ASTM E1707-95e1 PDF

Full title and description

ASTM E1707-95e1 — Standard Guide for Estimating Uncertainties in Dosimetry for Radiation Processing. This guide identifies sources of error in dosimetry performed in gamma, X‑ray (bremsstrahlung) and electron irradiation facilities and provides procedures for evaluating and combining those uncertainty components to produce a statement of measurement uncertainty for absorbed dose.

Abstract

This guide explains basic measurement concepts (measured value, “true” value, error and uncertainty), describes Type A and Type B components of uncertainty, and gives methods (aligned with ISO/GUM procedures) for estimating individual components, calculating combined standard uncertainty, and reporting expanded overall uncertainty for dose measurements. Worked examples and annexes illustrate practical application to routine dosimetry systems used in radiation processing.

General information

• Status: Withdrawn (document marked withdrawn; subsequently superseded by ISO/ASTM guidance).
• Publication date: Originally published 1995 (designation 95); editorial revision/entry E95e1 (dates reported 1999 for the e1 reissue).
• Publisher: ASTM International (ASTM / ISO‑ASTM collaborative series in later revisions).
• ICS / categories: 17.240 (Radiation measurements / dosimetry).
• Edition / version: E1707-95e1 (original 1995 edition with e1 editorial entry).
• Number of pages: ~20 pages (common bibliographic listings show 20 pages for the 95/e1 text).

Scope

The guide provides a framework for identifying and quantifying uncertainty components associated with dosimetry systems used to measure absorbed dose in radiation processing (gamma, electron and X‑ray). It covers selection and evaluation of uncertainty contributions, calculation of combined standard uncertainty and expanded uncertainty, and includes examples/annexes demonstrating uncertainty budgets for typical dosimetry situations. It follows internationally recognized uncertainty evaluation procedures.

Key topics and requirements

• Identification of sources of measurement uncertainty in dosimetry (instrumentation, calibration, positioning, energy response, environmental factors).
• Classification and evaluation of components as Type A (statistical) or Type B (other) contributions.
• Application of GUM/ISO methodologies to compute combined standard uncertainty and expanded uncertainty for absorbed dose.
• Worked examples and uncertainty budget templates (annexes) to guide practical implementation.
• Guidance intended to support compliance with related dosimetry and radiation‑processing practices and standards.

Typical use and users

Used by radiation processing facilities, calibration and testing laboratories, dosimetrists, quality managers, and regulatory/standards personnel to establish and document measurement uncertainty for absorbed dose determinations and to support process control, validation and compliance activities in irradiation of medical devices, food, and other products.

Related standards

This guide is part of a set of dosimetry and radiation‑processing standards and has been superseded/updated in later ISO/ASTM joint documents (ISO/ASTM 51707 series and subsequent ASTM E1707 revisions — e.g., ASTM/ISO 51707 (2002), later 2005, 2015 and more recent ISO/ASTM E1707 updates). Users are normally referred to the later ISO/ASTM 51707 and related practices (ISO/ASTM 52628, ISO/ASTM 51261, ISO/ASTM 52701) for current requirements.

Keywords

dosimetry, absorbed dose, uncertainty, error analysis, electron beam, gamma radiation, X‑ray (bremsstrahlung), measurement uncertainty, Type A, Type B, uncertainty budget, radiation processing.

FAQ

Q: What is this standard?

A: ASTM E1707-95e1 is a guide for estimating measurement uncertainties in dosimetry for radiation processing (dose measurements in gamma, X‑ray and electron irradiation). It provides methods for identifying and quantifying uncertainty components and for reporting combined and expanded uncertainties.

Q: What does it cover?

A: It covers the principles of measurement uncertainty, classification of uncertainty components (Type A and Type B), evaluation techniques (aligned with ISO/GUM practice), preparation of uncertainty budgets, and worked examples specific to dosimetry systems used in radiation processing.

Q: Who typically uses it?

A: Dosimetry laboratories, irradiation facility personnel, calibration specialists, quality assurance managers, and regulators involved in radiation processing of medical devices, food, packaging and similar products.

Q: Is it current or superseded?

A: E1707-95e1 has been withdrawn and later superseded by ISO/ASTM joint guides in the 51707 series (ASTM/ISO 51707 published in 2002 and later revisions). Users should consult the most recent ISO/ASTM 51707/E1707 documents for current guidance.

Q: Is it part of a series?

A: Yes — it belongs to the family of dosimetry and radiation processing standards and guidance (ISO/ASTM 51707 series, ISO/ASTM 52628, ISO/ASTM 51261, ISO/ASTM 52701, etc.) that together address dosimetry practice, calibration and uncertainty for radiation processing.

Q: What are the key keywords?

A: Absorbed dose, dosimetry, uncertainty, measurement uncertainty, Type A, Type B, electron beam, gamma, X‑ray, uncertainty budget.