ASTM D3627-96

Standard Test Method for Color of Cresylic Acids ("C" Series Standards)

SCOPE
1.1 This test method covers the determination of the color of cresylic acids. The material under test is compared to arbitrary color standards that are expressed in terms of the "C" series color standards.
1.2 The following applies to all specified limits in this test method for purposes of determining conformance with this standard. An observed value or a calculated value shall be rounded off "to the nearest unit" in the last right hand digit used in expressing limit, in accordance with the rounding off method of Practice E29.  
1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 6.

General Information

• Status: Historical
• Publication Date: 31-Dec-1999
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.02 - Oxygenated Aromatics

Relations

• Replaced By: ASTM D3627-96(2000) - Standard Test Method for Color of Cresylic Acids ("C" Series Standards) (Withdrawn 2005)
• Effective Date: 01-Jan-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3627 – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Color of Cresylic Acids (“C” Series Standards)
This standard is issued under the fixed designation D 3627; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope control and specification purposes by producers and users.
1.1 This test method covers the determination of the color of
4. Apparatus
cresylic acids. The material under test is compared to arbitrary
4.1 Bottles for Color Standards and for Testing, clear and
color standards that are expressed in terms of the “C” series
unblemished, clean, French square, flint glass, flat-bottom,
color standards.
glass-stoppered, 30-mL (1-oz) capacity bottles holding 31 to 33
1.2 The following applies to all specified limits in this test
mL when filled to the neck.
method for purposes of determining conformance with this
standard. An observed value or a calculated value shall be
5. Reagents
rounded off “to the nearest unit” in the last right hand digit used
5.1 Purity of Reagents—Reagent grade chemicals shall be
in expressing limit, in accordance with the rounding off method
used in all tests. Unless otherwise indicated, it is intended that
of Practice E 29.
all reagents shall conform to the specifications of the Commit-
1.3 This standard does not purport to address all of the
tee on Analytical Reagents of the American Chemical Society,
safety concerns, if any, associated with its use. It is the
where such specifications are available. Other grades may be
responsibility of the user of this standard to establish appro-
used provided it is first ascertained that the reagent is of
priate safety and health practices and determine the applica-
sufficiently high purity to permit its use without lessening the
bility of regulatory limitations prior to use. For specific hazard
accuracy of the determination.
statements, see Section 6.
5.2 Purity of Water—Unless otherwise indicated, references
2. Referenced Documents to water shall be understood to mean reagent water conforming
to Specification D 1193, Type IV minimum.
2.1 ASTM Standards:
5.3 Ferric Chloride (FeCl ·6H O).
3 2
D 1193 Specification for Reagent Water
5.4 Cobalt Chloride (CoCl ·6H O).
2 2
D 3852 Practice for Sampling and Handling Phenol and
5.5 Hydrochloric Acid (sp gr 1.19)—Concentrated hydro-
Cresylic Acid
chloric acid (HCl).
E 29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
6. Hazards
2.2 Other Document:
6.1 Consult current OSHA regulations, supplier’s Material
OSHA Regulations, 29 CFR, paragraphs 1910.1000 and
6 Safety Data Sheets, and local regulations for all materials
1910.1200
utilized in this test method.
3. Significance and Use
7. Cleaning of Bottles
3.1 Color is an important characteristic in certain tar acid
7.1 All glassware should be thoroughly cleaned, rinsed with
use applications. This test method may be used for quality
distilled water, and dried.
8. Preparation of Reference Color Standards
This test method is under the jurisdiction of ASTM Committee D-16 on
8.1 Use the following basic stock solutions for preparing the
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.0C on Oxygenated Aromatics.
reference color standards:
Current edition approved June 10, 1996. Published August 1996. Originally
8.1.1 Solution A—Add 75 mL of concentrated HCl to
published as D 3627 – 77. Last previous edition D 3627 – 91.
These color standards have traditionally been known as the Barrett Color-“C”
Series (Barrett Division of Allied Chemical Corp.) and have been in general use
since at least 1957. Reagent Chemicals, American Chemical Society Specifications, American
Annual Book of ASTM Standards, Vol 11.01. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Annual Book of ASTM Standards, Vol 06.04.
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