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ASTM D 6144 : 2017 : REDLINE

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Analysis of AMS (α-Methylstyrene) by Capillary Gas Chromatography
Available format(s)

PDF

Superseded date

01-22-2022

Language(s)

English

Published date

06-01-2017

CONTAINED IN VOL. 06.04, 2018 Specifies the determination of the purity of AMS (alpha-methylstyrene) by gas chromatography.

1.1This test method covers the determination of the purity of AMS (α-methylstyrene) by gas chromatography. Calibration of the gas chromatography system is done by the external standard calibration technique.

1.2This test method has been found applicable to the measurement of impurities such as cumene, 3-methyl-2-cyclopentene-1-one, n-propylbenzene, tert-butylbenzene, sec-butylbenzene, cis-2-phenyl-2-butene, acetophenone, 1-phenyl-1-butene, 2-phenyl-2-propanol, trans-2-phenyl-2-butene, m-cymene, p-cymene, and phenol, which are common to the manufacturing process of AMS. The method has also been found applicable for the determination of para-tertiary-butylcatechol typically added as a stabilizer to AMS. The impurities in AMS can be analyzed over a range of 5 to 800 mg/kg by this method. (See Table 1.) The limit of quantitation for these these impurities averages 4 mg/kg, while the limit of detection averages 1.2 mg/kg. (See Table 1.)

TABLE 1 Summary of Precision Data (mg/kg)

Compound

Repeatability (r)

Reproducibility (R)

Range Studied

Acetone

1.61 + 0.035*Acetone

0.47 + 1.10*Acetone

0.5 – 26

Cumene

−0.46 + 0.031*Cumene

7.88 + 0.19*Cumene

45 – 290

nPropylbenzene (NPB)

2.11 + 0.03*NPB

−7.81 + 0.37*NPB

55 – 195

Phenol

1.84

3.65 + 0.58*Phenol

1 – 40

tertButylbenzene (TBB)

−1.22 + 0.035*TBB

3.63 + 0.087*TBB

150 – 650

secButylbenzene (SBB)

4.23 + 0.019*SBB

21.60 + 0.25*SBB

200 – 765

mCymene

0.31 + 0.035*mCymene

2.34 + 0.35*mCymene

2 – 50

oCymene

1.63

8.00

29 – 31

pCymene

5.12

15.79

10 – 18

cis-2-Phenyl-2-Butene (CPB)

0.17 + 0.030*CPB

5.39 + 0.11*CPB

50 – 225

trans-2-Phenyl-2-Butene (TPB)

1.57

0.54 + 0.20*TPB

19 – 70

1-Phenyl-1-Butene (PB)

4.00 + 0.018*PB

0.17 + 0.19*PB

0.2 – 735

Acetophenone (AP)

–1.09 + 0.15*AP

1.17 + 0.63*AP

15 – 115

para-tert-Butylcatechol (PTBC)

2.21

17.82

10 – 19

2-Methylbenzofuran (MBF)

0.33 + 0.76*MBF

0.75 + 0.60*MBF

1 – 2

2-Phenylpropion aldehyde (PPA)

0.59 + 0.11*PPA

0.29 + 0.23*PPA

1.5 – 15

α-Methylstyrene Oxide (AMSO)

4.61

6.51 + 0.23*AMSO

13 – 32

DimethylBenzyl Alcohol (DMBA)

0.38

0.55 + 2.03*DMBA

0.1 – 1

1.3In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29.

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This standard does not purport to address all 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 8.

1.6This 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.

Committee
D 16
DocumentType
Redline
Pages
6
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM D 6367 : 2017 : REDLINE Standard Specification for AMS (α-Methylstyrene)

CFR 29(PT1910.1000 TO END) : 0 LABOR - OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
ASTM D 3437 : 2015 : REDLINE Standard Practice for Sampling and Handling Liquid Cyclic Products
ASTM D 4790 : 2014 : REDLINE Standard Terminology of Aromatic Hydrocarbons and Related Chemicals
ASTM D 4307 : 2017 : REDLINE Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards

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