ASTM D75/D75M-19 rus PDF

Full title and description

ASTM D75/D75M-19 — Standard Practice for Sampling Aggregates. This practice gives procedures for obtaining representative samples of coarse and fine aggregates from sources such as stockpiles, conveyor belts, flowing streams, transportation units, and roadway installations. (rus: указание на доступную или запрашиваемую русскоязычную версию / перевод.)

Abstract

Defines accepted procedures and precautions for selecting, extracting, and reducing aggregate samples so that laboratory test results reflect the true character of the material. The practice addresses sampling intent (exploration, production control, site control, acceptance), recommended sampling locations and methods, sample reduction, and responsibilities of the sampler. It emphasizes operator competence, proper equipment, and recordkeeping to preserve sample representativeness.

General information

• Status: Current (active standard).
• Publication date: November 1, 2019.
• Publisher: ASTM International (formerly American Society for Testing and Materials).
• ICS / categories: 91.100.30 — Concrete and concrete products.
• Edition / version: D75/D75M-19 (replaces D75/D75M-14).
• Number of pages: 7 pages.

Scope

This practice covers sampling of coarse and fine aggregates for preliminary investigation of potential sources, control of the product at the source, control of operations at the site of use, and acceptance or rejection of materials. Values in SI and inch‑pound units are stated as separate, independent systems. Notes and footnotes provide guidance but are not mandatory requirements of the practice.

Key topics and requirements

• Purposes of sampling: source exploration, production control, site control, acceptance/rejection.
• Sampling locations and methods: flowing streams (bins, belts), conveyor belts, stockpiles, transport units, roadway surfaces.
• Techniques for obtaining increments and composite samples, and for reducing large samples to laboratory size (splitters, quartering, mechanical sample dividers).
• Recommended minimum sample sizes and handling to avoid contamination or segregation.
• Requirements for documentation, labeling, and chain of custody to maintain traceability.
• Emphasis on qualified personnel, calibrated equipment, and safety considerations during sampling.

Typical use and users

Used by materials testing laboratories, state and municipal transportation agencies, contractors, quarry and pit operators, quality‑control/quality‑assurance personnel, civil and geotechnical engineers, and consulting firms for routine and acceptance sampling of aggregates destined for concrete, asphalt, and other construction uses.

Related standards

Frequently used alongside other ASTM standards for aggregate testing and sample preparation (examples include standards for sample reduction and test methods such as sieve analysis, specific gravity, moisture content), and it is referenced by multiple ASTM and AASHTO documents dealing with aggregate quality and testing procedures.

Keywords

aggregates; sampling; coarse aggregate; fine aggregate; stockpile sampling; conveyor sampling; sample reduction; lot acceptance; quality control; sample handling; chain of custody.

FAQ

Q: What is this standard?

A: ASTM D75/D75M-19 is a Standard Practice that specifies procedures for taking representative samples of coarse and fine aggregates for investigation, production control, site control, and acceptance testing.

Q: What does it cover?

A: It covers where and how to obtain incremental and composite samples (stockpiles, belts, trucks, roadways), methods for reducing samples to testing size, handling and labeling, minimum sample sizes, and guidance on personnel competence and equipment calibration.

Q: Who typically uses it?

A: Materials laboratories, DOTs, contractors, aggregate producers, engineers, inspectors, and consultants who need reliable, representative aggregate samples for testing and acceptance decisions.

Q: Is it current or superseded?

A: The D75/D75M-19 edition (published November 1, 2019) is the current edition and replaces the 2014 version (D75/D75M-14).

Q: Is it part of a series?

A: It is a standalone practice within ASTM’s aggregate and materials standards but is commonly cross‑referenced by related test methods and practices (sample reduction, sieve analysis, specific gravity, and other aggregate test standards) and by AASHTO references for sampling procedures.

Q: What are the key keywords?

A: Aggregates, sampling, stockpile sampling, conveyor sampling, sample reduction, lot acceptance, quality control, representative sample.