ASTM D1113-13 PDF
Name in English:
St ASTM D1113-13
Name in Russian:
Ст ASTM D1113-13
Original standard ASTM D1113-13 in PDF full version. Additional info + preview on request
Full title and description
Standard Test Method for Vegetable Matter and Other Alkali‑Insoluble Impurities in Scoured Wool — Test method designation D1113‑13. The standard specifies a chemical procedure for determining the content of oven‑dried, ash‑free, alcohol‑extractive‑free vegetable matter and other alkali‑insoluble impurities remaining in scoured wool and related animal fibers (for example goat, camel, alpaca).
Abstract
This test method describes dissolving wool (or related animal fiber) in controlled alkaline solution (examples in the standard include a boiling 3% NaOH or a hot 10% NaOH solution), recovering the undissolved residue, removing ash and volatile extractives, and converting the measured residue to vegetable‑matter and other alkali‑insoluble impurity weight by tabulated factors. The procedure has historically been used for commercial acceptance testing and by customs authorities for import evaluation.
General information
- Status: Withdrawn (withdrawal published January 13, 2022).
- Publication date: 2013 (designation D1113‑13; last approval/publication in mid‑2013 — listed as 30 June 2013 / 1 July 2013 in public catalogs).
- Publisher: ASTM International.
- ICS / categories: Textiles / Natural fibres (ICS code commonly associated with wool and natural fibers: 59.060.10).
- Edition / version: D1113‑13 (2013).
- Number of pages: 5 pages (published brief test method).
Scope
The standard covers the determination of oven‑dried, ash‑free, alcohol‑extractive‑free vegetable matter and other alkali‑insoluble impurities in scoured wool and related animal fibers. It defines the chemical dissolution procedure, residue recovery and preparation, and the conversion factors used to report vegetable matter and impurity contents. It also notes its use for acceptance testing of commercial shipments and historical use by the U.S. Customs Service. The standard does not address all safety concerns associated with handling strong alkali and requires users to implement appropriate safety practices.
Key topics and requirements
- Definition of vegetable matter and other alkali‑insoluble impurities and terms referenced to ASTM textile terminology.
- Sample preparation and specification of drying and ash‑free procedures prior to weighing.
- Chemical dissolution step: controlled boiling 3% NaOH or hot 10% NaOH under prescribed conditions to dissolve wool fiber while leaving vegetable matter and alkali‑insoluble residue.
- Recovery, washing, drying, and ash procedures for residue; use of tabulated factors to convert measured residue to reported vegetable‑matter base and other impurities.
- Reporting and calculation rules for expressing results, and notes on interlaboratory bias investigation for acceptance testing.
- Safety and handling notes for strong alkaline reagents; users must follow applicable safety practices.
Typical use and users
Used by textile testing laboratories, wool processors and brokers, quality control personnel in the wool trade, import/export inspection authorities (historically referenced by U.S. Customs for import determinations), and researchers comparing vegetable‑matter content between lots or treatments. It has been applied for acceptance testing of commercial shipments and for laboratory comparisons between suppliers and purchasers.
Related standards
Closely related ASTM documents and references include Terminology D123 (textile terminology), Test Method D584 (wool content of raw wool — laboratory scale), Test Method D1334 (wool content of raw wool — commercial scale), and Practice D2720 (calculations of commercial weight and yield). The standard was maintained under Committee D13 (Textiles), Subcommittee D13.13 (Wool and Felt).
Keywords
vegetable matter; alkali‑insoluble impurities; scoured wool; wool testing; sodium hydroxide dissolution; ASTM D1113; textile analysis; wool impurities; acceptance testing; U.S. Customs.
FAQ
Q: What is this standard?
A: ASTM D1113‑13 is a short ASTM test method that defines a chemical procedure for quantifying oven‑dried, ash‑free, alcohol‑extractive‑free vegetable matter and other alkali‑insoluble impurities in scoured wool and related animal fibers.
Q: What does it cover?
A: It covers sample preparation, controlled alkaline dissolution (examples include boiling 3% NaOH or hot 10% NaOH), recovery and treatment of the undissolved residue, and conversion factors and calculations to report vegetable‑matter and impurity contents. Safety considerations for handling alkaline reagents are noted but left to the user to implement.
Q: Who typically uses it?
A: Textile testing labs, wool processors and traders, quality control teams, import inspection authorities (historically referenced by U.S. Customs), and researchers comparing fiber lots or cleaning processes.
Q: Is it current or superseded?
A: D1113‑13 was withdrawn (withdrawal published January 13, 2022). Users should consult ASTM International or the responsible ASTM committee (D13) for any replacement method, revisions, or current recommended practices. The withdrawal note indicates the document required updating by the end of the eighth year after last approval.
Q: Is it part of a series?
A: It is associated with other ASTM textile/wool test methods and practices (for example D584, D1334, D123, D2720) and falls under the jurisdiction of ASTM Committee D13 on Textiles (subcommittee for wool and felt). It is a stand‑alone test method within that family of wool analysis standards.
Q: What are the key keywords?
A: Vegetable matter; alkali‑insoluble impurities; scoured wool; NaOH dissolution; ash‑free residue; wool testing; ASTM D1113.