ASTM B1000-21

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B1000 − 15 B1000 − 21
Standard Practices for
Casting Preparation and Test Procedure of Porcelain
Enamel-lined Pipe, Fittings, and Valves for Use in the
Municipal Wastewater, Sewage, and Water Treatment
Industry
This standard is issued under the fixed designation B1000; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Porcelain enamel (glass) lining applied to the internal surfaces of ductile iron and steel pipe and
fittings have been utilized in the municipal waste water and sewage treatment and water related
industries since the early 1960s as a deterrent to interior clogging in high solids process piping because
of the hardness and significantly improved flow characteristics of the porcelain enameled product. The
coating is applied using the wet process of porcelain enameling, whereby a slurry of wet enamel is
spray applied to the properly prepared surface of the pipe, fittings, or valve component parts. The
water is removed through a drying process, and the product is then heat fused to the metal by heating
in a furnace at approximately 1350°F (733°C)1350 °F (733 °C) for a sufficient time to allow fusing of
the glass material to the ductile iron or steel surface. It has been found to provide far better
performance and longevity in these piping systems than any organic lining material. Porcelain enamel
or glass lining is not intended to be a highly corrosion-resistant, completely pinhole-free lining product
but is utilized for its hardness and flow/slickness characteristics.
1. Scope
1.1 The following procedures and practices are intended to provide guidelines for processing and quality control that will provide
acceptable results for the intended end use, keeping in mind the varying quality of the castings available.
1.2 The recommendations are based on what have been acceptable industry standards and experiences for over 40 years of proven
product usage.
1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
This test method is These practices are under the jurisdiction of ASTM Committee B08 on Metallic and Inorganic Coatings and isare the direct responsibility of
Subcommittee B08.12 on Materials for Porcelain Enamel and Ceramic-Metal Systems.
Current edition approved Nov. 1, 2015April 1, 2021. Published November 2015May 2021. Originally approved in 2015. Last previous edition approved in 2015 as
B1000 – 15. DOI: 10.1520/B1000-15.10.1520/B1000-21.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B1000 − 21
2. Referenced Documents
2.1 ASTM Standards:
D5162 Practice for Discontinuity (Holiday) Testing of Nonconductive Protective Coating on Metallic Substrates
D5965 Test Method for Density of Coating Powders
D7091 Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals
and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals
2.2 NACE and SSPC Standard:
SP0188–2006SSPC-SP 5/NACE No. 1 Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Sub-
stratesWhite Metal Blast Cleaning
2.3 NAPF Standard:
NAPF 500 Surface Preparation Standard for Ductile Iron Pipe and Fittings in Exposed Locations Receiving Special External
Coatings and/or Special Internal Linings
2.4 AWWA Standard:
AWWA C151 Ductile-Iron Pipe, Centrifugally Cast
3. Recommendations Related to Inspection of Incoming Castings for Processing
3.1 Ductile iron pipe should be ordered as a minimum of a thickness Class 53 and be specified as “for glass lining.” Steel pipe
should be ordered according to Table 1.
3.2 All castings received should be supplied bare, without having been previously coated or lined or otherwise exposed internally
to any prior organic lining product.
3.3 The castings should be visiblyvisually inspected for excessive surface irregularities such as pinholes or larger holes, cavities,
sand inclusions, or voids that will not allow for proper coverage of the porcelain enamel lining.
3.4 Any indentations or subsurface defects in the casting should be minor and should not exceed a depth of ⁄8 in. in. (3.2 mm).
Gradual, sloping sides with no undercut edges are permissible.
3.5 Castings should also be inspected for sharp upward protrusions, parting lines or other roughness creating any sharp edges.
Grinding of these areas is permissible.
4. Pre-lining Preparation of Acceptable Castings
4.1 Minor protrusions, parting lines, or roughness may be ground flush with the adjacent internal surfaces.
4.2 Rust, loose scale, or other foreign material should be removed from the surfaces that are to receive porcelain using the
appropriate media and clean, dry, oil-free air. Refer to NAPF 500 500-03-04 Abrasive Blast Cleaning of Ductile Iron Pipe for iron
or NACE/SSPC SP0188–2006 SSPC-SP 5/NACE No. 1 White Metal Blast Cleaning for steel for surface condition requirements.
4.3 Use dry, oil-free air to remove any residual blast media or dust from the surface to be lined with the porcelain.
TABLE 1 Recommended Wall Thickness for Steel Piping
Diameter Minimum Wall
A
10 in. (25 cm) or smaller Schedule 40
A
12 in. (30.5 cm) and larger ⁄8 in. (9.5 mm)
A
Consult Consult with the lining manufacturer engineering for minimum wall
thickness
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annua
...