Some standard content:
Chemical Industry Standard of the People's Republic of China
HG/T2366-92
Dimethyl silicone oil
Published on October 7, 1992
Ministry of Chemical Industry of the People's Republic of China
Standard Exchange Network mw.ti2so8o.ccm Various standard industry resources free download 1993-05-01
Chemical Industry Standard of the People's Republic of China
Dimethyl silicone oil
Subject content and scope of application
HG/T2366-92
This standard specifies the technical requirements, test methods, inspection rules, and requirements for marking, packaging, transportation and storage of dimethyl silicone oil.
This standard applies to dimethyl silicone oil with a kinematic viscosity of 10~10000mm2/s at 25°C 2 Reference Standards
Determination of flash point and fire point of petroleum products Open cup method GB510
Determination of condensation point of petroleum products
GB2895
GB4472
GB5654
GB6488
GB6678
GB6680
GB6740
Unsaturated poly Determination of acid value of ester resin
General rules for determination of density and relative density of chemical productsMeasurement of power frequency relative dielectric constant, dielectric loss factor and volume resistivity of liquid insulating materialsDetermination of refractive index of chemical products
General rules for sampling of chemical products
General rules for sampling of liquid chemical products
Determination of volatile and non-volatile matters in paints
HG/T2363 Test method for kinematic viscosity of silicone oil 3 Product model
The model of dimethyl silicone oil consists of three parts: silicone oil code, methyl code and viscosity specification. Model as shown in the figure, o日
This standard dimethyl silicone oil includes the following viscosity specifications: Viscosity specification
Methyl code
Silicone oil code
10, 20, 50, 100, 200, 315, 400, 500, 800, 1000, 2000, 5000, 10000mm2/s4 Technical requirements
4.1 Appearance
Colorless and transparent liquid, no visible mechanical impurities. 4.2 Physical and chemical properties
The physical and chemical performance technical indicators of dimethyl silicone oil shall comply with the provisions of Table 1. Approved by the Ministry of Chemical Industry of the People's Republic of China on October 7, 1992 and implemented on May 1, 1993
HG/T2366-92
Table 1 Technical indicators of the physical and chemical properties of dimethyl silicone oil Type
Kinematic viscosity (25℃), mm2/s
Viscosity-temperature coefficient
Pour point, ℃
Interior point, ℃
Density (25℃), g/cm
Refractive index (25)
Relative dielectric constant (25℃, 50Hz)
Volatile matter (150℃, 3h), %
Acid value, mgKOH/g
Kinematic viscosity (25℃), mm2/ s
Viscosity-temperature coefficient
Pour point, ℃
Flash point,
Density (25℃), g/cm
Refractive index (25℃)
Relative dielectric constant (25℃, 50Hz)
Volatile matter (150℃, 3h), %
Acid value, mgKOH/g
Kinematic viscosity (25C), mm/s
Viscosity-temperature coefficient
Pour point, ℃| |tt||Flash point, ℃
Density (25℃), nom/cm
Refractive index (25℃)
Relative dielectric constant (25℃, 50Hz)
Volatile matter (150℃, 3h), %
Acid value, mgKOH/g
Superior product
201-10
0.55~0.59
Qualified product
0.931~0.939| |tt||Superior products
201-20
First-class products
0.56~0.60
Qualified products
0.946~0.955
1.3970~1.40101.3900~1.40101.3980~1.40201)3950~1.40502.62~2.68
Superior products
201-50||t t | tt||0.9610.969
1.4000~1.4040/1.400 0~1. 410 0|1.400 5~1. 404 51. 4000~1. 410 02.69~2.75
Superior product
201-200
+Equal product
200±10
0. 58~0. 62
Qualified product|| tt | ~0.973
1.4013~1.40531.4000~1.41001.4013~1.4053/1.4000~1.41002.72~2.78
Standard application excavation and replacement network m.basoo:com Customer standard industry information free download2.72~2.78
Kinematic viscosity (25℃), mm/ s
Viscosity-temperature coefficient
Pour point, ℃
Flash point, ℃
Density (25℃), g/ cm2
Refractive index (25℃)
Relative dielectric constant (25℃, 50Hz)
Volatile matter (150℃, 3h), %
Acid value, mgKOH/g
Kinematic viscosity (25℃), mm2/ s
Viscosity-temperature coefficient
Pour point, ℃
Flash point, ℃
Density (25℃), g / cm
Refractive index (25℃)
Relative dielectric constant (25℃, 50Hz)
Volatile matter (150, 3h), %
Acid value, mgKOH/g
Kinematic viscosity (25℃), mm2/s
Viscosity-temperature coefficient
Pour point, c
Flash point,
Density (25℃), g/ cm2
Refractive index (25℃)
Relative dielectric band number (25℃, 50Hz)
Volatile matter (150℃, 3h), %
Acid value, mgKOH/g
HG/T2366—92
Continued Table 1
201-400
Superior product
400±20
0.58~0.6 2 | | tt | 974
1.4013~1.40531.400 0~1.41001.4013~1.4053/1.4000~1.41002. 72 ~ 2. 78 | | tt | -1000 | |tt |40531.4000~1.410 02.72~2.78
Excellent product
201-2000
2.000±100
0.58~0.62
Qualified product
2.000 ±160
2.72~2.78
Excellent product
201-5000
5000±250
0.59~0.63
Qualified product|| tt||5000±400
0.967~0.975
1.4013~1.4053/1.400 0~1.410 0|1.401 5~1.40551.4010~1.41202.72~2.78
Standard photosensitive membrane was.bcaoao.cm2.73~2.79
Kinematic viscosity (25℃), mm/s||tt ||Viscosity-temperature coefficient
Pour point, ℃
Flash point, ℃
Density (25℃), g/cm2
Refractive index (25℃)|| tt||Relative dielectric constant (25c, 50 Hz)
Volatile matter (150℃, 3h)), %
Acid value, mgKOH/g
Test method
HG/T2366-92||tt| |Continued Table 1
Superior products
201-10000
First-class products
10.000±500
0.59~0.63
0.967~ 0.975
1. 401 5~1. 405 5
2.73~2.79
Qualified products
10G00±800
1.4010~1.4120
5.1 Determination of appearance||tt ||Appearance is measured visually. Pour about 50mL of sample into a clean, dry, colorless and transparent 100mL beaker and observe it under natural light indoors.
5.2 Determination of viscosity
The method specified in HG/T2363 is used for determination. 5.3 Determination of viscosity-temperature coefficient
The method specified in HG/T2363 is used for determination: When the temperature is 38℃ and 99℃ (temperature control accuracy of constant temperature bath ±0.2℃), the viscosity-temperature coefficient is calculated as follows: VTC=1
Wherein: VTC viscosity-temperature coefficient:
V99℃ Kinematic viscosity of dimethyl silicone oil, mm2/s: Kinematic viscosity of dimethyl silicone oil at V238c, mm2/s. The calculated result is rounded to two decimal places, and two parallel determinations are performed. The difference between the two determinations should not be greater than 0.01 The test result is expressed as the arithmetic mean of two test values.
5.4 Determination of pour point
The method specified in GB510 is used for determination. The pour point measured by this method is added with 2°C. as the pour point of the sample. 5.5 Determination of flash point
The method specified in GB267 is used for determination. 5.6 Determination of density
The method specified in Article 2.3.1 of GB4472 is used for determination. The measurement temperature is 25℃. 5.7 Refractive index The determination of
is carried out by the method specified in GB6488. The measuring temperature is 25°C. The refractive index of double distilled water at 25℃ is 1.3325.
Standard exchange network ws.bzsoaovcom5.8 Determination of relative dielectric constant
HG/T236692
Use the method specified in GB5654 5.9 Determination of volatile matter
The method specified in GB6740 is used for determination. The sample container is a beaker with a diameter of about 50 mm and a volume of 50 mL
5.10 Determination of acid value ||tt ||The determination was carried out using the method specified in GB2895, wherein a 2mL alkaline microburette was used as the burette. The conical flask is shaken continuously (without nitrogen): titrated with potassium hydroxide standard titration solution [c (KOH) = 0.01 mol/L), 6 Inspection rules
6.1 With the same raw materials, the same proportion and the same Under the process conditions, one or several samples of the same type of products produced by the same manufacturer and mixed evenly in a mixer at one time are considered a batch.
6.2 The number of sampling units shall be in accordance with the provisions of GB6678. The sampling unit is calculated in packaging barrels. The sampling method shall be carried out in accordance with the provisions of GB6680. For manufacturers, it is allowed to take uniform and representative samples on the production line or packaging line. The sampling volume is twice the inspection volume. 6.3 Each batch of products must be inspected by the manufacturer. The department shall conduct inspection, and the manufacturer shall ensure that all products leaving the factory meet the prescribed technical requirements. Each batch of products shall be accompanied by a quality inspection report. All items in 6.4 of this standard are type inspection items. Appearance in 4.1 and kinematic viscosity, flash point, refractive index, volatile matter and acid value specified in Table 1 in 4.2 are for delivery. Inspection items: the manufacturer shall conduct factory inspection for each batch of products; the viscosity-temperature coefficient, density and pour point shall be inspected at least once every quarter or every 30 batches of products. 6.5 If the user unit needs to inspect the received products, it shall follow the provisions of this standard Acceptance inspection should be carried out within one month of receiving the product.
6.6 If a test result does not meet the requirements of this standard, the same batch of products should be retested with double the number of sampling units, and the grade should be determined based on the retest results.
6.7 When both the supply and demand parties In case of any dispute over product quality, it shall be settled through negotiation between the two parties or arbitrated by the legal quality inspection department. 7 Marking, packaging, transportation and storage
7.1 Marking
The packaging shall be clearly and firmly marked. Indicate the product name, model, quality grade, net weight and manufacturer name, etc. 7.2 Packaging
This product should be packed in a clean, dry, well-sealed galvanized iron drum or plastic drum. Each package should be accompanied by Certificate of conformity, indicating the batch number, production date and number of this standard. 7.3 Transportation
This product should be protected from rain, moisture and sunlight during transportation. This product is non-dangerous.
7.4 Storage
This product should be stored in a ventilated, dry warehouse, away from direct sunlight and fire sources. The storage period is 3 years. If the storage period exceeds the limit, it can be re-inspected according to the provisions of this standard. If it meets the quality requirements, it can still be used.
Standard screen changer.mml.t200/ccm.Additional instructions:
HG/T2366 -92
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China and is under the jurisdiction of the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (TC15/SC4). The center is responsible for drafting this standard, and the main drafters are Wu Xiuhua and Zhao Shuzhen. This standard adopts the U.S. federal standard VV-D-1078B "Polydimethylsiloxane". From the date of implementation of this standard, the former Ministry of Chemical Industry of the People's Republic of China standard HG2~1490-83 "201 Methyl Silicone Oil" Void.
Standard Speed Change Network mm.tag000/com. People's Republic of China
Chemical Industry Standard
Methyl Silicone
HG/T236692
Edit Chemical Industry Standards Editorial Department
(Institute of Standardization, Ministry of Chemical Industry)
Postal Code: 100013
Printed by Institute of Standardization, Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format 880×12301/16 Printing sheet
Word count 11000
First edition in May 1993
First printing in May 1993
Print run 1-500| |tt||Standard exchange micro network w52so.cm various US standard industry data free download teaching HG/T 2366-9279
Kinematic viscosity (25℃), mm/s
Viscosity-temperature coefficient
Pour point, ℃
Flash point, ℃
Density (25℃), g/cm2
Refractive index (25℃)
Relative dielectric constant (25c, 50Hz)
Volatile matter (150℃, 3h)), %
Acid value, mgKOH/g
Test method
HG/T2366-92
Continued Table 1
Superior quality
201-10000
First quality
10.000±500
0.59~0.63
0.967~0.975
1. 401 5~1. 405 5
2.73~2.79
Qualified products
10G00±800
1.4010~1.4120
5.1 Determination of appearance
The appearance shall be determined visually. Pour about 50mL of sample into a clean, dry, colorless and transparent 100mL beaker and observe it under natural light indoors.
5.2 Determination of viscositybzxz.net
The method specified in HG/T2363 is used for determination. 5.3 Determination of viscosity-temperature coefficient
The method specified in HG/T2363 is used for determination: Among them, the measurement temperature is 38℃ and 99℃ (the temperature control accuracy of the constant temperature bath is ±0.2℃), and the viscosity-temperature coefficient is calculated as follows: VTC=1
Wherein: VTC viscosity-temperature coefficient:
V99℃ kinematic viscosity of dimethyl silicone oil, mm2/s: V238c kinematic viscosity of dimethyl silicone oil, mm2/s. The calculation result is rounded to two decimal places, and two parallel measurements are carried out. The difference between the two measurements should not be greater than 0.01. The measurement result is expressed as the arithmetic mean of the two measured values.
5.4 Determination of pour point
The method specified in GB510 is used for determination. The pour point measured by this method plus 2℃C is taken as the pour point of the sample. 5.5 Determination of flash point
The method specified in GB267 is used for determination. 5.6 Determination of density
The method specified in Article 2.3.1 of GB4472 is used for determination. The determination temperature is 25°C. 5.7 Determination of refractive index
The method specified in GB6488 is used for determination. The determination temperature is 25°C. The refractive index of double distilled water at 25℃ is 1.3325.
Standard exchange network ws.bzsoaovcom5.8 Determination of relative dielectric constant
HG/T236692
The method specified in GB5654 is used for determination. 5.9 Determination of volatile matter
The method specified in GB6740 is used for determination. Among them, the sample container uses a beaker with a diameter of about 50mm and a volume of 50mL.
5.10 Determination of acid value
The method specified in GB2895 is used for determination. Among them, the burette uses a 2mL alkaline microburette. The conical flask is titrated with potassium hydroxide standard titration solution [c (KOH) = 0.01 mol/L) while shaking continuously (without nitrogen). 6 Inspection rules
6.1 Under the same raw materials, the same proportion and the same process conditions, one or several swatches of the same model products produced by the same manufacturer and mixed evenly in a mixer at one time are considered a batch.
6.2 The number of sampling units shall be in accordance with the provisions of GB6678. The sampling unit shall be calculated in packaging barrels. The sampling method shall be in accordance with the provisions of GB6680. For manufacturers, it is allowed to draw uniform and representative samples on the production line or packaging line. The sampling volume is twice the inspection volume. 6.3 Each batch of products must be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the specified technical requirements. Each batch of products shall be accompanied by a quality inspection report. 6.4 All items in the technical requirements of this standard are type inspection items. Appearance in 4.1 and kinematic viscosity, flash point, refractive index, volatile matter and acid value specified in Table 1 in 4.2 are factory inspection items. The manufacturer shall conduct factory inspection on each batch of products; viscosity-temperature coefficient, density and pour point shall be inspected at least once every quarter or every 30 batches of products. 6.5 If the user unit needs to inspect the received products, it shall be carried out in accordance with the provisions of this standard. Acceptance inspection shall be carried out within one month of receiving the product.
6.6 If a test result does not meet the requirements of this standard, the same batch of products should be sampled and retested with double the number of sampling units, and the grade should be determined by the retest results.
6.7 When the supply and demand parties have disputes over product quality, they shall be resolved through negotiation or arbitration by the statutory quality inspection department. 7 Marking, packaging, transportation, storage
7.1 Marking
The package should have clear and firm markings indicating the product name, model, quality grade, net weight and manufacturer name. 7.2 Packaging
This product should be packaged in clean, dry, well-sealed galvanized iron barrels or plastic barrels. Each package should be accompanied by a certificate of conformity indicating the batch number, production date and the number of this standard. 7.3 Transportation
This product should be protected from rain, moisture and sunlight during transportation. This product is non-hazardous.
7.4 Storage
This product should be stored in a ventilated, dry warehouse, avoid direct sunlight, and should be isolated from fire sources. The product has a storage period of 3 years from the date of production. If the storage period exceeds the storage period, it can be re-inspected according to the provisions of this standard. If it meets the quality requirements, it can still be used.
Standard net change.mml.t200/ccm.Additional instructions:
HG/T2366-92
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (TC15/SC4). This standard was drafted by the Chengdu Organic Silicone Application Research Center of the Ministry of Chemical Industry. The main drafters of this standard are Wu Xiuhua and Zhao Shuzhen. This standard adopts the U.S. federal standard VV-D-1078B "Polydimethylsiloxane". From the date of implementation of this standard, the former standard HG2~1490-83 "201 Methyl Silicone Oil" issued by the Ministry of Chemical Industry of the People's Republic of China will be invalid.
Standard Speed Change Network mm.tag000/com. People's Republic of China
Chemical Industry Standards
Methyl Silicone
HG/T236692
Editor Chemical Industry Standards Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing Chemical Industry Standardization Research Institute
Copyright reserved and no reproduction
Format 880×12301/16 Printing Sheet
Word Count 11000
First Edition in May 1993
First Printing in May 1993
Print Count 1-500
Standard Speed Change Network w52so.cm All American Standard Industry Materials Free Download HG/ T 2366-9279
Kinematic viscosity (25℃), mm/s
Viscosity-temperature coefficient
Pour point, ℃
Flash point, ℃
Density (25℃), g/cm2
Refractive index (25℃)
Relative dielectric constant (25c, 50Hz)
Volatile matter (150℃, 3h)), %
Acid value, mgKOH/g
Test method
HG/T2366-92
Continued Table 1
Superior quality
201-10000
First quality
10.000±500
0.59~0.63
0.967~0.975
1. 401 5~1. 405 5
2.73~2.79
Qualified products
10G00±800
1.4010~1.4120
5.1 Determination of appearance
The appearance shall be determined visually. Pour about 50mL of sample into a clean, dry, colorless and transparent 100mL beaker and observe it under natural light indoors.
5.2 Determination of viscosity
The method specified in HG/T2363 is used for determination. 5.3 Determination of viscosity-temperature coefficient
The method specified in HG/T2363 is used for determination: Among them, the measurement temperature is 38℃ and 99℃ (the temperature control accuracy of the constant temperature bath is ±0.2℃), and the viscosity-temperature coefficient is calculated as follows: VTC=1
Wherein: VTC viscosity-temperature coefficient:
V99℃ kinematic viscosity of dimethyl silicone oil, mm2/s: V238c kinematic viscosity of dimethyl silicone oil, mm2/s. The calculation result is rounded to two decimal places, and two parallel measurements are carried out. The difference between the two measurements should not be greater than 0.01. The measurement result is expressed as the arithmetic mean of the two measured values.
5.4 Determination of pour point
The method specified in GB510 is used for determination. The pour point measured by this method plus 2℃C is taken as the pour point of the sample. 5.5 Determination of flash point
The method specified in GB267 is used for determination. 5.6 Determination of density
The method specified in Article 2.3.1 of GB4472 is used for determination. The determination temperature is 25°C. 5.7 Determination of refractive index
The method specified in GB6488 is used for determination. The determination temperature is 25°C. The refractive index of double distilled water at 25℃ is 1.3325.
Standard exchange network ws.bzsoaovcom5.8 Determination of relative dielectric constant
HG/T236692
The method specified in GB5654 is used for determination. 5.9 Determination of volatile matter
The method specified in GB6740 is used for determination. Among them, the sample container uses a beaker with a diameter of about 50mm and a volume of 50mL.
5.10 Determination of acid value
The method specified in GB2895 is used for determination. Among them, the burette uses a 2mL alkaline microburette. The conical flask is titrated with potassium hydroxide standard titration solution [c (KOH) = 0.01 mol/L) while shaking continuously (without nitrogen). 6 Inspection rules
6.1 Under the same raw materials, the same proportion and the same process conditions, one or several swatches of the same model products produced by the same manufacturer and mixed evenly in a mixer at one time are considered a batch.
6.2 The number of sampling units shall be in accordance with the provisions of GB6678. The sampling unit shall be calculated in packaging barrels. The sampling method shall be in accordance with the provisions of GB6680. For manufacturers, it is allowed to draw uniform and representative samples on the production line or packaging line. The sampling volume is twice the inspection volume. 6.3 Each batch of products must be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the specified technical requirements. Each batch of products shall be accompanied by a quality inspection report. 6.4 All items in the technical requirements of this standard are type inspection items. Appearance in 4.1 and kinematic viscosity, flash point, refractive index, volatile matter and acid value specified in Table 1 in 4.2 are factory inspection items. The manufacturer shall conduct factory inspection on each batch of products; viscosity-temperature coefficient, density and pour point shall be inspected at least once every quarter or every 30 batches of products. 6.5 If the user unit needs to inspect the received products, it shall be carried out in accordance with the provisions of this standard. Acceptance inspection shall be carried out within one month of receiving the product.
6.6 If a test result does not meet the requirements of this standard, the same batch of products should be sampled and retested with double the number of sampling units, and the grade should be determined by the retest results.
6.7 When the supply and demand parties have disputes over product quality, they shall be resolved through negotiation or arbitration by the statutory quality inspection department. 7 Marking, packaging, transportation, storage
7.1 Marking
The package should have clear and firm markings indicating the product name, model, quality grade, net weight and manufacturer name. 7.2 Packaging
This product should be packaged in clean, dry, well-sealed galvanized iron barrels or plastic barrels. Each package should be accompanied by a certificate of conformity indicating the batch number, production date and the number of this standard. 7.3 Transportation
This product should be protected from rain, moisture and sunlight during transportation. This product is non-hazardous.
7.4 Storage
This product should be stored in a ventilated, dry warehouse, avoid direct sunlight, and should be isolated from fire sources. The product has a storage period of 3 years from the date of production. If the storage period exceeds the storage period, it can be re-inspected according to the provisions of this standard. If it meets the quality requirements, it can still be used.
Standard net change.mml.t200/ccm.Additional instructions:
HG/T2366-92
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (TC15/SC4). This standard was drafted by the Chengdu Organic Silicone Application Research Center of the Ministry of Chemical Industry. The main drafters of this standard are Wu Xiuhua and Zhao Shuzhen. This standard adopts the U.S. federal standard VV-D-1078B "Polydimethylsiloxane". From the date of implementation of this standard, the former standard HG2~1490-83 "201 Methyl Silicone Oil" issued by the Ministry of Chemical Industry of the People's Republic of China will be invalid.
Standard Speed Change Network mm.tag000/com. People's Republic of China
Chemical Industry Standards
Methyl Silicone
HG/T236692
Editor Chemical Industry Standards Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing Chemical Industry Standardization Research Institute
Copyright reserved and no reproduction
Format 880×12301/16 Printing Sheet
Word Count 11000
First Edition in May 1993
First Printing in May 1993
Print Count 1-500
Standard Speed Change Network w52so.cm All American Standard Industry Materials Free Download HG/ T 2366-922℃), the viscosity-temperature coefficient is calculated as follows: VTC=1
Wherein: VTC viscosity-temperature coefficient:
V99℃ kinematic viscosity of dimethyl silicone oil, mm2/s: V238c kinematic viscosity of dimethyl silicone oil, mm2/s. The calculation result is rounded to two decimal places, and two parallel measurements are carried out. The difference between the two measurements should not be greater than 0.01. The measurement result is expressed as the arithmetic mean of the two measured values.
5.4 Determination of pour point
The method specified in GB510 is used for determination. The pour point measured by this method plus 2℃C is used as the pour point of the sample. 5.5 Determination of flash point
The method specified in GB267 is used for determination, 5.6 Determination of density
The method specified in Article 2.3.1 of GB4472 is used for determination. The measurement temperature is 25℃, 5.7 Determination of refractive index
The method specified in GB6488 is used for determination. The measuring temperature is 25°C. The refractive index of double distilled water at 25°C is 1.3325.
Standard exchange network ws.bzsoaovcom5.8 Determination of relative dielectric constant
HG/T236692
The method specified in GB5654 is used for determination, 5.9 Determination of volatile matter
The method specified in GB6740 is used for determination. Among them, the sample container uses a beaker with a diameter of about 50mm and a volume of 50mL
5.10 Determination of acid value
The method specified in GB2895 is used for determination. Among them, the burette uses a 2mL basic microburette. The conical flask is titrated with potassium hydroxide standard titration solution [c (KOH) = 0.01 mol/L) while shaking continuously (without nitrogen). 6 Inspection rules
6.1 Under the same raw materials, the same proportion and the same process conditions, one or several swatches of the same model products produced by the same manufacturer and mixed evenly in a mixer at one time are considered a batch.
6.2 The number of sampling units shall be in accordance with the provisions of GB6678. The sampling unit shall be calculated in packaging barrels. The sampling method shall be in accordance with the provisions of GB6680. For manufacturers, it is allowed to draw uniform and representative samples on the production line or packaging line. The sampling volume is twice the inspection volume. 6.3 Each batch of products must be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the specified technical requirements. Each batch of products shall be accompanied by a quality inspection report. 6.4 All items in this standard are type inspection items. Appearance in 4.1 and kinematic viscosity, flash point, refractive index, volatile matter and acid value specified in Table 1 in 4.2 are factory inspection items. The manufacturer shall conduct factory inspection on each batch of products; viscosity-temperature coefficient, density and pour point shall be inspected at least once every quarter or every 30 batches of products. 6.5 If the user unit needs to inspect the received products, it shall be conducted in accordance with the provisions of this standard. Acceptance inspection shall be conducted within one month of receiving the product.
6.6 If a test result does not meet the requirements of this standard, the same batch of products should be sampled and retested with double the number of sampling units, and the grade should be determined by the retest results.
6.7 When the supply and demand parties have disputes over product quality, they shall be resolved through negotiation or arbitration by the statutory quality inspection department. 7 Marking, packaging, transportation, storage
7.1 Marking
The package should have clear and firm markings indicating the product name, model, quality grade, net weight and manufacturer name. 7.2 Packaging
This product should be packaged in clean, dry, well-sealed galvanized iron barrels or plastic barrels. Each package should be accompanied by a certificate of conformity indicating the batch number, production date and the number of this standard. 7.3 Transportation
This product should be protected from rain, moisture and sunlight during transportation. This product is non-hazardous.
7.4 Storage
This product should be stored in a ventilated, dry warehouse, avoid direct sunlight, and should be isolated from fire sources. The product has a storage period of 3 years from the date of production. If the storage period exceeds the storage period, it can be re-inspected according to the provisions of this standard. If it meets the quality requirements, it can still be used.
Standard net change.mml.t200/ccm.Additional instructions:
HG/T2366-92
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (TC15/SC4). This standard was drafted by the Chengdu Organic Silicone Application Research Center of the Ministry of Chemical Industry. The main drafters of this standard are Wu Xiuhua and Zhao Shuzhen. This standard adopts the U.S. federal standard VV-D-1078B "Polydimethylsiloxane". From the date of implementation of this standard, the former standard HG2~1490-83 "201 Methyl Silicone Oil" issued by the Ministry of Chemical Industry of the People's Republic of China will be invalid.
Standard Speed Change Network mm.tag000/com. People's Republic of China
Chemical Industry Standards
Methyl Silicone
HG/T236692
Editor Chemical Industry Standards Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing Chemical Industry Standardization Research Institute
Copyright reserved and no reproduction
Format 880×12301/16 Printing Sheet
Word Count 11000
First Edition in May 1993
First Printing in May 1993
Print Count 1-500
Standard Speed Change Network w52so.cm All American Standard Industry Materials Free Download HG/ T 2366-922℃), the viscosity-temperature coefficient is calculated as follows: VTC=1
Wherein: VTC viscosity-temperature coefficient:
V99℃ kinematic viscosity of dimethyl silicone oil, mm2/s: V238c kinematic viscosity of dimethyl silicone oil, mm2/s. The calculation result is rounded to two decimal places, and two parallel measurements are carried out. The difference between the two measurements should not be greater than 0.01. The measurement result is expressed as the arithmetic mean of the two measured values.
5.4 Determination of pour point
The method specified in GB510 is used for determination. The pour point measured by this method plus 2℃C is used as the pour point of the sample. 5.5 Determination of flash point
The method specified in GB267 is used for determination, 5.6 Determination of density
The method specified in Article 2.3.1 of GB4472 is used for determination. The measurement temperature is 25℃, 5.7 Determination of refractive index
The method specified in GB6488 is used for determination. The measuring temperature is 25°C. The refractive index of double distilled water at 25°C is 1.3325.
Standard exchange network ws.bzsoaovcom5.8 Determination of relative dielectric constant
HG/T236692
The method specified in GB5654 is used for determination, 5.9 Determination of volatile matter
The method specified in GB6740 is used for determination. Among them, the sample container uses a beaker with a diameter of about 50mm and a volume of 50mL
5.10 Determination of acid value
The method specified in GB2895 is used for determination. Among them, the burette uses a 2mL basic microburette. The conical flask is titrated with potassium hydroxide standard titration solution [c (KOH) = 0.01 mol/L) while shaking continuously (without nitrogen). 6 Inspection rules
6.1 Under the same raw materials, the same proportion and the same process conditions, one or several swatches of the same model products produced by the same manufacturer and mixed evenly in a mixer at one time are considered a batch.
6.2 The number of sampling units shall be in accordance with the provisions of GB6678. The sampling unit shall be calculated in packaging barrels. The sampling method shall be in accordance with the provisions of GB6680. For manufacturers, it is allowed to draw uniform and representative samples on the production line or packaging line. The sampling volume is twice the inspection volume. 6.3 Each batch of products must be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the specified technical requirements. Each batch of products shall be accompanied by a quality inspection report. 6.4 All items in this standard are type inspection items. Appearance in 4.1 and kinematic viscosity, flash point, refractive index, volatile matter and acid value specified in Table 1 in 4.2 are factory inspection items. The manufacturer shall conduct factory inspection on each batch of products; viscosity-temperature coefficient, density and pour point shall be inspected at least once every quarter or every 30 batches of products. 6.5 If the user unit needs to inspect the received products, it shall be conducted in accordance with the provisions of this standard. Acceptance inspection shall be conducted within one month of receiving the product.
6.6 If a test result does not meet the requirements of this standard, the same batch of products should be sampled and retested with double the number of sampling units, and the grade should be determined by the retest results.
6.7 When the supply and demand parties have disputes over product quality, they shall be resolved through negotiation or by arbitration by the statutory quality inspection department. 7 Marking, packaging, transportation, storage
7.1 Marking
The package should have clear and firm markings indicating the product name, model, quality grade, net weight and manufacturer name, etc. 7.2 Packaging
This product should be packaged in clean, dry, well-sealed galvanized iron barrels or plastic barrels. Each package should be accompanied by a certificate of conformity indicating the batch number, production date and the number of this standard. 7.3 Transportation
This product should be protected from rain, moisture and sunlight during transportation. This product is non-hazardous.
7.4 Storage
This product should be stored in a ventilated, dry warehouse, avoid direct sunlight, and should be isolated from fire sources. The product has a storage period of 3 years from the date of production. If the storage period exceeds the storage period, it can be re-inspected according to the provisions of this standard and can still be used if it meets the quality requirements.
Standard net change.mml.t200/ccm.Additional instructions:
HG/T2366-92
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (TC15/SC4). This standard was drafted by the Chengdu Organic Silicone Application Research Center of the Ministry of Chemical Industry. The main drafters of this standard are Wu Xiuhua and Zhao Shuzhen. This standard adopts the U.S. federal standard VV-D-1078B "Polydimethylsiloxane". From the date of implementation of this standard, the former standard HG2~1490-83 "201 Methyl Silicone Oil" issued by the Ministry of Chemical Industry of the People's Republic of China will be invalid.
Standard Speed Change Network mm.tag000/com. People's Republic of China
Chemical Industry Standards
Methyl Silicone
HG/T236692
Editor Chemical Industry Standards Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing Chemical Industry Standardization Research Institute
Copyright reserved and no reproduction
Format 880×12301/16 Printing Sheet
Word Count 11000
First Edition in May 1993
First Printing in May 1993
Print Count 1-500
Standard Speed Change Network w52so.cm All American Standard Industry Materials Free Download HG/ T 2366-924 Storage
This product should be stored in a ventilated and dry warehouse, avoid direct sunlight, and isolate it from fire. The product has a storage period of 3 years from the date of production. If it exceeds the storage period, it can be re-inspected according to the provisions of this standard. If it meets the quality requirements, it can still be used.
Standard change net.mml.t200/ccm.Additional instructions:
HG/T2366-92
This standard is proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (TC15/SC4). This standard was drafted by the Chengdu Organic Silicone Application Research Center of the Ministry of Chemical Industry. The main drafters of this standard are Wu Xiuhua and Zhao Shuzhen. This standard refers to the US Federal Standard VV-D-1078B "Polydimethylsiloxane". From the date of implementation of this standard, the original Ministry of Chemical Industry of the People's Republic of China Standard HG2~1490-83 "201 Methyl Silicone Oil" will be invalid.
Standard Speed Change Network mm.tag000/com. People's Republic of China
Chemical Industry Standards
Methyl Silicone
HG/T236692
Editor Chemical Industry Standards Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing Chemical Industry Standardization Research Institute
Copyright reserved and no reproduction
Format 880×12301/16 Printing Sheet
Word Count 11000
First Edition in May 1993
First Printing in May 1993
Print Count 1-500
Standard Speed Change Network w52so.cm All American Standard Industry Materials Free Download HG/ T 2366-924 Storage
This product should be stored in a ventilated and dry warehouse, avoid direct sunlight, and isolate it from fire. The product has a storage period of 3 years from the date of production. If it exceeds the storage period, it can be re-inspected according to the provisions of this standard. If it meets the quality requirements, it can still be used.
Standard change net.mml.t200/ccm.Additional instructions:
HG/T2366-92
This standard is proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (TC15/SC4). This standard was drafted by the Chengdu Organic Silicone Application Research Center of the Ministry of Chemical Industry. The main drafters of this standard are Wu Xiuhua and Zhao Shuzhen. This standard refers to the US Federal Standard VV-D-1078B "Polydimethylsiloxane". From the date of implementation of this standard, the original Ministry of Chemical Industry of the People's Republic of China Standard HG2~1490-83 "201 Methyl Silicone Oil" will be invalid.
Standard Speed Change Network mm.tag000/com. People's Republic of China
Chemical Industry Standards
Methyl Silicone
HG/T236692
Editor Chemical Industry Standards Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing Chemical Industry Standardization Research Institute
Copyright reserved and no reproduction
Format 880×12301/16 Printing Sheet
Word Count 11000
First Edition in May 1993
First Printing in May 1993
Print Count 1-500
Standard Speed Change Network w52so.cm All American Standard Industry Materials Free Download HG/ T 2366-92
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