ASTM E784-89(2022)

Standard Specification for Clamps, Utility, Laboratory, and Holders, Buret and Clamp

ABSTRACT
This specification covers clamps and clamp holders for use in securing laboratory apparatus to support stands. The clamp and clamp holders are classified into types, sizes and classes and are presented in details. Clamps and clamp holders shall be manufactured from aluminum-base alloy, zinc-base alloy, or cast iron. Fittings such as screws, nuts, and rivets for clamps and clamp holders shall be forged aluminum or chemical-resistant alloy for either aluminum-base alloy or zinc-base alloy clamps and clamp holders. Component springs of clamps shall be phosphor bronze or corrosion-resistant steel. Component sleeves of clamps may be rubber, plastic, fiber glass, non-hazardous minerals, or replaceable plastic.
SCOPE
1.1 This specification covers clamps and clamp holders for use in securing laboratory apparatus to support stands.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 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.

General Information

• Status: Published
• Publication Date: 31-Aug-2022
• ICS: 71.040.20 - Laboratory ware and related apparatus
• Technical Committee: E41 - Laboratory Apparatus
• Drafting Committee: E41.01 - Laboratory Ware and Supplies

Relations

• Refers: ASTM B247-20 - Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings
• Effective Date: 01-May-2020

Standards Content (Sample)

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.
Designation:E784 −89(Reapproved 2022)
Standard Specification for
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Clamps, Utility, Laboratory, and Holders, Buret and Clamp
This standard is issued under the fixed designation E784; 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.
1. Scope PPP-B-676 Boxes, Setup
PPP-F-320 Fiberboard, Corrugated and Solid, Sheet Stock
1.1 This specification covers clamps and clamp holders for
(Container Grade) and Cut Shapes
use in securing laboratory apparatus to support stands.
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2.3 Federal Standard:
1.2 The values stated in SI units are to be regarded as the
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
standard. The values given in parentheses are for information
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only. 2.4 Military Specifications:
MIL-P-116 Methods of Preservation-Packaging
1.3 This international standard was developed in accor-
MIL-STD-1188 Commercial Packaging of Supplies and
dance with internationally recognized principles on standard-
Equipment
ization established in the Decision on Principles for the
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Development of International Standards, Guides and Recom-
2.5 Military Standard:
mendations issued by the World Trade Organization Technical
MIL-STD-105 Sampling Procedures and Tables for Inspec-
Barriers to Trade (TBT) Committee.
tion by Attributes
2. Referenced Documents
3. Classification
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2.1 ASTM Standards:
3.1 Types, Sizes, and Classes—The clamp and clamp hold-
A48/A48M Specification for Gray Iron Castings
ers covered by this specification shall be of the types, classes,
A276 Specification for Stainless Steel Bars and Shapes
and sizes as specified in 3.2 – 3.6 (see S3.1).
B30 Specification for Copper Alloys in Ingot and Other
3.2 Type I—Clamp holders:
Remelt Forms
3.2.1 Class 1—Fixed jaw.
B85 Specification for Aluminum-Alloy Die Castings
3.2.2 Class 2—Swivel jaw.
B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy
3.2.3 Class 3—All position jaw.
Foundry and Die Castings
B139/B139M Specification for Phosphor Bronze Rod, Bar, 3.3 Type II—Two-pronged clamps:
and Shapes
3.3.1 Class 1—Fixed, with holder.
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B247 Specification forAluminum andAluminum-Alloy Die 3.3.1.1 Size 1—Small clamp expands to 38 mm (1 ⁄2 in.).
1
Forgings, Hand Forgings, and Rolled Ring Forgings
3.3.1.2 Size 2—Large clamp expands to 64 mm (2 ⁄2 in.).
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2.2 Federal Specifications:
3.3.2 Class 2—Swivel with holder.
1
UU-P-553 Paper, Wrapping, Tissue 3.3.2.1 Size 1—Small clamp expands to 38 mm (1 ⁄2 in.).
1
PPP-B-566 Boxes, Folding, Paper
3.3.2.2 Size 2—Large clamp expands to 64 mm (2 ⁄2 in.).
PPP-B-601 Box, Wood, Cleated-Plywood 3.3.3 Class 3—Swivel, duplex.
PPP-B-621 Box, Wood, Nailed and Lock Corner
3.4 Type III—Extension clamps:
PPP-B-636 Box, Shipping, Fiberboard
3.4.1 Class 1—Two-pronged.
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3.4.1.1 Size 1—Small clamp expands to 38 mm (1 ⁄2 in.).
1
1
3.4.1.2 Size 2—Large clamp expands to 64 mm (2 ⁄2 in.).
This specification is under the jurisdiction of ASTM Committee E41 on
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
3.4.2 Class 2—Three-pronged.
Laboratory Ware and Supplies.
3.4.2.1 Size 1—Small clamp expands to 25 mm (1 in.).
Current edition approved Sept. 1, 2022. Published September 2022. Originally
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3.4.2.2 Size 2—Large clamp expands to 98 mm (3 ⁄8 in.).
approvedin1981.Lastpreviouseditionapprovedin2017asE784 – 89(2017).DOI:
10.1520/E0784-89R22. 3.4.3 Class 3—Universal.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.4.3.1 Size 1—Small clamp expands to 51 mm (2 in.).
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3.4.3.2 Size 2—Large clamp expands to 76 mm (3 in.).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3.5 Type IV—Thermometer clamp, swivel with holder.
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Available from Naval Publications and Forms Center, 5801 Tabor Ave.,
Philadelphia, PA 19120. 3.6 Type V—Clamp, double buret holder.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E784−89(2022)
TABLE 1 Dimensions and Tolerances for Clamps and Clamp Holders
Maximum diameter of opening,
Classification Type of Jaw
Overall length, Tolerance,
mm (in.)
mm (in.) ±mm (± in.)
Type Class Size Clamp Holder Clamp Holder
11 1
I 1 . . ⁄16 (17) 127 (5) 6 ( ⁄4 ) . V
11 1
I 2 . . ⁄16 152 (6) 6 ( ⁄4) . V
11 1
I 3 . . ⁄16 127 (5) 3 ( ⁄8) . V
1 11 1
II 1 1 38.1 (1 ⁄2 ) ⁄16 178 (7) 6 ( ⁄4 )
...