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ASTM C847-06

(Specification)

Standard Specification for Metal Lath

Standard Specification for Metal Lath

ABSTRACT
This specification covers sheet lath, expanded metal lath, diamond mesh, flat and self-furring, and rib metal lath, all with or without backing and designed to be used as a base for gypsum or Portland cement plaster. Metal lath shall be fabricated from cold-rolled carbon steel sheet of commercial quality as specified and galvanized metal lath shall have a G60 coating. Physical properties such as thickness, width, length, and weight shall be specified. Metal lath shall be fabricated from hot-dipped galvanized steel.
SCOPE
1.1 This specification covers sheet lath, expanded metal lath, diamond mesh, flat and self-furring, and rib metal lath, 1/8 and 3/8 in. (3.2 and 9.6 mm), all with or without backing and designed to be used as a base for gypsum or portland cement plaster.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.

General Information

Status
Historical
Publication Date
31-Oct-2006
ICS
77.140.80 - Iron and steel castings
Technical Committee
C11 - Gypsum and Related Building Materials and Systems
Drafting Committee
C11.02 - Specifications and Test Methods for Accessories and Related Products
Current Stage
Ref Project

Relations

Replaces
ASTM C847-04 - Standard Specification for Metal Lath
Effective Date
01-Nov-2006
Replaced By
ASTM C847-09 - Standard Specification for Metal Lath
Effective Date
01-May-2009
Referred By
ASTM C841-23 - Standard Specification for Installation of Interior Lathing and Furring
Effective Date
01-Nov-2006
Referred By
ASTM C1063-23 - Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster
Effective Date
01-Nov-2006
Referred By
ASTM C1780-23a - Standard Practice for Installation Methods for Cement-based Adhered Masonry Veneer
Effective Date
01-Nov-2006
Referred By
ASTM C954-22 - Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
Effective Date
01-Nov-2006
Referred By
ASTM C1002-22 - Standard Specification for Steel Self-Piercing Tapping Screws for Application of Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs
Effective Date
01-Nov-2006

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ASTM C847-06 - Standard Specification for Metal LathASTM C847-06 - Standard Specification for Metal Lath
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ASTM C847-06 - Standard Specification for Metal Lath
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 847 – 06
Standard Specification for
1
Metal Lath
This standard is issued under the fixed designation C847; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* (9.6mm).Thenominalthicknessofself-furringdiamondmesh
5
shall be ⁄16 in. (7.9 mm).
1.1 This specification covers sheet lath, expanded metal
1 4.2 Width—The nominal width of metal lath shall be 27 in.
lath, diamond mesh, flat and self-furring, and rib metal lath, ⁄8
(686 mm).
3
and ⁄8 in. (3.2 and 9.6 mm), all with or without backing and
4.3 Length—The nominal length of metal lath shall be 96
designed to be used as a base for gypsum or portland cement
in. (2438 mm).
plaster.
4.4 Weight—The nominal weight of metal lath shall be as
1.2 The values stated in inch-pound units are to be regarded
follows:
as the standard. The values in parentheses are for information
4.4.1 U.S. Nominal Weights:
only.
2 2
2. Referenced Documents
Type: Weight, lb/yd (kg/m )
2
2.1 ASTM Standards:
Diamond mesh 2.5 (1.4); 3.4 (1.8)
A653/A653M Specification for Steel Sheet, Zinc-Coated
Flat rib 1.8 (1.0); 2.75 (1.5); 3.4 (1.8)
3
⁄8-in. rib 3.4 (1.8); 4.0 (2.1)
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)
Sheet 4.5 (2.4)
by the Hot-Dip Process
4.4.2 Canadian Nominal Weights:
3. Material
2 2
3.1 Metal lath shall be fabricated from cold-rolled carbon
Type: Weight, lb/yd (kg/m )
steel sheet of commercial quality conforming to Specification
Diamond mesh 2.5 (1.4); 3.0 (1.6); 3.4 (1.8)
A653/A653M. Galvanized metal lath shall have a G60
Flat rib 1.8 (1.0); 2.5 (1.4); 3.0 (1.6)
coating in accordance with Specification A653/A653M. 3
⁄8-in. rib 3.0 (1.6); 3.5 (1.9); 4.0 (2.1)
3.2 Backing shall be attached to the lath sufficiently enough
4.5 Permissible Variations—The permissible variations
to prevent accidental removal during shipping, handling, or
shall be as follows:
installation.Attachment of backing shall also allow lapping of
1
4.5.1 Thickness, 6 ⁄64 in. (0.4 mm).
metal to metal and backing to backing, 1 in. (25.4 mm) on the
3
4.5.2 Width, 6 ⁄16 in. (4.8 mm).
1
ends and ⁄2 in. (12.7 mm) on the sides.
1
4.5.3 Length,−0in.,+2 ⁄2 in. (63.5 mm).
4.5.4 Weight, 6 10%.
4. Dimensions, Mass, and Permissible Variations
4.1 Thickness—The nominal thickness of diamond mesh
5. Finish
1
and flat rib metal lath shall be ⁄8 in. (3.2 mm). The nominal
5.1 Metal lath shall be fabricated from hot-dipped galva-
3
thickness of other rib metal lath shall be as designated, ⁄8 in.
nized steel.
6. Inspection
1
This specification is under the jurisdiction of ASTM Committee C11 on
6.1 Inspection of the material shall be agreed upon between
GypsumandRelatedBuildingMaterialsandSystemsandisthedirectresponsibility
the purchaser and supplier as part of the purchase contract.
of Subcommittee C11.02 on Specifications and Test Methods for Accessories a
...

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This specification covers austenitic ductile iron castings for compressors, expanders, pumps, valves, and other pressure-containing parts intended primarily for low-temperature service. The castings covered here are Type D-2M, Class 1, Class 2, Class 3, and Class 4. The castings shall be made in the electric-arc furnace, induction furnace, cupola, or any other furnace which is capable of producing castings. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, silicon, manganese, nickel, chromium, and phosphorus. The castings shall undergo tension tests and impact tests, and shall conform to the following mechanical requirements: tensile strength, yield strength, elongation, Brinell hardness, and Charpy V-notch.
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SCOPE
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1.3 No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting or between the properties of castings and those of a test specimen cast from the same iron (see Appendix X1). However, austempering heat treatment will tend to diminish any differences in mechanical properties.  
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1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.5.1 Exception—Within the text, the SI units are shown in brackets.  
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ASTM A395/A395M-99(2022)(Specification)
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This specification covers standard requirements for ductile iron castings for pressure-retaining parts for use at elevated temperatures. Castings are classified by grades based on mechanical property requirements. These iron castings shall meet the specified values of tensile strength, yield strength, elongation and hardness. Chemical analysis shall be performed wherein the casting shall conform to the required chemical composition for carbon, silicon, and phosphorous. The material shall meet the required tensile properties, hardness, and microstructure. The iron casting shall undergo pressure test after machining. The thickness of any repaired section in relation to the size of the plug used shall be indicated. The minimum radius of repaired sections of cylinders or cones in relation to the size of plug used shall not exceed the prescribed limit. Other defective areas may also be repaired by plugging provided the minimum ligament between plugs in adjacent areas shall not be less than twice the distance from the nearest plug. Three Y-blocks shall be utilized as test coupons. The material shall undergo the following test methods: tension test, chemical analysis, yield strength test, and hardness test.
SCOPE
1.1 This specification covers ductile iron castings for pressure-retaining parts for use at elevated temperatures. Castings of all grades are suitable for use up to 450 °F. For temperatures above 450 °F and up to 650 °F, only Grade 60-40-18 castings are suitable (Note 1).  
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