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ASTM D1784-20
Standard Classification System and Basis for Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds
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STANDARD published on 15.1.2020
The information about the standard:
Designation standards: ASTM D1784-20
Publication date standards: 15.1.2020
SKU: NS-987529
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM D1784-20 :
This specification covers rigid poly(vinyl chloride) (PVC) compounds and chlorinated poly(vinyl chloride) (CPVC) compounds for use in extruded or molded form like pipe and fitting applications. Classification requirements for identifying rigid PVC and CPVC shall be according to base resin, impact resistance under notch, tensile strength, modulus of elasticity in tension, deflection temperature under load, and flammability. PVC and CPVC shall be in the form of cubes, granules, free-flowing powder blends, or compacted powder blends, and shall be of uniform size and free of foreign matter. The material shall conform to the test requirements such as tensile strength and modulus of elasticity, conditioning, impact resistance, deflection temperature, and flammability.
Keywords:
chlorinated poly(vinyl chloride) (CPVC), CPVC compounds, poly(vinyl chloride) (PVC), PVC compounds, recycle plastics, rigid PVC,, ICS Number Code 83.080.20 (Thermoplastic materials)
Additional information
| 1. Scope | ||||||||||||||||||||||||
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1.1 This classification system standard covers rigid PVC and CPVC compounds intended for general purpose use in extruded or molded form—including fittings and both pressure and nonpressure piping applications—composed of poly(vinyl chloride), chlorinated poly(vinyl chloride), or vinyl chloride copolymers containing at least 80 % vinyl chloride, and the necessary compounding ingredients. The compounding ingredients shall be permitted to consist of lubricants, stabilizers, non-poly(vinyl chloride) resin modifiers, pigments, and inorganic fillers. Note 1: Selection of specific compounds for particular end
uses or applications requires consideration of other
characteristics such as thermal properties, optical properties,
weather resistance, etc. Specific requirements and test methods for
these properties should be by mutual agreement between the
purchaser and the seller.
Note 2: Selection of compounds for pressure piping
applications requires consideration of material stress ratings that
are required for determining pressure ratings, but are not
addressed in this specification. Requirements for long-term
material stress ratings in accordance with recognized stress rating
standards, such as HDB in accordance with Test Method D2837 for pressure piping, should be
included in specifications for pressure piping products or
systems.
Note 3: The list of compounding ingredients in 1.1 is not meant to be an exhaustive list
of allowable compound ingredients. In addition to the compounding
ingredients listed, others may also be used. The list of
compounding ingredients in 1.1 does not imply that every ingredient
listed is a required ingredient. Some compounds may not contain all
the ingredients listed in 1.1.
1.2 For applications involving special chemical resistance see Classification D5260. 1.3 The requirements in this classification system standard are intended for the quality control of compounds used to manufacture finished products. These properties are based on data obtained using standard test specimens tested under specified conditions. They are not directly applicable to finished products. See the applicable ASTM standards for requirements for finished products. 1.4 The text of this classification system standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this specification. 1.5 Some rigid PVC applications have the option to contain recycled PVC plastics that meet the requirements of this classification system standard. Refer to the specific requirements in the materials and manufacture section of the applicable product standard. 1.6 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.7 The following safety hazards caveat pertains only to the test methods portion, Section 11, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. Note 4: This specification is similar in content (but not
technically equivalent) to ISO 1163-1:1985 and ISO
1163-2:1980.
1.8 This 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. |
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