BS EN 16416-2023 PDF
Name in English:
STB BS EN 16416-2023
Name in Russian:
СТБ BS EN 16416-2023
Original standard BS EN 16416-2023 in PDF full version. Additional info + preview on request
Full title and description
STB BS EN 16416-2023 — Geosynthetic clay barriers. Determination of water flux index. Flexible wall permeameter method at constant head. This document is the 2023 EN test method adopted as a British Standard for laboratory measurement of water flux through saturated geosynthetic clay barrier (GBR‑C) specimens using a flexible‑wall permeameter at constant head.
Abstract
This standard specifies an index test method for determining the water flux (index flux) of geosynthetic clay barriers (GBR‑C) using a flexible‑wall permeameter at constant head. It is intended for use in manufacturing quality control and for conformity checks on GBR‑C products without additional attached sealing layers (for example polymeric or bituminous coatings). The measured index flux is an indicative laboratory value and is not considered representative of in‑service flux of an installed GBR‑C.
General information
- Status: Current (EN published and adopted as national versions, active standard).
- Publication date: 2023 (BSI release 28 February 2023; other national adoptions published through 2023).
- Publisher: British Standards Institution (BSI) — adoption of EN 16416:2023 as BS EN 16416:2023.
- ICS / categories: 59.080.70 (Geotextiles) and 91.100.50 (Binders; sealing materials).
- Edition / version: 2023 edition (replaces/supersedes the 2013 edition).
- Number of pages: Typically 17–18 pages depending on national publication (national variants list 16–18 pages in some catalogues).
Scope
Specifies an index laboratory test for measuring water flux through saturated specimens of geosynthetic clay barriers (GBR‑C) using a flexible‑wall permeameter at constant head. The procedure covers apparatus, permeant water, specimen sampling and preparation, test procedure, calculations and reporting. It applies to GBR‑C products without added sealing layers and is intended for factory quality control and conformity checking; the resulting flux value is an index measurement and not representative of field/in‑service flux.
Key topics and requirements
- Definition and purpose of the water flux index (index flux) for geosynthetic clay barriers.
- Use of a flexible‑wall permeameter (triaxial cell type) at constant head to measure flux through saturated GBR‑C specimens.
- Requirements for apparatus, permeant water quality and controlled test conditions (head, confining pressure, temperature, saturation).
- Specimen sampling, cutting, mounting in a flexible‑wall cell and conditioning prior to testing.
- Calculation methods for flux (and ancillary hydraulic parameters) and required reporting information for quality control and conformity records.
- Limitation: test results are index values for laboratory comparison and not a substitute for in‑service performance assessment.
Typical use and users
Used by geotechnical and environmental engineers, manufacturers of geosynthetic clay liners/barriers (GCL/GBR‑C), independent testing laboratories, certification and conformity bodies, and project specifiers for product quality control, type testing and conformity checks during production and procurement of barrier materials for landfills, ponds, canals, tunnels and other containment works.
Related standards
Typical related documents include other EN standards for geosynthetic barriers and test methods referenced by EN 16416 (for example EN standards for permeability/permeant testing, tensile and puncture tests, and standards for geosynthetic barrier specification such as EN 13491 and relevant EN/ISO methods). Users should consult the normative references listed in EN 16416:2023 for the precise cross‑references used in the test method.
Keywords
geosynthetic clay barrier, GBR‑C, geosynthetic clay liner (GCL), water flux index, index flux, flexible‑wall permeameter, constant head, permeability, hydraulic testing, quality control, laboratory method.
FAQ
Q: What is this standard?
A: It is BS EN 16416:2023 — a European test method (published/adopted in 2023) that specifies a laboratory index procedure to measure water flux through geosynthetic clay barrier specimens using a flexible‑wall permeameter at constant head.
Q: What does it cover?
A: The standard covers apparatus, permeant water, specimen sampling and preparation, the test procedure, calculations and reporting for an index flux measurement on saturated GBR‑C specimens. It is intended for manufacturing quality control and conformity checks and is applicable to products without additional sealing layers. The measured value is an index laboratory value and is not claimed to represent in‑service flux.
Q: Who typically uses it?
A: Manufacturers of geosynthetic clay barriers, geotechnical/environmental engineers, independent testing laboratories, certification bodies, and specifiers preparing procurement or acceptance criteria for containment works (landfills, reservoirs, tunnels, mining applications, etc.).
Q: Is it current or superseded?
A: The 2023 edition is the current edition and replaces the earlier 2013 edition (BS EN 16416:2013). National adoptions and publication dates in 2023 vary by standards body.
Q: Is it part of a series?
A: It sits among EN standards on geosynthetic barriers and related test methods (tensile, puncture, permeability, material properties). It is often referenced together with other EN and EN/ISO test methods and product standards for geosynthetic barriers used in containment and tunnel applications.
Q: What are the key keywords?
A: geosynthetic clay barrier, GCL, water flux index, flexible‑wall permeameter, constant head, permeability, index test, quality control.