Approved by: RTI Project Manager: “Signed by Karin K. Foarde on January 31, 2007” Karin K. Foarde RTI Quality Assurance Manager: “Signed by W. Cary Eaton on January 31, 2007” For example, for wood materials, screws should be ⅝” long and 3⁄4” for nails. CAT scan showing the face of a glass mat gypsum board, traveling into the face of the board showing the coated glass mat followed by the gypsum core. 1. As for penetration of screws and nails, it varies depending on the type of material being nailed or screwed. The following procedure is given by Richards (1954):i. dissolve soil gypsum in a 1:5 soil - water ratio by shaking. These notes outline a procedure for making fertiliser, lime and gypsum recommendations based on the results of soil testing. C473-17 Standard Test Methods for Physical Testing of Gypsum Panel Products. These test methods cover the physical testing of gypsum panel products. View Only: Prior Editions of Code-Referenced Documents, 2015 Study on Respirable Crystalline Silica. A non-load bearing wall consisting of gypsum panels attached to steel studs was constructed for fire testing. NTA offers a single-source solution for all of your needs related to gypsum wallboard testing, inspection, certification, evaluation, and follow-up services. 1.2 The … C472-99(2014) Standard Test Methods for Physical Testing of Gypsum, Gypsum Plasters and Gypsum Concrete. Steps to test gypsum purity: 1. Clay soils that disperse strongly, particularly after only 2 hours, usually respond to gypsum application. The soil testing method used by all commercial and University soil testing laboratories picks up the calcium that is held on the soil, as well as the calcium that is dissolved in the soil solution as soluble salts. The test is popular due to the simplicity of … The test methods appear in the following order: (1) flexural strength (Method A); (2) core, end, and edge hardness (Method A); (3) nail pull resistance (Method A); (4) humidified deflection; (5) end squareness; (6) nominal thickness; (7) recessed- or tapered-edge depth; (8) width; (9) length; (10) water resistance of core-treated water repellant gypsum panel products; and (11) surface water-resistance of gypsum … 1.1 These test methods cover the physical testing of gypsum, gypsum plasters, and gypsum concrete. Price: $52.00 Want this as a site license? Another recommended procedure involves certified reference materials (CRMs) with known and stabile parameters that can be investigated by the participants . Receive your complimentary electronic issue by signing up, below. Wet bond, dry bond and drying properties can be evaluated using our lab scale gypsum board making process. © 2021 Gypsum Association. precipitate gypsum from the soil extract by adding acetone. Third Party Product Evaluation and Certification. This specification covers sampling; inspection; rejection; certification; packaging and marking; and shipping, handling, and storage of gypsum panel products. Test topsoils and subsoils separately. At least 0.25 % of the number of gypsum panel products in a shipment, but not less than three gypsum panel products, shall be so selected as to be representative of the shipment and shall constitute a sample for the purpose of tests by the purchaser or user. Repeat the test using this solution. 14.3 Procedure - Boil about 1 g of the prepared sample, accurately weighed, with 10 ml of water. measure the electrical conductivity of the solution Since it is possible to quantify the water content per gram, measuring the purity of the gypsum is an easy task. The proper management of irrigation requires an accurate measuring of soil moisture. 6.21.1 procedure for the determination of phenolphthalein alkalinity 239 6.21.2 procedure for the determination of total alakinity 240 6.22 determination of hardness in water samples 240 6.23 analysis of hexavalent chromium in drinking water, waste water by colourimetric method … Mix vigorously (about 150 complete circular strokes per determine the compressive strength of gypsum plaster and minute) for 1 min with a metal spoon, stiff-bladed spatula or gypsum concrete and is used … When specified by the purchase agreement, samples of gypsum panel products shall be taken at the place of manufacture or at the destination. For most rocks, this is a simple task of weighing the rock's mass before and after oven-heating at a specified temperature and duration. by the North American Fire Testing Laboratories (NAFTL) consortium. Determine CaO and then divide by 1.4 to get Ca, 3. For use in these test methods, a sample shall consist of gypsum panel products. Tests for composition of risk may include evaluations of radioactivity, respirable silica, asbestos contamination, S8 elemental sulfur ("chinese drywall" issue), VOCs, mercury, lead or other toxic compounds. iii. All Rights Reserved. The concrete slump test is used for the measurement of a property of fresh concrete. Moreover, in-test analysis is not p… Mold-Resistant Gypsum Board Testing Page i Test/QA Plan for Mold-Resistant Gypsum Board Testing Prepared by: Research Triangle Institute Research Triangle Park, NC . The tested materials should consist of a noncombustible water-resistant gypsum core, completely embedded in the core or partially surfaced with glass mat. Gypsum/steel-stud wall assemblies, nominally rated at 1-h, were tested by six different organizations employing nine different furnace facilities following the guidance provided in ASTM E119-00. The passive fire resistance provided by fire-resistant rated gypsum based assemblies for walls, ceilings, floors, and other building systems, slows or prevents the spread of fire, allows time for evacuation, and limits fire damage. ii. If the solution is to be analyzed for its chemical constituents, the saturated paste should stand for 12 hours or more (over night). The test is an empirical test that measures the workability of fresh concrete. Passive fire protection measures are intended to contain a fire and the spread of fire and smoke for a limited period of time, as determined by the local building code and fire code. Each of the three tests is discussed … PARAMETERS: TEST METHODS: MgO SiO2 Al2O3 Fe2O3 SO3 H2O Combined water CaSo42H2O (Purity) ASTM C 471 M ASTM C 471 M ASTM C 471 M ASTM C 471 M ASTM C 471 M ASTM C 471 M ASTM C 471 M ASTM C 471 M Search for: Recent Posts. 25 of 1946), hereby order as follows : 1. The program was completed successfully and forms the basis for future proficiency Application Note GypsumTo monitor the performance of the FGD process a sample is taken from the vacuum belt filters where the freshly produced FGD gypsum is washed and dewatered. Scope. Res. Therefore it' gypsum is present allow the saturated paste to stand several hours (4-6 hours) before extracting the solution. The most recommended procedure is a bilateral comparison in which expert judgements or criteria based on fitness for the desired purpose are applied. Figure 1 displays a detailed drawing of the assembly construction. In America, the ASTm (American Society for Testing and materials) regulates gypsum and related building materials and systems through Technical Committee C11. c. Multiply by 1.25 to … The objective of this article is to alert golf I, DANIEL MORRISSEY, Minister for Industry and Commerce, in exercise of the power conferred on me by subsection (3) of section 20 of the Industrial Research and Standards Act, 1946 (No. Moisture affects the strength of gypsum and is therefore commonly measured when testing rock strength. If necessary crush and reduce the entire dried sample in accordance with 4.1.3 and 4.1.5. 2. Gypsumation provides essential gypsum board information to A/E/C professionals, contractors, and code officials twice annually. PURPOSE: To ensure that the Gypsum Board Suspended Ceiling and related activities are executed safely and in accordance with the contract requirements and that all quality assurance / control activities are conducted in a systematic manner.To ensure that works are inspected, conformance is verified and documented. This specification covers gypsum boards which include the following: gypsum wallboard for use on walls, ceilings, or partitions and that affords a surface suitable to receive decoration; pre decorated gypsum board for use as the finished surfacing for walls, ceilings, or partitions; gypsum backing board, coreboard, and shaftliner board for use as a base in multilayer systems or as a gypsum stud or core in semisolid or solid gypsum board partitions, or in shaft wall assemblies; water-resistant gypsum backing board to be used as a base for the application of ceramic or plastic tile on walls or ceilings; exterior gypsum soffit board for exterior soffits and carport ceilings that are completely protected from contact with liquid water; gypsum sheathing board for use as sheathing on buildings; gypsum base for veneer plaster; gypsum lath for use as a base for gypsum plaster application; and gypsum ceiling board for interior ceilings and walls. Sorry, we were unable to sign you up for Gypsumation at this time. Determine SO3 and then divide by 0.8333 to get SO4, 2. The requirements specified will also focus on dimensional requirements such as width, length, end squareness, thickness, and edges. Compressive Strength 12.3.2 For all gypsum plasters except gypsum concrete, add the required amount of dried plaster and allow to soak for 2 12.1 Significance and Use—This test method is used to min. These test methods cover the physical testing of gypsum, gypsum plasters, and gypsum concrete. 4.2 Gypsum (C 22/C 22M)—Gypsum samples will be re-ceived in the form of rocks, powder or both. iv. Please submit the following form. One millilitre of the solution contains O-5 mg of sodium chloride. STANDARD SPECIFICATION (GYPSUM PLASTERS) ORDER, 1950. S.I. NTA conducts the following tests on gypsum wallboard according to several different methods, including but not limited to: ASTM C473-19, Standard Test Methods for Physical Testing of Gypsum Panel Products, ASTM International, West Conshohocken, PA, 2019, www.astm.org, ASTM C1177 / C1177M-17, Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing, ASTM International, West Conshohocken, PA, 2017, www.astm.org, ASTM C1264-19, Standard Specification for Sampling, Inspection, Rejection, Certification, Packaging, Marking, Shipping, Handling, and Storage of Gypsum Panel Products, ASTM International, West Conshohocken, PA, 2019, www.astm.org, ASTM C1396 / C1396M-17, Standard Specification for Gypsum Board, ASTM International, West Conshohocken, PA, 2017, www.astm.org. Gypsum Testing Parameters and Test Methods. This is a short-term effect, which occurs as the gypsum dissolves; The calcium in the gypsum replaces sodium attached to clay minerals. ICC NTA will sample and test to determine whether the material conforms to the standard. If you grow turf on calcar-eous soils (those containing calcium carbonate) or gypsum, it is possible, and even likely, that you should con-sider changing soil testing procedures. After checking that % SO4 x 40/96 = % Ca then: a. The following are some key ASTm standard chapters relating to gypsum products: C11.01 Specifications and Test methods for Gypsum … More specifically, it measures concrete consistency between batches. We can test both natural rock and byproduct gypsum using chemical mineral analysis to determine the gypsum quality and what impurities are present. NTA provides code compliance testing for the certification of gypsum wallboard. The remaining gypsum stays in the soil solution as dissolved calcium sulfate salt. For example, a type G screw should be used for attaching gypsum to gypsum and type W screws are for gypsum to wood framing. This specification covers gypsum boards which include the following: gypsum wallboard for use on walls, ceilings, or partitions and that affords a surface suitable to receive decoration; pre decorated gypsum board for use as the finished surfacing for walls, ceilings, or partitions; gypsum backing board, coreboard, and shaftliner board for use as a base in multilayer systems or as a gypsum stud or core in semisolid or solid gypsum board partitions, or in shaft wall assemblies; water-resistant gypsum backing board to be used as a base for the application of ceramic or plastic tile on walls or ceilings; exterior gypsum soffit board for exterior soffits and carport ceilings that are completely protected from contact with liquid water; gypsum sheathing board for use as sheathing on buildings; gypsum base for veneer plaster; gypsum lath for use as a base for gypsum plaster application; and gypsum ceiling board for interior ceilings and walls. 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