Cart (0)
  • No items in cart.
Total
$0
There is a technical issue about last added item. You can click "Report to us" button to let us know and we resolve the issue and return back to you or you can continue without last item via click to continue button.
Home
Content
Tour
eLibrary
Store
Search book title
Filters:
FORMAT
BOOKS
All Books
PACKAGES
All Packages
EDITION
to
PUBLISHER
AABC
(1)
AAMI
(338)
ACI
(589)
AISC
(55)
ASA
(234)
ASCE
(996)
ASHRAE
(690)
ASME
(2161)
ASSE
(117)
ASTM
(94958)
AWC
(58)
AWWA
(575)
BHMA
(124)
BICSI
(33)
BIFMA
(21)
BOMA
(20)
BSI
(95391)
CHD
(3)
CRSI
(17)
IAHSS
(1)
IAPMO
(374)
ICC
(319)
IEEE
(6732)
IES
(241)
ISEA
(16)
Joint Commission
(184)
Joint Commission Int.
(1)
NETA
(6)
NFPA
(1667)
TCNA
(17)
TMS
(19)
USGBC
(28)
WILEY
(4)
 
AR
(6)
AZ
(7)
CA
(115)
CT
(3)
FL
(57)
ID
(5)
IL
(5)
IN
(1)
KY
(1)
LA
(2)
MI
(25)
MN
(27)
NC
(27)
NJ
(13)
NY
(61)
OH
(24)
OR
(22)
PA
(7)
RI
(8)
SC
(20)
SD
(1)
TX
(3)
VA
(50)
VT
(6)
WA
(33)
CONTENT TYPE
 Act
 Admin Code
 Announcements
 Bill
 Book
 CADD File
 CAN
 CEU
 Charter
 Checklist
 City Code
 Code
 Commentary
 Comprehensive Plan
 Conference Paper
 County Code
 Course
 DHS Documents
 Document
 Errata
 Executive Regulation
 Federal Guideline
 Firm Content
 Guideline
 Handbook
 Interpretation
 Journal
 Land Use and Development
 Law
 Legislative Rule
 Local Amendment
 Local Code
 Local Document
 Local Regulation
 Local Standards
 Manual
 Model Code
 Model Standard
 Notice
 Ordinance
 Other
 Paperback
 PASS
 Periodicals
 PIN
 Plan
 Policy
 Product
 Product - Data Sheet
 Program
 Provisions
 Requirements
 Revisions
 Rules & Regulations
 Standards
 State Amendment
 State Code
 State Manual
 State Plan
 State Standards
 Statute
 Study Guide
 Supplement
 Sustainability
 Technical Bulletin
 All
  • ASTM
    G18-07(2013) Standard Test Method for Joints, Fittings, and Patches in Coated Pipelines
    Edition: 2013
    $103.58
    Unlimited Users per year

Description of ASTM-G18 2013

ASTM G18 - 07(2013)

Standard Test Method for Joints, Fittings, and Patches in Coated Pipelines

Active Standard ASTM G18 | Developed by Subcommittee: D01.48

Book of Standards Volume: 06.02




ASTM G18

Significance and Use

4.1 The exposed metal surfaces at joints, fittings, and damaged areas in an otherwise coated pipeline will be subjected to corrosion if allowed to come in contact with the soil environment. The performance of joint and patching materials designed to function as protective coverings will depend upon such factors as the ability of the material to bond to both the pipe coating and exposed metal surfaces, the integrity of the moisture seal at lapped joints, and the water absorption characteristics of the joint material.

4.2 The existence of substantial leakage current through the coating joint, patch, or fitting is reliable evidence that the material has suffered a significant decrease in its performance as a protective barrier. In a similar manner, measured changes in joint capacitance and dissipation factor are useful because they are related to the water absorption rate of the joint material. Water permeating an insulating barrier increases its capacitance and its progress can be measured through the use of a suitable impedance bridge.

1. Scope

1.1 This test method describes determination of the comparative corrosion preventative characteristics of materials used for applications to joints, couplings, irregular fittings, and patched areas in coated pipelines. The test method is applicable to materials whose principal function is to act as barriers between the pipe surface and surrounding soil environment.

1.2 The test method described employs measurements of leakage current, capacitance, and dissipation factor to indicate changes in the insulating effectiveness of joint and patching materials.

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

1.5 The values stated in SI units to three significant decimals are to be regarded as the standard. The values given in parentheses are for information only.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

G12 Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel


Keywords

capacitance; coating; current; dissipation factor; fittings; immersion; joint; leakage; patches; pipeline; resistance;


ICS Code

ICS Number Code 23.040.01 (Pipeline components in general. Pipelines)


DOI: 10.1520/G0018

ASTM International is a member of CrossRef.

ASTM G18

This book also exists in the following packages...

Year Publisher Title Annual Price
VAR
ASTM
 [+] $1,094.15 Buy
VAR
ASTM
 [+] $3,414.42 Buy

Subscription Information

MADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.

 

Some features of MADCAD.com ASTM Standards Subscriptions are:

- Online access: With MADCAD.com’ s web based subscription service no downloads or installations are required. Access ASTM Standards from any browser on your computer, tablet or smart phone.

- Immediate Access: As soon as the transaction is completed, your ASTM Standards Subscription will be ready for access.

 

For any further information on MADCAD.com ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.

 

About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.
GROUPS
X