standard test method for adhesive bonding strength with FRPs.The lap shear strength is the ability of the adhesive to resist shear forces that apply to the adhesive joint when about two overlapping portions of FRPs. Researchers test the joint by applying force to the...

Introduction The standard ASTM D5041 describes the fracture strength testing of flat adhesively bonded reinforced plastic specimens. It involves imposing controlled cleavage stresses to split apart the specimen using a movable wedge. The ASTM D5041 adhesive shear strength is expressed in megapascals or gigapascals. Scope The standard ASTM D5041 describes the fracture strength testing of...

Scope: ASTM D4501 specifies a standard test procedure and fixture for the characterization of block-shear strength for adhesives. Rigid adherend blocks, plates, or disks are bonded together using adhesive and the shear force needed to break the bond is measured. The ASTM D4501 test is applicable when the shear moduli of the adherends exceed the...

Introduction The ASTM D3164 standard method determines the shear strength properties of adhesively bonded plastic lap-shear sandwich joints. During the test, the tension forces applied from opposite ends fail the joint when its shear limit is reached. The test yields a quantifiable measure of the adhesive’s strength, with the shear strength of the resulting joint...

Scope: The standard ASTM D5649 describes the test method to determine the securing or locking effect of adhesives that are applied onto threaded fasteners. It can also assess the degree of cure and the effect of the environment on the torque strength. Thread locking and sealing adhesives are applied on the threads of fasteners, to...

Ever wonder how strong the glue is holding those plastic parts together? The ASTM D3163 test is like a tug-of-war test specifically designed for glued-together rigid plastics. It helps engineers like us understand how well the adhesive holds up against forces trying to pull the bonded pieces apart sideways (imagine sliding them in opposite directions)....

Scope: The standard ASTM D5648 describes the test method to determine the torque-tension relationship of adhesives that are applied onto threaded fasteners, for locking and sealing. When a threaded fastener such as a nut and bolt or screw is tightened onto a load, clamping forces on the load increases. The reaction from the clamped load...

Compact tension fatigue crack growth specimen with crack mouth gauge attached for ASTM E647 test

Scope: The shear strength of an adhesive characterizes its resistance to sliding forces that induce failure of the adhesive bond between adherend materials. The shear strength of an adhesive bond depends on the adherend materials, the adhesive, preparation of surfaces, degree of cure and environmental conditions. The test method ASTM D4562 is applicable to measurement...

Scope: ASTM D4670 test method is important to determine the amount of insoluble content in polyols. It defines a standard to control the quality and application of these polyols. It characterizes the polyols found in polyurethane products and is applicable for research purposes. It uses visual inspection to determine the suspended matter in polyols which...

Introduction The ASTM D4669 test method determines the specific gravity of polyols using a density meter and pycnometer. However, it can also be applied to calculate the specific gravity of many other liquids. The units of specific gravity are in the SI system. Scope The ASTM D4669 test method is essential to determine the specific...

Scope: The ASTM D4663 test method is important to determine the hydrolyzable chlorine content in isocyanates, how it is formed, and how its constituents react with alcohol and water to produce urea, carbonates, carbon dioxide, and hydrochloric acid. This test method is important to get accurate readings at different sample concentrations. It defines a standard...

Scope: The ASTM D4662 test method is important to determine the acid and alkaline number of polyols with the help of titration. This test method is important to get accurate readings at different sample concentrations. It defines a standard to control the quality and measure uniformity of these polyols. It characterizes the polyols found in...

Introduction ASTM D4661 test method provides information about polyurethane raw materials by measuring the chlorine content of aromatic isocyanates. The amount of o-dichlorobenzene and other ringed chlorine products is determined by calculating the difference between the total chlorine content and the hydrolyzable chlorine content. Measure the final results in SI units. Scope The ASTM D4661...