ISO 3551-2-1992 PDF

Full title and description

Rotary core diamond drilling equipment — System A — Part 2: Inch units. International standard that defines nomenclature, leading dimensions and characteristics to ensure interchangeability of System A rotary core diamond drilling components when specified in inch units.

Abstract

This part of ISO 3551 establishes the nomenclature and specifies the principal dimensions and requirements for interchangeability, in inch units, of rotary core diamond drilling equipment within System A. It covers drill rods and couplings; casings, casing couplings, casing bits and shoes; drive shoes and casing ream shells; core barrels, core bits, core lifters and reaming shells. Dimensional ranges specified accommodate hole diameters approximately from 1.18 in to 7.88 in and core diameters from about 0.73 in to 6.5 in.

General information

• Status: Published — International Standard (confirmed).
• Publication date: July 1992 (1992‑07).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 73.100.30 — Equipment for drilling and mine excavation.
• Edition / version: Edition 1 (1992).
• Number of pages: 79.

Scope

Specifies nomenclature, principal dimensions and characteristics required to achieve mechanical interchangeability of System A rotary core diamond drilling components when expressed in inch units. The standard applies to drill rods and couplings; casings and casing components; core barrels and related core recovery assemblies; core bits and bit accessories; and other fittings specifically referenced to System A dimensions and limits. It is intended for equipment and component sizes that produce hole diameters roughly 1.18 in to 7.88 in and core diameters roughly 0.73 in to 6.5 in.

Key topics and requirements

• Standardized nomenclature and identification of System A components (rod, coupling, casing, core barrel, bit, lifter, etc.).
• Principal and leading dimensions in inch units to ensure interchangeability between manufacturers.
• Dimensional tolerances and fit relationships for threaded and mating components.
• Specification of characteristic sizes and ranges for hole and core diameters in inch units.
• Basic material and construction notes required for functional compatibility (where applicable).
• Reference to System A interchangeability limits and compatibility with other parts of the ISO 3551 series (metric/inch counterparts).

Typical use and users

Used by drilling-equipment manufacturers, suppliers and purchasers, mining and geotechnical contractors, engineering designers, testing and inspection bodies, and standards committees. It is applied when designing, specifying, buying or maintaining rotary core diamond drilling tools and accessories where inch-unit sizing and ensured interchangeability of System A components is required.

Related standards

Closely related to ISO 3551-1 (System A — Metric units). Associated and neighboring standards include the ISO 3552 series (System B parts 1 and 2), ISO 8866 (System C), and other ISO/TC 82 standards covering drilling equipment, wireline core drilling and related terminology and safety requirements. National adoptions/identical publications (for example SS‑ISO 3551-2) may exist.

Keywords

rotary core, diamond drilling, System A, inch units, drill rods, couplings, casings, core barrel, core bit, interchangeability, ISO 3551-2:1992, drilling equipment, ICS 73.100.30

FAQ

Q: What is this standard?

A: ISO 3551-2:1992 is an international standard that defines nomenclature and inch-unit dimensions for System A rotary core diamond drilling equipment to ensure interchangeability of components.

Q: What does it cover?

A: It covers drill rods and couplings; casings and casing components; core barrels and bits; core lifters and reaming shells; and related fittings, specifying leading dimensions, tolerances and characteristic size ranges in inch units.

Q: Who typically uses it?

A: Manufacturers, suppliers and buyers of drilling equipment, mining and geotechnical contractors, equipment designers, inspectors and standards bodies that require inch-unit System A compatibility.

Q: Is it current or superseded?

A: The edition is the 1992 original (Edition 1). The ISO record shows the publication as confirmed in 2023, so the 1992 edition remains the current (confirmed) version.

Q: Is it part of a series?

A: Yes — it is Part 2 (inch units) of the ISO 3551 series for System A; ISO 3551-1 is the metric‑units counterpart. The ISO 355x family also includes standards for other systems (for example ISO 3552 for System B and ISO 8866 for System C).

Q: What are the key keywords?

A: rotary core, diamond drilling, System A, inch units, drill rods, casings, core barrels, interchangeability, drilling equipment.