📋 Scope and Summary This test method, designated as ASTM D2245-90 (Reapproved 2011), provides a procedure for identifying oils and oil acids present in the vehicle of solvent-reducible paints. It is based on gas chromatographic analysis of methyl esters derived…

The ASTM D2241-24 standard specifies requirements for poly(vinyl chloride) (PVC) pressure-rated pipe in the standard dimension ratio (SDR) series. It provides a comprehensive framework for materials, dimensions, and performance testing to ensure reliable service in pressurized water systems. 📜 Specification…

🧪 Scope and Significance of Freeze-Thaw Testing ASTM D2243-20, under the jurisdiction of Subcommittee D01.42 on Architectural Coatings, establishes a standardized procedure for evaluating the durability of water-borne coatings when subjected to repeated freeze-thaw cycling. As outlined in Section 1.1,…

📐 Classification and Types This standard specifies four types of smooth-surfaced asphalt roll roofing based on minimum net mass per unit area. The roofing is manufactured from organic felt saturated with asphalt and coated on both sides with an asphaltic…

ASTM D2240 is the standard method for measuring the indentation hardness of rubber, thermoplastic elastomers, cellular materials, gel-like materials, and certain plastics using durometer instruments. The standard defines twelve durometer types—A, B, C, D, DO, E, M, O, OO, OOO,…

📐 Scope and Specimen Types ASTM D2238-22 outlines standard test methods for measuring the absorbance of polyethylene due to methyl groups at the 1378 cm⁻¹ (7.25 µm) band using infrared absorption spectrophotometry. These methods are applicable to the three main…

ASTM D2239-22 establishes the comprehensive requirements for polyethylene (PE) plastic pipe manufactured with a standard inside dimension ratio (SIDR) and a designated pressure rating (PR) for water service. Controlled inside diameter (CID) pipe ensures consistent flow characteristics and hydraulic performance,…

📋 Scope and Overview Data obtained from coal samples are used in establishing price, controlling mine and cleaning plant operations, allocating production costs, and determining plant or component efficiency. This practice, D2234/D2234M, covers procedures for the collection of a gross…

📜 Scope and Application of D2235-22 ASTM D2235-22, the Standard Specification for Solvent Cement for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe and Fittings, establishes the engineering and performance requirements for solvent cements used in joining ABS piping systems. As outlined in Section…

ASTM D2230-17 (Reapproved 2022) provides a standardized procedure for evaluating the extrudability of unvulcanized rubber compounds, specifically SBR and NBR. The test method employs a screw-type extruder with a specialized Garvey-type die to produce an extrusion with distinct geometric features,…

ASTM D2232-23, formally designated as the Standard Test Method for Evaporating Residue of Naphthalene, establishes a precise protocol for quantifying nonvolatile impurities in naphthalene samples. This method is under the jurisdiction of ASTM Committee D16 and is directly applicable to…

ASTM D2233-86 (Reapproved 1997) defines the standard specification for synthetic nonflammable electrical insulating liquids of the chlorinated aromatic hydrocarbon type, known as askarels. These fluids are specifically formulated for use as an electrical insulating and cooling medium in capacitors. This…

⚙️ Test Procedure and Abrasion Mechanism ASTM D2228 specifies a cutting knife abrasion method using a unique Pico Abrader apparatus. A pair of tungsten carbide knives of precise geometry are lowered onto a rotating circular test specimen under a controlled…

📐 Specimen Geometry and Types ASTM D2229-24 specifically standardizes a test specimen consisting of a steel cord vulcanized directly into a block of rubber. The core procedure covers the determination of the force required to pull a steel cord from…

ASTM D2226 −93 (Reapproved 2022), “Standard Classification for Various Types of Petroleum Oils for Rubber Compounding Use,” establishes a comprehensive system for categorizing petroleum oils specifically intended for extending and processing styrene-butadiene rubbers (SBR) and butadiene rubbers (BR). It is…

📐 Scope and Classification of NR Technical Grades This specification, designated ASTM D2227 – 96 (Reapproved 2020), establishes the minimum physical and chemical quality requirements for five distinct grades of raw natural rubber (NR). The standard classifies NR into Grades…

📐 Scope and Summary of Test Method D2222-19 ASTM D2222-19 covers the determination of the methanol extract, or nonvolatile methanol-soluble portion, of vinyl chloride resins. This test method provides a quantitative measure of the methanol-soluble, nonpolymeric content of the virgin…