HG/T 2749-1996 Acid Brilliant Orange GR (Acid Orange II) HG/T2749-1996 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2749—1996
Acid Brilliant Orange
(Acid Orange I)
Published on April 8, 1996
Implemented on January 1, 1997
Published by the Ministry of Chemical Industry of the People's Republic of China WHG/T2749—1996
This standard is revised on the basis of GB/T1641-82. This standard modifies the writing format of the original standard in accordance with the provisions of GB/T1.1-1993.
The dyeing fastness of Acid Brilliant Orange GR on wool fabrics specified in the standard are all the results of testing using the current national standards. This standard adds the index requirements for granular formulation dyes to the requirements. This standard is adjusted to the industry standard after revision. From the date of implementation of this standard, the original GB/T1641-82 will be abolished. This standard is proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the technical jurisdiction of Shenyang Chemical Research Institute of the Ministry of Chemical Industry. This standard was drafted by Tianjin Dyeing and Chemical Plant No. 3 and Shenyang Chemical Research Institute. The main drafters of this standard are Wang Xiuqin and Bai Jiao. This standard was first issued in April 1965, adjusted from a ministerial standard to a national standard in October 1979, and revised again in 1982. 1
W.bzsoso.cOm1 Scope
Chemical Industry Standard of the People's Republic of China
Acid Brilliant Orange
(Acid Orange I)
HG/T2749—1996
This standard specifies the requirements, sampling, test methods, inspection rules, and marking, packaging, transportation and storage of Acid Brilliant Orange GR.
This standard applies to Acid Brilliant Orange GR prepared by coupling p-aminobenzenesulfonic acid diazo compounds with 2-naphthol in a weakly alkaline medium. Structural formula:
Molecular formula: C16H10N, SNa
Relative molecular mass: 350.33 (according to the 1991 international relative atomic mass) 2 Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When the 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. GB2374-94 General conditions for dyeing determination GB/T2378-80 Determination of color light and intensity of acid dyes GB/T2381-94 Determination of insoluble matter content in dyes GB/T2383-80 Determination of dye sieving fineness GB/T2386-80 Determination of moisture content in dyes and dye intermediates GB3920-83
3 Test method for color fastness to rubbing of textiles
GB392 1—83
3Test method for color fastness of textiles to washing
GB3922—83Test method for color fastness of textiles to perspirationGB/T5713—85Test method for color fastness of textiles to water5Test method for color fastness of textiles to heat pressing (ironing)GB6152—85
GB8427—87
Test method for color fastness of textiles to light—Xenon arc 3 Requirements
3.1 Appearance: Golden yellow uniform powder or granules. Approved by the Ministry of Chemical Industry of the People's Republic of China on April 8, 1996, and implemented on January 1, 1997
W.bzsoso, cOmHG/T2749—1996
3.2 The quality indicators of Acid Brilliant Orange GR shall comply with the requirements of Table 1. Table 1
Quality index
Shade (with standard)
Intensity (for standard), points
Content of impurities insoluble in water, %
Moisture content, %
Fineness (content of residue passing 180μm sieve), %Note:
Fineness of granular dyes is exempt from inspection.
Color fastness of dyeing on wool fabrics shall not be lower than that specified in Table 2. Table 2
(Xenon arc)
1/1 standard dyeing depth is equivalent to 0.5% (owf). 4 Sampling
Color fastness
Perspiration resistance
Approximate~slight
Hot pressing resistance
180℃
Friction resistance
4.1 Sampling is done in batches. The manufacturer takes the products that are mixed evenly at one time as a batch. The number of sampling barrels for each batch shall not be less than VN/2 (N is the number of barrels for each batch of products), and the number of small batch sampling shall not be less than 3 barrels. The packaging of the sampled products must be intact. When sampling, do not allow foreign impurities to fall into the product. Use a probe to sample from the upper, middle and lower parts of the barrel. The total amount of sampled products shall not be less than 200g. After the sampled products are fully mixed, they are divided into two clean and dry brown ground-mouth bottles, and labels are attached, indicating: manufacturer name, product name, batch number, sampling date, location and name of the sampler. One bottle is for inspection, and the other bottle is sealed with paraffin for future reference. 4.2 If one of the indicators in the test results does not meet the requirements of this standard, samples should be taken from twice the amount of packaging for re-testing. If even one indicator does not meet the requirements of this standard, the entire batch of products shall be considered as unqualified. 5 Test method
5.1 Determination of appearance
Visual assessment shall be adopted.
5.2 Determination of dyeing color and intensity
5.2.1 General conditions shall be carried out in accordance with the relevant provisions of GB2374. 2
W.bzsoso.cOmHG/T2749—1996
5.2.2 The dyeing depth is 0.5%; 4g wool (or pure wool fabric) is used for dyeing; the bath ratio is 1:50. 5.2.3 The dye solution is prepared according to the strong acid dyeing method in GB/T2378, and the dye bath is prepared in five 300mL dye vats according to the provisions of Table 3:
Table 3 Dye bath preparation
Dye vat number No.
0.5g/500mL standard sample solution
0.5g/500mL sample solution
100g/L anhydrous sodium sulfate solution
1% sulfuric acid solution
Add water to total volume
5.2.4 Dyeing operation shall be carried out in accordance with the relevant provisions of GB/T23785.2.5 Evaluation of color light and intensity
Perform according to the relevant provisions of GB2374.
5.3 Determination of water-insoluble impurities
Perform according to the provisions of GB/T2381.
5.4 Determination of moisture content
Perform according to the provisions of Chapter 2 of GB/T2386. 5.5 Determination of fineness
Perform according to the provisions of GB/T2383.
5.6 Determination of color fastness of dyeing on wool fabrics The determination of color fastness to rubbing shall be carried out in accordance with the provisions of GB3920. 3
The determination of color fastness to washing shall be carried out in accordance with the provisions of GB3921, using the formulation of test solution 1 and the conditions of method 2. The determination of color fastness to perspiration shall be carried out in accordance with the provisions of GB3922. The determination of color fastness to water shall be carried out in accordance with the provisions of GB/T5713. The determination of color fastness to hot pressing shall be carried out in accordance with the provisions of GB6152, dry pressing at 180℃. The determination of color fastness to light shall be carried out in accordance with the provisions of GB8427. 6 Inspection planningbzxz.net
6.1 Inspection classification
3.1 and 3.2 in this standard are factory inspection items. mL
3.1 to 3.3 in this standard are type inspection items. When encountering one of the six situations described in 6.1.1 of GB1.3, a type inspection shall be carried out. In normal continuous production, the inspection shall be carried out once a year. 6.2 Factory inspection
Acid Brilliant Orange GR shall be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all Acid Brilliant Orange GR shipped out of the factory conforms to the provisions of this standard. Each batch of Acid Brilliant Orange GR shipped out of the factory shall be accompanied by a quality certificate in a certain format. 6.3 User acceptance
The user unit has the right to accept the received Acid Brilliant Orange GR in accordance with the provisions of this standard to inspect whether it conforms to the requirements of this standard.
Wbzsoso.cOn7Marking, packaging, transportation and storage
HG/T2749—1996
7.1 The packaging barrels should be painted with firm and clear markings, indicating: manufacturer name, factory address, product name, registered trademark, standard number, product batch number, production date, gross weight and net weight. 7.2 Each batch of Acid Brilliant Orange GR shipped out of the factory should be accompanied by a quality certificate in a certain format. The content includes: manufacturer name, factory address, product name, batch number, specifications, net weight, and proof that the product quality meets the requirements of this standard and the number of this standard. 7.3 Acid Brilliant Orange GR is packed in iron barrels lined with plastic bags, with a net weight of 30kg per barrel. Other packaging can be negotiated with the user. 7.4 Acid Brilliant Orange GR should be stored in a cool, dry and ventilated place to prevent heat and moisture. Avoid inversion and collision during transportation. W.
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