ASTM RR-D10-1017 2014 PDF

Full title and description

Research Report RR: D10-1017 — "Interlaboratory Study to Establish Precision Statements for ASTM D7860‑14, Measurement of Torque Retention for Child Resistant and Non‑Child Resistant Packages with Continuous Thread Closures Using Automated Torque Testing Equipment." The report documents an interlaboratory study carried out to develop precision (repeatability and reproducibility) statements to support ASTM standard D7860.

Abstract

This research report (RR‑D10‑1017), approved 1 October 2014, summarizes an interlaboratory study in which two laboratories tested two bottle/cap combinations (Combination A: push‑and‑turn lug type child‑resistant; Combination B: continuous thread) with automated torque testing equipment to produce precision statistics (repeatability and reproducibility) for ASTM D7860. The report includes test instructions, equipment descriptions, raw data tables and statistical analysis (precision and bias statements) and provides recommended precision limits for use with D7860.

General information

• Status: Research Report — approved (issued as RR:D10‑1017, associated with ASTM D7860-14).
• Publication date: 1 October 2014 (report approval date).
• Publisher: ASTM International.
• ICS / categories: Packaging and distribution of goods in general — ICS 55.020 (packaging; related to closure testing and packaging performance).
• Edition / version: RR:D10‑1017 (2014) — associated with ASTM D7860‑14.
• Number of pages: 14 pages (report PDF).

Scope

The report documents an interlaboratory study performed to establish precision statements (repeatability and reproducibility limits) for the test method defined in ASTM D7860. It covers measurement of torque retention for continuous‑thread closure/container systems (child‑resistant and non‑child‑resistant) using automated transducer‑based torque instruments at specified rotational speeds (examples in the study: 1 RPM and 4 RPM). The scope is limited to dry‑torque measurements and to the test conditions and sample types used in the study.

Key topics and requirements

• Interlaboratory study design and adherence to Practice E691 for precision estimation (with exceptions noted for limited laboratory count).
• Precision statistics: repeatability (r) and reproducibility (R) limits for cap removal torque at test speeds (1 RPM and 4 RPM) for the two sample combinations.
• Test method reference: ASTM D7860 (measurement procedures, instrument settings, rpm/torque ramp, dwell time, and data recording).
• Recommendations on instrumentation practice — use the same automated torque instrument for a given set of removals to reduce inter‑instrument variability.
• Annexes and supporting material: data report forms, equipment descriptions, statistical tables and raw data used to derive precision limits.

Typical use and users

Primary users include packaging engineers, quality and test laboratories, closure and container manufacturers, regulatory bodies and consumer safety analysts who require validated precision information for torque retention testing. The report supports consistent application and interpretation of ASTM D7860 test results during package development, verification, and regulatory compliance activities.

Related standards

Directly associated: ASTM D7860 (Standard Test Methods for Measurement of Torque Retention). Other referenced or related documents include ASTM Practice E691 (interlaboratory precision statement development), ASTM D3475 (classification of child‑resistant closures) and ASTM D996 (terminology of packaging). The report was prepared under the jurisdiction of ASTM Committee D10 (Packaging), Subcommittee D10.32.

Keywords

interlaboratory study; precision statement; repeatability; reproducibility; torque retention; automated torque testing; continuous thread closure; child‑resistant closure; ASTM D7860; packaging testing.

FAQ

Q: What is this standard?

A: This item is a Research Report (RR:D10‑1017) issued by ASTM International that documents an interlaboratory study to establish precision statements for the test methods given in ASTM D7860‑14. It is not the primary test standard itself but provides the statistical support (precision and reproducibility data) for D7860.

Q: What does it cover?

A: It covers the design, execution, raw data and statistical analysis of an interlaboratory study on torque retention measurements for two representative bottle/closure combinations tested with automated torque instruments (results include repeatability and reproducibility limits at specified RPMs). The report supports interpretation of D7860 test results.

Q: Who typically uses it?

A: Packaging test laboratories, manufacturers of containers and closures, packaging engineers, and regulators who need validated precision values for torque retention testing and for assessing equivalence of test results between laboratories.

Q: Is it current or superseded?

A: The research report was approved and published 1 October 2014 and remains the published RR for the D7860‑14 test method. ASTM D7860 itself was originally approved in 2014 (D7860‑14) and later reapproved/reissued (D7860‑14 (Reapproved/updated) as shown in document history — e.g., reapproval in 2022). The RR remains the supporting precision study for the 2014 edition of D7860. Users should check the current status of D7860 for any later revisions or reapprovals when applying the test method.

Q: Is it part of a series?

A: It was prepared under ASTM Committee D10 on Packaging (Subcommittee D10.32) and is associated with the suite of ASTM packaging and closure test standards (notably ASTM D7860). It is one research report among other committee technical reports and precision studies produced to support ASTM test methods.

Q: What are the key keywords?

A: automated torque measurement; torque retention; removal torque; continuous thread closure; child‑resistant closure; interlaboratory study; repeatability; reproducibility.