ASTM E1146-23
(Specification)Standard Specification for Muriatic Acid (Technical Grade Hydrochloric Acid)
Standard Specification for Muriatic Acid (Technical Grade Hydrochloric Acid)
ABSTRACT
This specification covers muriatic acid, also known as technical grade hydrochloric acid. This specification includes requirements for muriatic acid available commercially in 20° Baumé and 22° Baumé concentration grades. Muriatic acid shall conform to the following chemical and physical requirements: total acidity of hydrochloric acid; iron content; and Baume gravity. To determine the requirements, a test shall be performed in accordance to the test method.
SCOPE
1.1 This specification covers muriatic acid, also known as technical grade hydrochloric acid.
1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.
1.3 This specification includes requirements for muriatic acid available commercially in 20° Baumé and 22° Baumé concentration grades.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.5 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling, and safety precautions. Consult current OSHA regulations, suppliers’ Safety Data Sheets, and local regulations for all materials used in this specification.
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 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-Mar-2023
- Technical Committee
- D16 - Aromatic, Industrial, Specialty and Related Chemicals
- Drafting Committee
- D16.10 - Acids
Relations
- Effective Date
- 01-Oct-2008
- Effective Date
- 15-Nov-2006
- Effective Date
- 15-Sep-2006
- Effective Date
- 01-May-2006
- Effective Date
- 01-Dec-2004
- Effective Date
- 10-May-2002
- Effective Date
- 10-May-1999
Overview
ASTM E1146-23: Standard Specification for Muriatic Acid (Technical Grade Hydrochloric Acid) provides requirements for muriatic acid-also known as technical grade hydrochloric acid-commercially available in specific concentration grades, namely 20° Baumé and 22° Baumé. The specification covers both chemical and physical properties, including total acidity (as HCl), iron content, and Baumé gravity, defining criteria that muriatic acid must meet to ensure quality, safety, and consistency across industrial and commercial uses.
This standard is essential for manufacturers, suppliers, and end-users involved in the production, distribution, and application of technical grade hydrochloric acid. By adhering to ASTM E1146-23, organizations can ensure product performance, regulatory compliance, and overall workplace safety.
Key Topics
- Concentration Grades: Defines requirements for two standard grades: 20° Baumé and 22° Baumé, specifying their acceptable ranges for total acidity and density (Baumé gravity).
- Chemical and Physical Requirements: Outlines clear limits for total acidity (as HCl, % by mass), maximum allowable iron content (5 ppm max), and Baumé gravity measured at 15.5°C.
- Sampling and Testing: Specifies procedures for sampling using Practice E300 and for testing properties using ASTM methods such as E224.
- Units and Rounding: All values are to be expressed in SI units as standard, with inch-pound values provided for information only. Results are rounded in accordance with ASTM Practice E29.
- Safety Information: Emphasizes the need for reviewing Safety Data Sheets (SDS), current OSHA regulations, and local safety requirements before handling muriatic acid.
- International Recognition: Developed in accordance with internationally recognized principles established by the World Trade Organization (WTO) TBT Committee.
Applications
Muriatic acid that meets ASTM E1146-23 is widely used in a variety of industrial and commercial applications, including:
- Water Treatment: pH control and neutralization processes
- Construction: Cleaning masonry, concrete, and brickwork
- Metal Processing: Pickling and descaling of metals, rust removal
- Chemical Manufacturing: As a raw material or intermediate
- Oil & Gas: Cleaning and maintenance operations
- Pulp & Paper: Bleaching and processing steps
Adhering to this standard ensures consistent product quality, safety in handling, and reliability in end-use applications. By specifying critical parameters and test methods, ASTM E1146-23 helps maintain rigorous quality control throughout the supply chain, reducing the risk of contamination, process inefficiency, or safety incidents.
Related Standards
ASTM E1146-23 references and aligns with several important standards, including:
- ASTM E29 – Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
- ASTM E224 – Test Methods for Analysis of Hydrochloric Acid
- ASTM E300 – Practice for Sampling Industrial Chemicals
Organizations should consult these documents to ensure comprehensive understanding and implementation of the requirements outlined in ASTM E1146-23. Following referenced standards supports accurate sampling, reliable testing, and correct interpretation of results for muriatic acid quality verification.
Keywords: ASTM E1146-23, muriatic acid, technical grade hydrochloric acid, 20° Baumé, 22° Baumé, chemical specification, quality requirements, industrial chemicals, Baumé gravity, acidity testing, iron content, safety data sheets, acidity specification, ASTM standards.
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Frequently Asked Questions
ASTM E1146-23 is a technical specification published by ASTM International. Its full title is "Standard Specification for Muriatic Acid (Technical Grade Hydrochloric Acid)". This standard covers: ABSTRACT This specification covers muriatic acid, also known as technical grade hydrochloric acid. This specification includes requirements for muriatic acid available commercially in 20° Baumé and 22° Baumé concentration grades. Muriatic acid shall conform to the following chemical and physical requirements: total acidity of hydrochloric acid; iron content; and Baume gravity. To determine the requirements, a test shall be performed in accordance to the test method. SCOPE 1.1 This specification covers muriatic acid, also known as technical grade hydrochloric acid. 1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 This specification includes requirements for muriatic acid available commercially in 20° Baumé and 22° Baumé concentration grades. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.5 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling, and safety precautions. Consult current OSHA regulations, suppliers’ Safety Data Sheets, and local regulations for all materials used in this specification. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 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.
ABSTRACT This specification covers muriatic acid, also known as technical grade hydrochloric acid. This specification includes requirements for muriatic acid available commercially in 20° Baumé and 22° Baumé concentration grades. Muriatic acid shall conform to the following chemical and physical requirements: total acidity of hydrochloric acid; iron content; and Baume gravity. To determine the requirements, a test shall be performed in accordance to the test method. SCOPE 1.1 This specification covers muriatic acid, also known as technical grade hydrochloric acid. 1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 This specification includes requirements for muriatic acid available commercially in 20° Baumé and 22° Baumé concentration grades. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.5 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling, and safety precautions. Consult current OSHA regulations, suppliers’ Safety Data Sheets, and local regulations for all materials used in this specification. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 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.
ASTM E1146-23 is classified under the following ICS (International Classification for Standards) categories: 71.060.30 - Acids. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM E1146-23 has the following relationships with other standards: It is inter standard links to ASTM E29-08, ASTM E29-06b, ASTM E29-06a, ASTM E29-06, ASTM E29-04, ASTM E29-02e1, ASTM E29-93a(1999). Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM E1146-23 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: E1146 − 23
Standard Specification for
Muriatic Acid (Technical Grade Hydrochloric Acid)
This standard is issued under the fixed designation E1146; 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* ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This specification covers muriatic acid, also known as
mendations issued by the World Trade Organization Technical
technical grade hydrochloric acid.
Barriers to Trade (TBT) Committee.
1.2 The following applies to all specified limits in this
specification: for purposes of determining conformance with 2. Referenced Documents
this specification, an observed value or a calculated value shall
2.1 ASTM Standards:
be rounded off “to the nearest unit” in the last right hand digit
E29 Practice for Using Significant Digits in Test Data to
used in expressing the specification limit, in accordance with
Determine Conformance with Specifications
the rounding-off method of Practice E29.
E224 Test Methods for Analysis of Hydrochloric Acid
1.3 This specification includes requirements for muriatic
E300 Practice for Sampling Industrial Chemicals
acid available commercially in 20° Baumé and 22° Baumé
3. Requirements
concentration grades.
3.1 Muriatic acid shall conform to this specification:
1.4 The values stated in SI units are to be regarded as
standard. The values given in parentheses are for information
Property 20° Baumé 22° Baumé
Total acidity as HCl, % mass (m/m) 30.71 to 32.93 35.02 to 37.14
only.
Fe, μg/g (ppm) 5 max 5 max
Baumé gravity at 15.5/15.5 °C 19.60 to 20.80 21.90 to 23.00
1.5 Review the current Safety Data Sheets (SDS) for de-
tailed information concerning toxicity, first aid procedures,
4. Sampling
handling, and safety precautions. Consult current OSHA
4.1 Sample muriatic acid in accordance with the appropriate
regulations, suppliers’ Safety Data Sheets, and local regula-
sections of Practice E300 for simple liquids.
tions for all materials used in this specification.
1.6 This standard does not purport to address all of the
4.2 Take composite sample of not less than 1 L.
safety concerns, if any, associated with its use. It is the
5. Test Methods
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
5.1 Determine the requirements as specified in 3.1 using the
mine the applicability of regulatory l
...
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: E1146 − 16 E1146 − 23
Standard Specification for
Muriatic Acid (Technical Grade Hydrochloric Acid)
This standard is issued under the fixed designation E1146; 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*
1.1 This specification covers muriatic acid, also known as technical grade hydrochloric acid.
1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this
specification, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right hand digit used
in expressing the specification limit, in accordance with the rounding-off method of Practice E29.
1.3 This specification includes requirements for muriatic acid available commercially in 20° Baumé and 22° Baumé concentration
grades.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.5 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling, and
safety precautions. Consult current OSHA regulations, suppliers’ Safety Data Sheets, and local regulations for all materials used
in this specification.
1.6 The following safety hazards caveat pertains only to the test methods portion, Section 5: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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 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.
2. Referenced Documents
2.1 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E224 Test Methods for Analysis of Hydrochloric Acid
E300 Practice for Sampling Industrial Chemicals
This specification is under the jurisdiction of ASTM Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsibility of
Subcommittee D16.10 on Acids.
Current edition approved Nov. 1, 2016April 1, 2023. Published November 2016May 2023. Originally approved in 1987. Last previous edition approved in 20082016 as
E1146 – 08. DOI: 10.1520/E1146-16.16. DOI: 10.1520/E1146-23.
For
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