ASTM C1355/C1355M PDF | Request Standard

ASTM C1355/C1355M

Standard Specification for Glass Fiber Reinforced Gypsum Composites

Standard by ASTM, 2025-04-25

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About This Item

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ASTM C1355/C1355M is the ASTM standard specification for glass fiber reinforced gypsum composites, providing a clear technical reference for evaluating this composite material. It helps define the expected framework for product consistency, material quality, and specification compliance, which is important for buyers, manufacturers, and specifiers working with gypsum-based composite products. By identifying the standard requirements for this material category, ASTM C1355/C1355M supports more reliable procurement and product comparison.

ASTM C1355/C1355M standard overview

This ASTM standard focuses on glass fiber reinforced gypsum composites and establishes a specification-oriented basis for describing and assessing the material. As a technical document, it is generally used to support consistent expectations for composition and product performance in a controlled, repeatable way. ASTM C1355/C1355M is most useful when a project, contract, or internal specification needs a recognized reference for this type of composite, helping align material selection, acceptance criteria, and quality control with an established standard.

Where is ASTM C1355/C1355M used?

ASTM C1355/C1355M is commonly used in purchasing, product specification, and quality assurance workflows involving glass fiber reinforced gypsum composites. It is relevant wherever these gypsum-based composite products are selected, compared, or verified against a recognized ASTM standard. This may include manufacturers, distributors, specifiers, and testing teams that need a consistent technical basis for documentation and evaluation. The standard is especially useful when a project requires clear product definitions and a reliable reference for compliance-oriented communication.

Practical importance of ASTM C1355/C1355M

The practical value of ASTM C1355/C1355M is its role in reducing ambiguity around material expectations for glass fiber reinforced gypsum composites. It supports more consistent procurement decisions, helps teams compare products on a like-for-like basis, and provides a common reference for specification and acceptance. For organizations involved in testing or quality control, the standard can improve documentation and help limit risk tied to unclear requirements. In this way, ASTM C1355/C1355M contributes to more predictable material selection and compliance processes.

  • Specification for glass fiber reinforced gypsum composites
  • Material consistency and product comparison
  • Compliance and acceptance reference
  • Quality control and procurement support
SKU: c96370dcde2e

  • Publication Date: 2025-04-25
  • Publisher: ASTM

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