Some standard content:
Industry Standard of the People's Republic of China
QB150892
1 Subject Content and Scope of Application
Industry Standard of the People's Republic of China
Dihydromyrcenol
QB 150892
This standard specifies the technical requirements, test methods and inspection rules of dihydromyrcenol. This standard is applicable to the quality analysis and evaluation of dihydromyrcenol obtained by chemical synthesis with bismuth as raw material. This product is used to prepare various cosmetic flavors. 2 Reference Name
QB793 Spice system--test method Standard solution preparation method OB 794
QB 795
QB 798
QB 806
Spices unified test method
Color test method
Spices unified test method Aroma test method
Spices system--test method Refractive index determination method No material system test method
Solubility determination method
Spices unified test methodwww.bzxz.net
Acid value determination method
Spices unified test method
GB 11539
GB11540
3 Product name
Isolated and synthetic flavors
Isolated and synthetic flavors
Ester determination method
General method for gas chromatography analysis with packed columns
And density determination
Chemical name, 2,6-=methyl-phenylene-7-ol-2Molecular formula: CH,0
Structural formula:
Molecular weight: 156.3 (according to the 1987 interatomic weight) 4 Technical requirements
Appearance: Colorless liquid, the color does not exceed the color standard No. 4 of the standard colorimetric solution. 4.11
4.2 Aroma: It has a strong aroma of lemon and mountain dragon. 4.3 Relative density (25/25℃): 0.8300-0.8360. 4.4 Refractive index (20℃): 1.4390~1.4430. Approved by the Ministry of Light Industry of the People's Republic of China on June 8, 1992, and implemented on February 1, 1993
QB 1508-92
4.5 Solubility (25℃): 1 volume of sample dissolves in 4.0~6.5% of 55% alcohol. 4.6 Value 1.0.
4.7 Acid content (calculated as dihydromyrcenol ester): 1.0. 4.8 Alcohol content (calculated as diazolanecenol): 98.0% for superior grade; 295.0% for first grade.
Unless otherwise specified, the reagents used in the test are analytical reagents, and the water is distilled water or water of equivalent purity. 5.1t
For the inspection of color and appearance, see QB794.
5.2For the determination of aroma, see QB79.
5.3For the determination of relative density, see GB11540.
5.4For the determination of refractive index, see QB798.
5.5For the determination of solubility, see QB800
Measure 1 volume of sample in a measuring tube, add 4 volumes of 55% ethanol, and place in a constant temperature water bath at 25℃. When homogenized, it should be clear. Then, add ethanol of the same concentration with a dropper, and keep shaking until 5 volumes are reached. It should still be clear. 5.6For the determination of release value, see QB8.
5.7For the determination of ester content, see QB807.
5.8 Determination of alcohol content (filled gas chromatography internal standard method) 5.8.1 Instruments
Chromatograph, recording instrument
According to Chapter 5 of GB11539.
5.8.1.2 Column
Filled column: 2-1/2 in length, 8 mm in inner diameter.
Stationary phase, ES-3 0.10%. Coated on ChromororhWAwDMCs 60-80 days. 5.8.1.3 Detector
Hydrogen flame ionization detector,
5.8.2 Operating conditions
5.8.2.1 Temperature
Chromatograph: 110℃70～200℃, speed 2c/min. Inlet: 220℃.
Detector: 220℃.
5.8.2.2 Flow rate
Carrier flow rate: nitrogen 25ml/min.
5.8.3 Column efficiency determination
5.8.3.1 Chemical inertness test
The test shall be carried out according to the method specified in CB11539, Section 8.1, and shall meet the requirements. 5.8.3.2 Column efficiency
: The column efficiency shall be determined according to the method specified in GB11539, Section 8.2, and shall meet the requirements. 5.8.4 Determination method
QB1508-92
Standard method: Determine the content of myrcenol according to the method specified in GB11539, Section 10.2. Determination of stress factor: Determine the stress factor according to the method specified in GB11539, Section 10.2.1. Use monoisocyanurate as reference substance, octanoic acid ester as internal standard, and ethanol as solvent. 5.8.5 Repeatability and result expression
The test shall be carried out in accordance with Article 11.4 of GB11539 and shall comply with the provisions. 6 Inspection rules
6.1-Hydroxy-1-benzyl alcohol shall be inspected by the technical inspection department of the non-production factory and shall ensure that all products meet the requirements of this standard. All approved products shall be provided with quality certificates: manufacturer name, product name, trademark, production date, batch number, net weight, and product quality certification number that meets the requirements of this standard. 6.2 The acceptance unit has the right to inspect whether the quality of the received 1-Hydroxy-1-benzyl alcohol meets the requirements of this standard according to the test method and inspection rules stipulated in the standard. Each batch shall be inspected and different batches shall be inspected separately. 6.3 For each batch of packaging units, 2 units shall be selected if the units are less than 100 and 3 units shall be selected if the units are more than 100. After opening the package, check for moisture and impurities first, then vibrate to mix thoroughly, and then use a glass sampling tube to absorb 10ml of the sample, and put it into two clean, dry glass bottles with sand stoppers. Note: manufacturer name, product name, batch number, quantity, sampling date and sampler. One bottle is for inspection, and the other is kept for reference. 6.4 If one of the acceptance results does not meet the requirements of this standard, the manufacturer can be consulted to extract samples for re-inspection. If the new inspection results still have unqualified indicators, the batch of products cannot be accepted. 6.5 When the supply and demand parties have objections to the product quality, they can negotiate to resolve or ask the statutory inspection unit for arbitration, and the cost is borne by either party.
7 Marking, packaging, transportation, storage
71 Dihydrooctyl alcohol should be packed in lead barrels. The product name, manufacturer name, trademark, batch number, weight, ex-factory date and standard number are marked on the package. If the ordering unit has special requirements, a separate agreement can be made. 7.2 Monohydromyrcenol should be placed in a cool, dry and dark place to prevent sunlight and rain, and prevent other impurities from contamination. 7.3 Under the condition of meeting the specified transportation conditions, complete packaging and unsealing, the shelf life of this product is one year. A1 Sample, myrcenol,
QB 1508-92
Appendix A
Typical chromatographic environment
(reference)
A2 Column: Packed, 2-3m long, 8mm inner diameter. Stationary phase: SE-30, 10%. Apply to Chromosarh W AW DMC 60-80 mm. A3 Chromatographic temperature: Linear program temperature increase from 70 to 200°C, rate 2°C/min. Injection temperature, 220°C.
Detector filtration: 220℃
A4 carrier gas flow rate: nitrogen 25ml/min.
A5 detector, nitrogen flame ionization detector. A6 injection volume, 0.2μl.
A7 paper speed: 0.2cm/min.
Dihydromyricenol
Zhaipo Yihao
Nei Quer》
Additional instructions:
QB1508—92
This standard is proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Flavor Standardization Center. This standard was issued by the Flavor Industry Science Research Institute of the Ministry of Light Industry, and Fuzhou Flavor and City Flavor are responsible for the class. The main drafters of this standard are Xu Caijuan, Chen Xian, Li Meixin, Lin Qiqie, and Huang Xuanqing. This standard adopts the Dihydinmyicenol product standard of IFF (International Flavor Co., Ltd. of the United States).
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