ASTM E786-81(2024)
(Specification)Standard Specification for Dishes, Evaporating, Platinum
Standard Specification for Dishes, Evaporating, Platinum
ABSTRACT
This specification covers platinum evaporating dishes suitable for water analysis and laboratory use. Platinum evaporating dishes shall be of the following types and capacities: Type I; Type II; and Type III.
SCOPE
1.1 This specification covers platinum evaporating dishes suitable for water analysis and laboratory use.
General Information
- Status
- Published
- Publication Date
- 31-Jan-2024
- Technical Committee
- E41 - Laboratory Apparatus
- Drafting Committee
- E41.01 - Laboratory Ware and Supplies
Relations
- Effective Date
- 01-Feb-2024
Overview
ASTM E786-81(2024), titled Standard Specification for Dishes, Evaporating, Platinum, establishes the requirements for platinum evaporating dishes designed for water analysis and laboratory use. Developed by ASTM International, this standard ensures consistency, quality, and safety of platinum evaporating dishes used in critical analytical procedures. The specification outlines manufacturing, dimensional, material, and marking requirements, supporting compliance with both civil and military procurement standards.
Key Topics
Types and Capacities: ASTM E786-81(2024) classifies platinum evaporating dishes into three types based on form and capacity:
- Type I: Shallow form, no pour-out spout, 100 mL capacity
- Type II: Regular form with pour-out spout, 50 mL capacity
- Type III: 125 mL capacity
Material Composition: Dishes must be made from 99.9% platinum, optionally alloyed with up to 0.4% iridium, ensuring optimal chemical resistance and durability.
Dimensional Requirements: Precise dimensions and allowable variations are specified for each type to maintain uniformity and fit within existing laboratory equipment.
Workmanship: Dishes should be free from scratches, dents, punctures, grease, oil, or other contamination that could impair their function or integrity.
Marking and Traceability: All platinum evaporating dishes must be permanently and legibly marked with the manufacturer's name or trademark, supporting effective identification and traceability.
Inspection and Quality Assurance: Mandatory inspection protocols, defect classifications, and sampling procedures, including adherence to MIL-STD-105, ensure that supplied dishes meet stipulated performance and quality benchmarks.
Applications
Platinum evaporating dishes specified by ASTM E786-81(2024) are essential in:
- Water analysis laboratories: Their high resistance to chemical attack and purity make them indispensable for residue determination, evaporation, and concentration procedures.
- Environmental and analytical testing: Suitable for protocols requiring contamination-free evaporation, especially when accuracy in trace analysis is critical.
- Defense and government procurement: Compliance with ASTM E786 is commonly required for laboratory ware used in federal and military laboratories, supporting consistency and quality in government-operated facilities.
- Research institutions: Reliable for applications demanding the highest standard of chemical inertness and temperature stability.
Related Standards
For comprehensive laboratory compliance, several closely aligned standards should be referenced alongside ASTM E786-81(2024):
- MIL-STD-105: Sampling Procedures and Tables for Inspection by Attributes
- Fed. Std. No. 123: Marking for Shipment (Civil Agencies)
- MIL-STD-1188: Commercial Packaging of Supplies and Equipment
- MIL-STD-129: Marking for Shipment and Storage
ASTM Committee E41 on Laboratory Apparatus oversees this specification, with a focus on laboratory ware and supplies. Adhering to these interconnected standards enhances laboratory safety, traceability, and operational consistency.
By following ASTM E786-81(2024), laboratories, manufacturers, and procurement agencies ensure platinum evaporating dishes meet internationally recognized specifications, supporting accurate water analysis and reliable laboratory results. This standard not only establishes technical performance benchmarks but also promotes safe, efficient, and traceable laboratory operations.
Get Certified
Connect with accredited certification bodies for this standard
ECOCERT
Organic and sustainability certification.
Eurofins Food Testing Global
Global leader in food, environment, and pharmaceutical product testing.
Intertek Bangladesh
Intertek certification and testing services in Bangladesh.
Sponsored listings
Frequently Asked Questions
ASTM E786-81(2024) is a technical specification published by ASTM International. Its full title is "Standard Specification for Dishes, Evaporating, Platinum". This standard covers: ABSTRACT This specification covers platinum evaporating dishes suitable for water analysis and laboratory use. Platinum evaporating dishes shall be of the following types and capacities: Type I; Type II; and Type III. SCOPE 1.1 This specification covers platinum evaporating dishes suitable for water analysis and laboratory use.
ABSTRACT This specification covers platinum evaporating dishes suitable for water analysis and laboratory use. Platinum evaporating dishes shall be of the following types and capacities: Type I; Type II; and Type III. SCOPE 1.1 This specification covers platinum evaporating dishes suitable for water analysis and laboratory use.
ASTM E786-81(2024) is classified under the following ICS (International Classification for Standards) categories: 71.040.20 - Laboratory ware and related apparatus. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM E786-81(2024) has the following relationships with other standards: It is inter standard links to ASTM E786-81(2017). Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM E786-81(2024) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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: E786 − 81 (Reapproved 2024)
Standard Specification for
Dishes, Evaporating, Platinum
This standard is issued under the fixed designation E786; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3.1.1 Type I—Shallow form without pour-out spout. Capac-
ity: 100 mL.
1.1 This specification covers platinum evaporating dishes
3.1.2 Type II—Regular form with pourout spout. Capacity:
suitable for water analysis and laboratory use.
50 mL.
1.2 This international standard was developed in accor-
3.1.3 Type III—125 mL.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Materials
Development of International Standards, Guides and Recom-
4.1 Unless otherwise specified, the platinum dishes shall be
mendations issued by the World Trade Organization Technical
made of 99.9 % platinum alloyed with not more than 0.4 %
Barriers to Trade (TBT) Committee.
iridium.
2. Referenced Documents
5. Dimensions, Mass, and Permissible Variations
2.1 Federal Standards:
5.1 Platinum evaporating dishes shall be either of two types:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
Type I, shallow dish without pourout spout, having slightly
2.2 Military Standards:
tapered sides and a flat bottom having a minimum thickness of
MIL-STD-105 Sampling Procedures and Tables for Inspec-
0.16 mm; or Type II, rounded bottom with a pourout spout
tion by Attributes
conforming to the dimensions in Table 1.
MIL-STD-129 Marking for Shipment and Storage
MIL-STD-1188 Commercial Packaging of Supplies and
6. Workmanship
Equipment
6.1 Platinum evaporating dishes shall be free of defects
3. Classification
(scratches, dents, punctures) and contamination (grease, oil,
3.1 Types and Capacities—Platinum evaporating dishes
foreign matter) that detract from their appearance or that will
shall be of the following types and capacities as specified (see
impair their serviceability.
S2.1).
7. Marking
This specification is under the jurisdiction of ASTM Committee E41 on
7.1 Platinum evaporating dishes shall be permanently and
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
legibly marked with the name or registered trademark of the
Laboratory Ware and Supplies.
manufacturer.
Current edition approved Feb. 1, 2024. Published February 2024. Originally
approved in 1981. Last previous edition approved in 2017 as E786 – 81 (2017).
DOI: 10.1520/E0786-81R24. 8. Keywords
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
8.1 dishes; evaporating; platinum
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
www.dodssp.daps.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E786 − 81 (2024)
TABLE 1 Dimensions of Platinum Evaporating Dishes
Capac- Top Inside Height,
Type Weight, g
ity, mL Diameter, mm mm
I 100 76 ± 6 27.5 ± 7.5 35 ± 5
II 50 54.5 ± 2 27 ± 2 19.5 ± 5
III 125 78 ± 2 35.5 ± 2 42 ± 10
SUPPLEMENTARY REQUIREMENTS
The following supplementary requirements are binding when this specification is used by the
Department of Defense and the Federal Government for the procurement of platinum evaporating
dishes.
TABLE S4.1 Classification of Defects of Platinum Dishes
S1. Sampling
Categories Defects
S1.1 Sampling for nondestructive examination shall be
Critical: none defined.
conducted in accordance with MIL-STD-105.
Major: AQL 4.0 % defective.
101 dimensions incorrect.
S2. Ordering Information
102 damaged (scratches, dents or punctures).
103 contamination (oil, grease, or foreign matter).
S2.1 Procurement documents should specify the following:
104 marking illegible, incorrect, or missing.
S2.1.1 Title, number, and date of this ASTM specification.
S2.1.2 Level of packaging and packing required,
S2.1.3 Type and capacity (when applicable) of evaporating
TABLE S4.2 Classification of Defects of Level A and
Commercial Packaging
dish required, and
S2.1.4 Material if other than as specified. Categories Defects
S2.2 Supplier’s Responsibility—The supplier is responsible Critical: none defined.
Major: AQL 2.5 % defective.
f
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...