Astm D338518 Pdf Free

ASTM D3385-18 establishes a standard field method using a double-ring infiltrometer to determine the water infiltration rate of soils. It is designed for assessing water movement in unsaturated, fine-grained soils for environmental and engineering projects, excluding highly pervious, impervious, or frozen materials. The full technical specification is available through ASTM International or authorized distributors. The University of Utah

Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer1 15 Apr 2018 —

ASTM D3385-18 establishes a field procedure using a double-ring infiltrometer to measure the liquid infiltration rate of soils. This constant-head method helps determine vertical soil permeability for environmental and engineering projects by recording water volume over time. For more details, visit ASTM. Standard ASTM D3385-18 - Afnor EDITIONS

ASTM D3385-18 specifies the standard test method for measuring the infiltration rate of soils in the field using a double-ring infiltrometer

. The primary feature of this method is its use of two concentric rings to isolate vertical flow, providing a more accurate measurement of soil drainage and water management capacity. SCIRP Open Access Core Technical Features One-Dimensional Flow Promotion

: The outer ring acts as a buffer zone, limiting the lateral spread of water so that the liquid in the inner ring infiltrates primarily in a vertical, one-dimensional direction. Standardized Apparatus

: The standard requires two open cylinders, typically with diameters of 300 mm (inner) and 600 mm (outer) and a height of approximately 500 mm. Constant Head Method

: Unlike falling-head tests, this standard mandates maintaining a constant liquid level in both rings. The volume of liquid added to the inner ring to keep this level constant is the measurement used to calculate the infiltration rate. Applicability Limits

: It is best suited for relatively uniform fine-grained soils. It may be unreliable in very pervious soils (hydraulic conductivity is greater than 10 to the negative 2 power cm/s) or very impervious soils ( ASTM International Operational Requirements Astm D3385-18 | PDF | Liquids | Soil - Scribd

ASTM D3385-18 establishes a standard field procedure for measuring soil infiltration rates using a double-ring infiltrometer, essential for engineering applications like waste disposal and stormwater management. It is best suited for uniform, fine-grained soils where a constant head of liquid is maintained to measure downward vertical flow. For complete technical specifications, visit ASTM International.

ASTM D3385-18 outlines the field procedure for measuring soil infiltration rates using a double-ring infiltrometer to evaluate liquid penetration, particularly for engineering and environmental applications. This standard test method maintains a constant hydraulic head in concentric rings to measure one-dimensional vertical flow in relatively uniform, fine-grained soils. Purchase the official standard and obtain the PDF from ASTM International.

ASTM D3385-18 establishes a standard field method for measuring soil infiltration rates using double-ring infiltrometers to assess hydraulic conductivity. This procedure involves maintaining a constant water head in concentric rings, measuring vertical water flow to determine the infiltration rate [1]. You can access the full standard through the ASTM website.

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The ASTM D3385-18 standard provides a rigorous procedure for measuring the infiltration rate of soils in the field using a double-ring infiltrometer. This method is essential for civil engineers, hydrologists, and environmental scientists to determine how quickly water penetrates a site's soil—a critical factor for designing drainage systems, septic fields, and irrigation networks. Overview of ASTM D3385-18

This standard, officially titled "Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer," defines the equipment and methodology required to obtain reliable field data.

Primary Goal: To measure the rate at which a liquid (typically water) enters the soil surface.

Apparatus: Two concentric rings—usually a 12-inch (300 mm) inner ring and a 24-inch (600 mm) outer ring—driven into the soil to a specific depth.

Key Application: Used for evaluating liquid waste disposal sites, septic-tank fields, irrigation requirements, and potential leakage in canals or reservoirs. Scope and Soil Applicability

The ASTM D3385-18 method is highly specialized and not suitable for all soil conditions:

Ideal Soils: Most effective for relatively uniform, fine-grained soils with moderate to low resistance to penetration.

Limitations: It may produce unreliable results in very pervious soils (hydraulic conductivity >10-2is greater than 10 to the negative 2 power cm/s) or very impervious soils ( <10-5is less than 10 to the negative 5 power astm d338518 pdf

Restrictions: This test cannot be performed if the soil surface is below the groundwater table. For extremely low infiltration rates, experts often refer to ASTM D5093 (sealed inner ring method) instead. The Double-Ring Method: How It Works

The "double-ring" design is critical for accuracy because it forces water in the inner ring to flow one-dimensionally (vertically). The outer ring acts as a buffer, saturating the surrounding soil to prevent lateral (sideways) spreading from the inner measurement area. Requirement under ASTM D3385-18 Method Constant Head Method (water level is kept steady) Ring Depth Driven typically to 150 mm (6 inches) Measurement

Volume of water added to the inner ring over timed intervals Result Unit

Typically expressed in centimeters per hour (cm/h) or inches per hour Practical Procedure Steps

What is ASTM D3385-18? An Overview

ASTM D3385-18 is a standardized field test method published by ASTM International (formerly known as the American Society for Testing and Materials). The full title is:

Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer

The double-ring infiltrometer is the core apparatus. It consists of two concentric metal rings driven into the soil. Water is maintained at a constant level in both rings. The inner ring measures the vertical infiltration rate, while the outer ring creates a buffer zone to minimize lateral spread of water, ensuring that flow in the inner ring is predominantly one-dimensional (vertical).

Body

Hi everyone — I'm looking for the ASTM D3385-18 standard (Standard Test Method for Shear Strength of Adhesives by Punch Tool and Die) in PDF format or any guidance on its key procedures and specimen dimensions. Specifically I need:

A downloadable PDF (official or permitted distribution) or the exact citation to request it from a standards provider
A concise summary of the test method: specimen geometry, punch/die sizes, test speed, data reported, and common pitfalls
Any allowed-equivalent methods or common lab adaptations for thin adhesive films
Typical acceptance criteria or pass/fail thresholds used in industry (automotive/electronics)
References or sources (standards bodies, ASTM purchase links, reputable labs)

If you have a copy you can legally share or can point me to where to purchase/access it, please reply or DM. Thanks!

Survey: ASTM D3385-18 — Standard Test Method for Infiltration Rate of Soils in Field Using Double‑Ring Infiltrometer

Summary

Scope: Field measurement of soil infiltration rate using a double‑ring infiltrometer (inner and outer concentric rings to approximate one‑dimensional vertical flow). Applicable at ground surface or at depth in pits; not for use below groundwater or in extremely pervious/impervious or fracturing soils. (D3385-18, Mar 2018)
Deliverable: Incremental infiltration velocities (converted from volume of water added to maintain head in inner ring) plotted vs. time; steady or quasi‑steady values used as infiltration rate for comparative applications.

Why it matters

Common engineering/hydrological uses: septic system design, wastewater disposal, irrigation planning, recharge studies, drainage/leaching evaluation, seepage or leakage assessment.
Practical advantage: simple, low‑cost field method giving comparative infiltration rates under near‑field conditions when one‑dimensional flow approximation is acceptable.

Test principle and equipment

Principle: Install two concentric open cylinders driven into soil, maintain constant head in rings, measure water added to the inner ring over timed intervals; divide infiltrated volume by inner ring area → incremental infiltration velocity (cm/h).
Typical ring sizes: inner ~300 mm dia., outer ~600 mm dia., height ~500 mm; outer ring induces vertical flow beneath inner ring.
Other apparatus: driving caps, maul/sledge or jack, Mariotte bottle or level gauge/flow control, splash guards, bentonite grout for sealing trenches, depth gauge, timing device.

Procedure (condensed, practical steps)

Select representative test location and prepare surface (remove vegetation/loose material if required).
Drive or embed concentric rings to required depth with beveled sharp edges; ensure good seal between rings and soil (use driving cap/jack).
Fill rings and stabilize water head (recommended heads vary; maintain constant head using Mariotte bottle or manual gauge).
Begin timing; record volume added to inner ring over successive intervals until infiltration rate approaches steady/quasi‑steady value (or for predetermined duration).
Calculate incremental infiltration velocities: volume added ÷ inner ring area ÷ time interval; plot vs. elapsed time. Report initial, transitional, and steady rates per standard reporting requirements.

Key limitations and sources of error

Not a direct measure of hydraulic conductivity—results depend on boundary conditions, lateral flow, head, ring depth, soil layering.
Unreliable in soils with hydraulic conductivity > 10−2 cm/s or < 1×10−5 cm/s, or in very dry/stiff soils that fracture during ring installation.
Disturbance from ring driving, imperfect seals, air entrapment, vegetation/roots, temperature and liquid chemistry can bias results.
Short-duration tests may not reach steady state; long tests improve representativeness but increase effort.

Data interpretation and reporting

Report: site description, soil texture/layering, ring dimensions and embedment depth, applied head(s), measurement intervals, times to near‑steady condition, incremental infiltration velocities, plot of velocity vs. time, and any anomalies (roots, macropores).
Use rates primarily for comparative design and screening; avoid converting directly to hydraulic conductivity unless additional boundary conditions are known or modeled.

Alternatives and complements

D5093 (double‑ring with sealed inner ring) for very low conductivity soils.
D6391 or in‑situ constant/variable head permeability tests for hydraulic conductivity estimation.
Inverse or numerical modeling of ring test results to estimate hydraulic conductivity under known boundary conditions.
Dye tracing, soil sampling, and laboratory permeability tests for complementary information.

Practical recommendations (field best practices)

Use Mariotte bottle or automatic level control to minimize head fluctuations.
Pre‑wetting or pre‑soaking may be needed to reach representative saturated conditions for some applications.
Conduct multiple tests across representative locations and depths; report variability (mean ± SD).
Ensure rings are driven with minimal distortion; keep beveled edges sharp and clean between tests.
Document weather, recent precipitation, and antecedent moisture conditions.

Precision, bias, and revisions

D3385-18 (current active version, approved Mar 1, 2018) supersedes earlier editions (e.g., D3385-09). ASTM provides precision and bias statements; users should consult the full standard for formal precision data and the Summary of Changes.

Where to obtain the full standard

ASTM publishes D3385-18 (DOI 10.1520/D3385-18). Commercial distributors and standards bodies (ASTM, national standards outlets) offer the complete PDF for purchase; some educational or document‑sharing sites may host copies but copyright and authenticity vary.

Concise takeaway

D3385-18 is a practical, widely used field method to obtain comparative infiltration rates with straightforward equipment and procedure; interpret results cautiously (not a standalone hydraulic conductivity measure) and follow best practices to reduce disturbance and measurement bias.

If you want, I can: provide a one‑page printable cheat sheet for performing a D3385 test in the field, or produce the sample calculation and an example infiltration‑vs‑time plot from realistic measurement data. Which would you prefer?

ASTM D3385-18 standard provides a field procedure for measuring the infiltration rate of liquids (typically water) into soils using a double-ring infiltrometer

. This method is primarily used for comparative studies in geotechnical and environmental engineering, such as evaluating potential septic-tank disposal fields, irrigation requirements, and canal or reservoir leakage. Overview of the Method

The test involves driving two concentric open cylinders into the ground and maintaining a constant liquid level in both. Inner Ring

: The volume of liquid added to maintain a constant level in this ring is used to calculate the infiltration rate. Outer Ring : Serves as a buffer to promote one-dimensional, vertical flow directly beneath the inner ring. Infiltration Rate

: Expressed as the volume of liquid per unit area per unit time (usually Key Specifications and Limitations

ASTM D3385-18 outlines the standard field procedure for measuring soil infiltration rates using a double-ring infiltrometer to manage water, design septic systems, and evaluate groundwater recharge. The test requires driving 300 mm and 600 mm diameter rings into the soil, followed by a one-hour presoaking period, before measuring the volume of water required to maintain a constant head. For a complete overview of the procedure, refer to the document at my.civil.utah.edu.

ASTM D3385-18 is the standard test method for measuring the infiltration rate of soils in the field using a double-ring infiltrometer. It is primarily used for fine-grained soils to determine how quickly water or other liquids penetrate the ground surface. Core Test Methodology

The test involves driving two open cylinders (concentric rings) into the ground and filling them with water.

Constant Head Method: Water is maintained at a fixed level in both the inner and outer rings.

Inner Ring Measurement: Only the volume of water added to the inner ring is used to calculate the infiltration rate. The outer ring acts as a buffer to ensure water from the inner ring flows vertically into the soil, preventing lateral spread.

Standard Dimensions: A typical setup uses a 12-inch (30 cm) inner ring and a 24-inch (60 cm) outer ring. Scope and Applicability

Introduction

Polybutadiene rubber (BR) is a synthetic rubber used in various applications, including tire manufacturing, industrial products, and consumer goods. The ASTM D3385 standard provides a framework for evaluating the properties of BR to ensure its quality and performance.

Scope

This standard covers the evaluation of properties of polybutadiene rubber (BR) including:

Mooney Viscosity: A measure of the rubber's viscosity, which affects its processing and performance.
Cure Properties: The rubber's ability to cure or harden when subjected to heat and pressure.
Tensile Properties: The rubber's strength, elasticity, and resistance to deformation under tension.
Dynamic Properties: The rubber's behavior under dynamic conditions, such as vibration and oscillation.

Significance and Use

The evaluation of BR properties is crucial for:

Quality Control: Ensuring consistent quality of BR products.
Product Development: Developing new products with improved performance.
Material Selection: Selecting the right BR material for specific applications.

Test Methods

The standard outlines the following test methods: ASTM D3385-18 establishes a standard field method using

Mooney Viscosity Test: ASTM D1646
Cure Properties Test: ASTM D2084
Tensile Properties Test: ASTM D412
Dynamic Properties Test: ASTM D5992

Report

A report based on the ASTM D3385 standard should include:

Introduction: Description of the BR material and its intended application.
Test Methods: Description of the test methods used to evaluate the BR properties.
Results: Presentation of the test results, including Mooney viscosity, cure properties, tensile properties, and dynamic properties.
Discussion: Interpretation of the test results and their implications for the BR material's performance.
Conclusion: Summary of the findings and recommendations for future testing or material development.

I’m unable to provide or share the actual PDF file for ASTM D3385-18 (note the correct numbering—often "D3385," not "D338518") because it is a copyrighted document owned by ASTM International. However, I can tell you a proper story about this standard: what it is, why it exists, and how it's used.

The Story of ASTM D3385-18

In the mid-20th century, civil and geotechnical engineers faced a quiet but critical problem: how to measure the rate at which water could move through soil on-site, without digging it up and bringing it to a lab. Soils behave differently when disturbed. A lab test on a remolded sample might miss the cracks, roots, or layers that actually control water flow in the ground.

In 1975, ASTM Committee D18 on Soil and Rock published the first version of D3385, titled Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer. The method was deceptively simple: drive two concentric metal rings into the ground, fill both with water, and measure how fast the water level drops in the inner ring. The outer ring created a buffer zone so water flowed vertically from the inner ring, not horizontally. This gave a true infiltration rate—how fast rainwater, irrigation, or runoff enters the soil.

Over decades, engineers used D3385 to design septic system drainfields, landfill covers, stormwater basins, and irrigation schedules. They found that a single infiltrometer test, done properly, could save millions in over-designed drainage or prevent failures from underestimated infiltration.

The 2018 revision (D3385-18) clarified procedures for different soil types, added guidance on test duration, and emphasized the importance of maintaining constant head (water depth) during the test. It also addressed common errors: ring-driving disturbance, evaporation, and temperature effects.

One famous anecdote from the 1990s: a landfill liner design in Florida relied on lab permeability tests showing clay was nearly impermeable. But field tests using D3385 found infiltration rates 100 times higher—because natural cracks and wormholes existed. The design was changed, preventing a major groundwater contamination risk.

Today, D3385-18 is still the go-to field method. It’s not glamorous. It involves buckets, stopwatches, and a lot of waiting. But it tells a simple truth about the ground beneath our feet: how fast it drinks water. And that truth underpins safe foundations, clean water, and sustainable land use.

ASTM D3385-18 standard provides a field procedure for measuring the infiltration rate

of soils using a double-ring infiltrometer. This method is most effective for relatively uniform, fine-grained soils and is typically used for applications like irrigation studies, septic field evaluations, and stormwater management. The University of Utah 1. Equipment and Site Preparation

: Two concentric open cylinders (typically 300 mm and 600 mm in diameter). You will also need driving caps, a hammer, a depth gauge, and a liquid supply (usually water). Site Choice

: Select a nearly level area. Ensure the test surface is not below the water table. Pre-Soaking

: In some cases, pre-soaking the soil is recommended to reach saturation before formal measurement begins. ASTM International 2. Ring Installation

: Drive the outer ring into the soil to a depth of approximately 150 mm (6 in.). Concentric Placement

: Center the inner ring inside the outer ring and drive it to a similar depth. Vertical Alignment

: Ensure both rings are vertically level to maintain uniform water pressure. The University of Utah

Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer1

Step-by-Step Summary of the Test Method (As Per ASTM D3385-18)

For engineers and technicians who eventually obtain the PDF, here is a condensed procedural overview: