ASTM D3896-07 (2016) rus PDF

Full title and description

ASTM D3896-07(2016) — Standard Practice for Rubber From Synthetic Sources — Sampling. This practice establishes a uniform referee procedure for selecting and preparing samples from lots of solid synthetic rubber (bales or packages) for testing and lot-acceptance purposes.

Abstract

This standard specifies a variables sampling plan intended for referee use to determine the properties or quality of a lot of synthetic rubber. It gives rules for random selection of sample bales or packages, removal of test portions, sample sizes appropriate to typical tests, and handling/packaging of test portions prior to testing. The practice assumes visually homogeneous material and requires increased sampling when heterogeneity is evident.

General information

• Status: Active (reapproved/reaffirmed practice; maintained by ASTM D11 committee).
• Publication date: Original designation 2007; designation shown as D3896-07(2016) indicating reapproval in 2016 (historical record updated through 2021).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: 83.060 — Rubber (rubber industry standards and test practices).
• Edition / version: D3896-07(2016); listed as D3896-07R16 in ASTM records (reapproved/reaffirmed cycle).
• Number of pages: 2 pages (concise practice).

Scope

Applies to referee sampling procedures for lots of solid synthetic rubbers marketed in bales or packages. Covers sampling plans to determine lot acceptability (variables sampling), requirements for increasing sample numbers when heterogeneity exists, specification of test-portion removal, and instructions for storage/packaging of portions prior to testing. SI units are the standard in the practice.

Key topics and requirements

• Purpose and significance of referee sampling for synthetic rubber lots.
• Variables-based sampling plan for lot acceptance and risk considerations for producer and consumer.
• Random selection of sample bales/packages and procedures for selecting test portions.
• Test-portion sizes: typically 600 to 1500 g per test portion (adjusted depending on tests to be performed).
• Removal method: cut through entire bale normal to large surfaces; remove extraneous surface material (film, talc, paper) before testing.
• Handling and storage: place test portions in airtight containers no more than twice the volume of the portion or wrap tightly in two layers of aluminum foil until tested.
• Assumption of visual homogeneity and instruction to increase samples if obvious heterogeneity is observed.

Typical use and users

Used by quality control and testing laboratories, material suppliers, producers and purchasers of synthetic rubber, and referee/arbitration labs involved in lot acceptance disputes. It provides a short, standardized procedure for preparing representative test portions for physical and chemical testing of solid synthetic rubber.

Related standards

Related ASTM D-series standards for rubber testing and properties (examples include ASTM D412, D395 and other D‑standards covering test methods and terminology for rubber products). The practice is listed among other ASTM rubber standards under ICS 83.060.

Keywords

synthetic rubber; sampling; test portion; bale; package; lot acceptance; variables sampling; referee procedure.

FAQ

Q: What is this standard?

A: ASTM D3896-07(2016) is a short ASTM practice that defines referee sampling procedures for solid synthetic rubbers, specifying how to select bales or packages and prepare test portions for testing and lot acceptance.

Q: What does it cover?

A: It covers a variables sampling plan for referee purposes, random selection of sample bales/packages, test-portion removal techniques, recommended portion sizes (600–1500 g depending on tests), handling and storage of portions, and instructions to increase sampling when material is heterogeneous.

Q: Who typically uses it?

A: Quality control laboratories, manufacturers and purchasers of synthetic rubber, and arbitration/referee laboratories use this practice when representative sampling of rubber lots is required.

Q: Is it current or superseded?

A: The designation appears as D3896-07(2016) indicating reapproval in 2016; ASTM records list the practice as D3896-07R16 with historical updates (records show activity through 2021). Third‑party distributors also list it as an active document and offer translated editions. Users should check ASTM or authorized distributors for the most recent status and available translations.

Q: Is it part of a series?

A: It is part of the ASTM D standards series covering rubber and rubber testing practices and sits conceptually with other D‑standards under ICS 83.060 (rubber). It is a standalone sampling practice rather than a method series (but is used in conjunction with many D‑test methods).

Q: What are the key keywords?

A: synthetic rubber, sampling, lot acceptance, test portion, bale, package, variables sampling, referee.