ASTM C35 is the ASTM standard that defines the Standard Specification for Inorganic Aggregates for Use in Gypsum Plaster. It provides a technical basis for identifying and evaluating aggregate materials intended for gypsum plaster applications, helping users align material selection with a recognized specification. For procurement, quality control, and product evaluation, this standard matters because it supports more consistent material expectations and clearer compliance decisions.

Overview of ASTM C35

The purpose of ASTM C35 is to establish a specification framework for inorganic aggregates used in gypsum plaster. As an ASTM standard, it gives manufacturers, buyers, and specifiers a common reference for describing acceptable aggregate materials in this application. The document is most useful when a project or product requires a defined material basis for gypsum plaster formulation, review, or acceptance. ASTM C35 helps reduce uncertainty by setting a recognized technical benchmark for the aggregate component.

Common use cases of ASTM C35

ASTM C35 is commonly used when inorganic aggregates are selected, specified, or verified for gypsum plaster products. It may support purchasing specifications, material qualification, and incoming inspection where gypsum plaster performance depends on consistent aggregate properties. The standard is also relevant to manufacturers and laboratories involved in product development, routine quality checks, or compliance review. In practice, it serves as a reference point for coordinating material expectations across suppliers and project requirements.

Benefits of using ASTM C35

Using ASTM C35 can improve consistency in material specification and reduce ambiguity in gypsum plaster aggregate selection. It provides a recognized basis for compliance discussions, product comparison, and quality control decisions. For organizations handling procurement or testing, the standard can help streamline evaluation and support more reliable acceptance criteria. ASTM C35 also assists in reducing risk by aligning material choices with an established technical specification rather than informal descriptions alone.

• Specification for inorganic aggregates
• Gypsum plaster application focus
• Useful for procurement and QC
• Supports material evaluation and compliance