Some standard content:
QB/T2285-1997
This standard is revised from GB114281989 "Cold Perm Solution for Hair", and the main revisions are as follows: It is compiled in accordance with GB/T1.1-1993 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presentation of Standards Part 1: Basic Provisions for Standard Compilation";
The relevant parts use the method of citing QB/T1684-1993 "Cosmetics Inspection Rules" and QB/T1685-1993 "Appearance Requirements for Cosmetic Product Packaging" to replace the original technical content; - In the technical requirements, the content of ammonium thioglycolate is increased from 0.0850 to 0.1390 g/ mL was revised to 0.0680~0.1175g/mL. In the test method, the detection method of ammonium thioglycolate content was improved; - The pH value of the curling agent was revised from 8.5~9.5 to an upper limit of 9.8; - The classification and grading regulations were cancelled;
The hydrogen peroxide content of the setting agent was revised from the lower limit of 0.0150g/mL to 0.0150~0.0400g/mL, and the pH value was revised from 2~3 to 4;
The oxidant sodium bromide and its indicators were added:
The net content indicator and test method shall comply with the National Technical Supervision Order [1995] No. 43 "Measurement Supervision Regulations for Quantitative Packaged Goods". This standard was proposed by the Quality Standards Department of the China Light Industry Federation. This standard is under the jurisdiction of the National Cosmetics Standardization Center. The drafting unit of this standard: Tianjin No. 1 Daily Chemical Factory. The main drafters of this standard: Chen Yinlan, Shi Hong, Li Hanying, Ma Yaoqi, Li Hong, Wang Dezhi. This standard shall replace GB11428-1989 "Cold Perm Solution for Hair" from the date of implementation. 1 Scope
Light Industry Standard of the People's Republic of China
Cold Perm Solution for Hair
QB/T2285-1997
This standard specifies the technical requirements, test methods, inspection rules and requirements for marking, packaging, transportation and storage of cold perm solution for hair. This standard is applicable to chemical curling agents for hairdressing cosmetics that are completely prepared with thioglycolic acid as a reducing agent and various emulsifiers, fragrances and other auxiliary materials.
2 Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1623--1979 Sodium perborate
GB7916—1987 Hygienic standards for cosmetics
GB/T 601-1988
Chemical reagent titration analysis Preparation of standard solutions for volumetric analysis GB5296.3-1995 Instructions for use of consumer products General labeling of cosmetics QB/T1684—1993 Cosmetics inspection rules QB/T1685--1993 Requirements for the appearance of cosmetic product packaging 3 Product classification
3.1 Perm solution is divided into the following types according to its dosage form:
3.1.1 Aqueous dosage form (aqueous solution type).
3.1.2 Emulsion type.
3.2 Perm solution is divided into the following types according to its use method:
3.2.1 Hot compress type.
3.2.2 Non-hot compress type.
4 Technical requirements
4.1 Perm lotion consists of two parts: curling agent and setting agent. For curling agent, see Table 1.
Indicator name
Free ammonia content, g/ml
Approved by China Light Industry Association on April 10, 1997
Aqueous agent: clear and transparent liquid (slight precipitation is allowed) Emulsion: emulsion (slight stratification is allowed) Slight ammonia smell
≥0.0050
KANiKAca
Implemented on December 1, 1997
Indicator name
Mercaptoacetic acid content?g/mL
Setting agent, see Table 2.
Fixing agent
Hydrogen peroxide
(solution)
Sodium bromate
(solution)
Sodium perborate
(solid)
QB/T2285-1997
Table 1 (end)
Hot compress type
0.0680~0.1174
Indicator name
Content, g/mL
Content, g/mL
Content, %
Stability, %
4.4 The product hygiene indicators meet the requirements of basic acetic acid concentration in GB7916. 4.5 Net content tolerance (average of 10 bottles)
Non-hot compress type
0.0800~0.1175
Transparent aqueous solution
0.0150~0.0400
Transparent or milky liquid
≥0.0700
Small white crystals
≤100g is ±2g: 101~500g is ±5g: 501~1000g is ±10g; ≥1001g, add 1% loss. 4.6 Packaging appearance requirements
Comply with the relevant provisions of QB/T1685.
5 Test methods
5.1 Appearance: Curling agents and styling agents are observed visually in a bright place. 5.2 Odor: Check by feeling.
5.3.1 Instrument: 1 acidometer, accuracy ±0.02. 5.3.2 The curling agent and the fixing agent are both directly measured by the acidometer. 5.4 Free ammonia content
5.4.1 Reagents
a) Sulfuric acid standard solution: 0.1mol/L, prepared and calibrated according to GB/T601; b) Sodium hydroxide standard solution: 0.1mol/L, prepared and calibrated according to GB/T601; c) Bromocresol green-methyl red (1:1) indicator: 0.1% ethanol solution. 5.4.2 Determination
Pipette 10 ml of the perm solution into a 100 ml volumetric flask, dilute to the mark with deionized water, and then pipette 10 ml into a 300 ml conical flask, add 50 ml of deionized water, accurately add 25 ml of 0.1 mol/L sulfuric acid standard solution, heat to boiling, cool, add 2 to 3 drops of bromocresol green-methyl red mixed indicator, and titrate with 0.1 mol/L sodium hydroxide standard solution until the solution changes from red to green. The free ammonia content X, (g/mL) is calculated according to formula (1). X=(25ci-V·c2)X0.01703
（1）
Wherein: (1——-actual concentration of sulfuric acid standard solution, mol/L, c(1/2H,SO)=0.1mol/L, that is, each liter contains 0.1×49g of sulfuric acid, and the basic unit is half of a sulfuric acid molecule; V—amount of sodium hydroxide standard solution, mL; C2
QB/T2285-1997
actual concentration of sodium hydroxide standard solution, mol/L, cz(Na OH)=0.1mol/L, that is, each liter contains 0.1X40.01g of sodium hydroxide, the basic unit is the sodium hydroxide molecule; 0.01703——the mass of free ammonia equivalent to 1.00mL of sulfuric acid standard solution Lci (1/2H,SO,)=1.000mol/L], the result should be expressed to four decimal places.
5.5 Thioglycolic acid content
5.5.1 Method summary
After pretreatment, cosmetics containing thioglycolic acid and its salts are titrated with a standard iodine solution to determine The reaction is as follows: 2HSCH,COOH+I2→HOOCH,CS-CH,COOH+2HI5.5.2 Reagents
a) Hydrochloric acid (superior purity): g(HCI)=10%; b) Chloroform (superior purity);
c) Sodium thiosulfate solution: 0.1mol/1, preparation and calibration see 4.6 of GB/T601-1988; d) Starch solution: 10g/L, weigh 1g of soluble starch and dissolve it in 100mL of boiling water, add 0.1g of salicylic acid or chlorinated Zinc 0.4g for corrosion protection; e) Iodine standard solution: c (12) = 0.05mol/L, weigh 13.0g iodine and 40g potassium iodide, add 50mL of water, add 3 drops of hydrochloric acid after dissolving, dilute with water to 1000mL, filter and transfer to a brown bottle, and calibrate its accurate concentration with sodium thiosulfate solution as follows: accurately draw 25.00mL of iodine standard solution and place it in an iodine volumetric bottle, add 150mL of pure water, and titrate with 0.1mol/L sodium thiosulfate standard solution (5.5.2c), and add starch solution (5.5.2c) when it is close to the end point.2d) 2mL, continue to titrate until the blue color disappears, and at the same time do a blank test of iodine consumed by water, and calculate the result according to formula (2).
(VV)M
Where: c——concentration of iodine standard solution, mol/L; V——amount of sodium thiosulfate used in titration of iodine standard solution, mL; Vo——amount of sodium thiosulfate used in blank test, mL: M——concentration of sodium thiosulfate standard solution, mol/L. 5.5.3 Instruments
a) Acid burette;
b) Electromagnetic stirrer: Do not wrap the outer layer of the stirring rod with a plastic cover. 5.5.4 Sample pretreatment
Accurately measure 2.0mL of the solution sample in a conical flask, add 20mL of 10% hydrochloric acid and 50mL of water, slowly heat to boiling, cool, add 5mL of chloroform, and stir with an electromagnetic stirrer for 5 minutes as the test solution for later use. 5.5.5 Determination
Use starch solution as an indicator and titrate the test solution with 0.05 mol/L iodine standard solution until the solution turns a stable blue color, which is the end point. 5.5.6 Calculation
Calculate the content of thioglycolic acid and its hydrochloric acid X2 (both calculated as thioglycolic acid) according to formula (3). 92.1×c×V/×2×100
X2(g/100mL)9
1000xV2
Concentration of iodine standard solution, mol/L;
Where ·c
V-consumption of iodine solution after titration; mL; Vz——sampling volume of solution sample; mL; 92.1——molar mass of thioglycolic acid; 2——molecular coefficient of the reaction between iodine and thioglycolic acid (i.e., 1 molecule of iodine reacts with 2 molecules of thioglycolic acid). 5.6 Sodium perborate
Content and stability are determined according to GB/T1623. rIKAONi KAca
5.7 Hydrogen peroxide
5.7.1 Reagents
a) Potassium iodide solution: 5%;
b) Ammonium molybdate solution: 3%;
c) Sulfuric acid solution: 2 mol/L;
QB/T2285--1997www.bzxz.net
d) Sodium thiosulfate standard solution: 0.1 mol/L, prepared and calibrated according to GB/T601. 5.7.2 Determination
Pipette 10 mL of the fixative and dilute to 100 mL in a volumetric flask. Take 10 mL of the above solution and place it in a conical flask. Add 80 mL of deionized water and 20 mL of 2 mol/L sulfuric acid to acidify. Then add 20 mL of 5% potassium iodide solution and 3 drops of ammonium molybdate solution. Titrate with 0.1 mol/L sodium thiosulfate standard solution. When the end point is close, add 2 mL of 1% starch indicator and titrate until the end point is colorless. The content of hydrogen peroxide, X, (g/mL), is calculated according to formula (4). X,=VXcX0.01710
Where: V-the amount of sodium thiosulfate standard solution, mL, (4)
the actual concentration of sodium thiosulfate standard solution, mol/L; c(NazS,O)=0.1mol/L, that is, each liter contains 0.1×158.1g of sodium thiosulfate, and the basic unit is the sodium thiosulfate molecule; 0.01710
the mass of hydrogen peroxide equivalent to 1.00mL of sodium thiosulfate standard solution [c(NazS,O,)=1.000mol/L), g. The result should be expressed to four decimal places.
5.8 Sodium bromate
5.8.1 Reagents
a) Sodium thiosulfate standard solution: 0.1 mol/L, prepared and calibrated according to GB/T601; b) Potassium iodide: analytical grade;
c) Dilute sulfuric acid: 1:10;
d) Starch indicator.
5.8.2 Determination
Use a pipette to draw 10 mL of the fixative into a 100 mL volumetric flask and dilute to the mark with deionized water. Use a pipette to draw 10 mL into a 300 mL iodine volumetric flask, add 40 mL of deionized water, 3 g of potassium iodide and 15 mL of dilute sulfuric acid, cover the bottle cap and place in a cool and dark place for 5 min, add 3 mL of starch indicator, and titrate with 0.1 mol/L sodium thiosulfate until colorless, and perform a blank test. Sodium bromate content X. (g/mL) is calculated according to formula (5).
X,=c(VA-V)X0.02515
（5）
Wherein: c——
actual concentration of sodium thiosulfate standard solution, mol/L, c(NaS,O,)=0.1mol/L, i.e., 0.1X158.1g of sodium thiosulfate per liter, the basic unit is sodium thiosulfate molecule; VA—volume of sodium thiosulfate standard solution consumed by the sample, mL, Vs—volume of sodium thiosulfate standard solution consumed by the blank, mL; 0.02515
6 Inspection rules
mass of sodium acid equivalent to 1.00mL sodium thiosulfate standard solution [c(NazS,O,)=1.000mol/L], g. Execute according to QB/T1684.
7 Marking, packaging, transportation, storage
7.1 Marking
QB/T2285-1997
The marking of large and medium packages shall be in accordance with 3.9.5, 3.10.2.3, 3.10.3.3 of QB/T1685, and the marking of sales packages shall be in accordance with GB5296.3.
7.2 Packaging
According to QB/T1685.
7.3 Transportation and storage
Pay attention to loading and unloading gently during transportation, stack according to the arrows on the box, do not invert, and avoid violent vibration. It should be stored in a warehouse with ventilation and dryness not higher than 38℃, 20cm from the ground and 50cm from the wall when stacking, with a passage in the middle, avoid being close to water sources and heating, and be careful to prevent sun and rain. IKAONiKAca1mol/L, prepared and calibrated according to GB/T601; b) Potassium iodide: analytical grade;
c) Dilute sulfuric acid: 1:10;
d) Starch indicator.
5.8.2 Determination
Pipette 10mL of the fixative into a 100mL volumetric flask and dilute to the mark with deionized water, then pipette 10mL into a 300mL iodine volumetric flask, add 40mL of deionized water, 3g of potassium iodide and 15mL of dilute sulfuric acid, cover the flask and place it in a cool and dark place for 5min, add 3mL of starch indicator, titrate with 0.1mol/L sodium thiosulfate until colorless, and perform a blank test. Sodium bromate content X. (g/mL) is calculated according to formula (5).
X,=c(VA-V)X0.02515
（5）
Wherein: c——
actual concentration of sodium thiosulfate standard solution, mol/L, c(NaS,O,)=0.1mol/L, i.e., 0.1X158.1g of sodium thiosulfate per liter, the basic unit is sodium thiosulfate molecule; VA—volume of sodium thiosulfate standard solution consumed by the sample, mL, Vs—volume of sodium thiosulfate standard solution consumed by the blank, mL; 0.02515
6 Inspection rules
mass of sodium acid equivalent to 1.00mL sodium thiosulfate standard solution [c(NazS,O,)=1.000mol/L], g. Execute according to QB/T1684.
7 Marking, packaging, transportation, storage
7.1 Marking
QB/T2285-1997
The marking of large and medium packages shall be in accordance with 3.9.5, 3.10.2.3, 3.10.3.3 of QB/T1685, and the marking of sales packages shall be in accordance with GB5296.3.
7.2 Packaging
According to QB/T1685.
7.3 Transportation and storage
Pay attention to loading and unloading gently during transportation, stack according to the arrows on the box, do not invert, and avoid violent vibration. It should be stored in a warehouse with ventilation and dryness not higher than 38℃, 20cm from the ground and 50cm from the wall when stacking, with a passage in the middle, avoid being close to water sources and heating, and be careful to prevent sun and rain. IKAONiKAca1mol/L, prepared and calibrated according to GB/T601; b) Potassium iodide: analytical grade;
c) Dilute sulfuric acid: 1:10;
d) Starch indicator.
5.8.2 Determination
Pipette 10mL of the fixative into a 100mL volumetric flask and dilute to the mark with deionized water, then pipette 10mL into a 300mL iodine volumetric flask, add 40mL of deionized water, 3g of potassium iodide and 15mL of dilute sulfuric acid, cover the flask and place it in a cool and dark place for 5min, add 3mL of starch indicator, titrate with 0.1mol/L sodium thiosulfate until colorless, and perform a blank test. Sodium bromate content X. (g/mL) is calculated according to formula (5).
X,=c(VA-V)X0.02515
（5）
Wherein: c——
actual concentration of sodium thiosulfate standard solution, mol/L, c(NaS,O,)=0.1mol/L, i.e., 0.1X158.1g of sodium thiosulfate per liter, the basic unit is sodium thiosulfate molecule; VA—volume of sodium thiosulfate standard solution consumed by the sample, mL, Vs—volume of sodium thiosulfate standard solution consumed by the blank, mL; 0.02515
6 Inspection rules
mass of sodium acid equivalent to 1.00mL sodium thiosulfate standard solution [c(NazS,O,)=1.000mol/L], g. Execute according to QB/T1684.
7 Marking, packaging, transportation, storage
7.1 Marking
QB/T2285-1997
The marking of large and medium packages shall be in accordance with 3.9.5, 3.10.2.3, 3.10.3.3 of QB/T1685, and the marking of sales packages shall be in accordance with GB5296.3.
7.2 Packaging
According to QB/T1685.
7.3 Transportation and storage
Pay attention to loading and unloading gently during transportation, stack according to the arrows on the box, do not invert, and avoid violent vibration. It should be stored in a warehouse with ventilation and dryness not higher than 38℃, 20cm from the ground and 50cm from the wall when stacking, with a passage in the middle, avoid being close to water sources and heating, and be careful to prevent sun and rain. IKAONiKAca
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