GB/T 9104.8-1988 Test method for industrial stearic acid - Determination of ash content
time:
2024-08-10 01:11:44
- GB/T 9104.8-1988
- Abolished
Standard ID:
GB/T 9104.8-1988
Standard Name:
Test method for industrial stearic acid - Determination of ash content
Chinese Name:
工业硬脂酸试验方法 灰分的测定
Standard category:
National Standard (GB)
-
Date of Release:
1988-04-30 -
Date of Implementation:
1988-10-01 -
Date of Expiration:
2008-12-01
Standard ICS number:
Chemical Technology>>Organic Chemistry>>71.080.40 Organic AcidChina Standard Classification Number:
Chemicals>>Organic Chemical Raw Materials>>G17 General Organic Chemical Raw Materials
alternative situation:
Replaced by GB/T 9104-2008Procurement status:
≈ISO 5466-80
Release date:
1988-04-30Review date:
2004-10-14Drafting Organization:
Daily Chemical Research Institute of the Ministry of Light IndustryFocal point Organization:
National Technical Committee on Standardization of Surfactants and DetergentsPublishing Department:
China Light Industry FederationCompetent Authority:
China Light Industry Federation
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Summary:
GB/T 9104.8-1988 Test method for industrial stearic acid - Determination of ash content GB/T9104.8-1988 Standard download decompression password: www.bzxz.net
Standard contentSome standard content:
National Standard of the People's Republic of Chinabzxz.net
Test methods for industrial stearic acids--Determination of ash
1 Subject content and scope of application
This standard specifies the method for the determination of ash in industrial stearic acid. UDC 668.1.012
：543.06
GB 9104.8—88
This standard applies to the determination of ash in industrial stearic acid produced by pressing or distillation after hydrolysis of animal and vegetable fats. 2 Apparatus
2.1 Porcelain crucible 50mL.
2.2 Dryer.
2.3 High temperature electric furnace
3 Test procedure
It can be heated to at least 1000℃.
Accurately weigh about 10 samples into the porcelain that has been burned to constant weight, heat it on an electric furnace and ignite it to completely carbonize it. Then move it into a high-temperature furnace at 800-850℃, burn it into grayish white (about 0.5h), move it to a dryer to cool for 1.5h, weigh 4 results and calculate
where A
ash content, %
ash content and the mass of the porcelain crucible, g,
the mass of the empty porcelain crucible, 8,
the mass of a sample, 8.
The allowable error of the parallel test results is 0.005%. Additional remarks:
This standard is proposed by the Ministry of Light Industry of the People's Republic of China. m
This standard is under the technical jurisdiction of the Daily Chemical Industry Science Research Institute of the Ministry of Light Industry. This standard is drafted by the Daily Chemical Industry Science Research Institute of the Ministry of Light Industry. This standard is equivalent to the determination of ash content in Japanese Industrial Standard JISK 3331 "Industrial Hardened Oil Fatty Acids". Approved by the Ministry of Light Industry of the People's Republic of China on April 30, 1988 and implemented on October 1, 1988
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.
Test methods for industrial stearic acids--Determination of ash
1 Subject content and scope of application
This standard specifies the method for the determination of ash in industrial stearic acid. UDC 668.1.012
：543.06
GB 9104.8—88
This standard applies to the determination of ash in industrial stearic acid produced by pressing or distillation after hydrolysis of animal and vegetable fats. 2 Apparatus
2.1 Porcelain crucible 50mL.
2.2 Dryer.
2.3 High temperature electric furnace
3 Test procedure
It can be heated to at least 1000℃.
Accurately weigh about 10 samples into the porcelain that has been burned to constant weight, heat it on an electric furnace and ignite it to completely carbonize it. Then move it into a high-temperature furnace at 800-850℃, burn it into grayish white (about 0.5h), move it to a dryer to cool for 1.5h, weigh 4 results and calculate
where A
ash content, %
ash content and the mass of the porcelain crucible, g,
the mass of the empty porcelain crucible, 8,
the mass of a sample, 8.
The allowable error of the parallel test results is 0.005%. Additional remarks:
This standard is proposed by the Ministry of Light Industry of the People's Republic of China. m
This standard is under the technical jurisdiction of the Daily Chemical Industry Science Research Institute of the Ministry of Light Industry. This standard is drafted by the Daily Chemical Industry Science Research Institute of the Ministry of Light Industry. This standard is equivalent to the determination of ash content in Japanese Industrial Standard JISK 3331 "Industrial Hardened Oil Fatty Acids". Approved by the Ministry of Light Industry of the People's Republic of China on April 30, 1988 and implemented on October 1, 1988
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.
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