This standard applies to products obtained by using skimmed milk as raw material, coagulating the casein with hydrochloric acid or lactic acid, and then filtering, washing, dehydrating and drying the coagulated mass. QB/T 3780-1999 Industrial casein QB/T3780-1999 Standard download decompression password: www.bzxz.net

Classification number: x16
Light Industry Standard of the People's Republic of China
QB/T 3780.-1999
Industrial casein
Published on April 21, 1999
State Bureau of Light Industry
Implemented on April 21, 1999
QB/T3780-1S99
This standard is the original national standard GB5424-1985t1\Industry T Specifications, which was converted into standard number QB/3780--1999 through the National Light Industry Bureau [[99] No. 112 document, and remains unchanged.
This standard is the technical standard for industry management of the State Light Industry Bureau and is under the jurisdiction of the National Dairy Standardization Center. This standard was drafted by the Heilongjiang Provincial Institute of Mineral Products Industry and Haifaner Dairy Factory. Drafters of this document: Zhang Zhenglin, Zhang Baofeng, Li Huanzi, Zhengji TYKANKAea
Light Industry Standard of the People's Republic of China
Industrial casein
Cisein for Industrial uses
/T3780-1999
This standard is used for products obtained by using skimmed milk as raw material, coagulating the protein contained in it with hydrochloric acid or lactic acid, and then filtering the coagulation, washing, dehydrating and drying.
1 Technical requirements
This product is a white granular product with a burnt smell when burned, slightly soluble in water, and soluble in aqueous solutions. 1.1
Industrial casein is divided into special grade, first grade and third grade according to its physical and chemical indicators. 1.2
The sensory indicators of industrial dry casein should meet the requirements of Table 1. t.3
Chemical orange is as shown in Table 2
White,
Maximum pre-tension does not exceed 2Mm
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The legal effect color reaches the blood. No blood is allowed. The yellowing below 5% is also controlled. The maximum is no more than 2 mm. Impurities are allowed. The requirements are as follows: separation, road separation, fat prevention, section separation, degree of war, -T. From the tooth package to the chisel package, no dark yellow color below 10% is allowed. The maximum particle size is no more than 3m. A small amount of impurities are allowed. 1.5 According to the needs of the domestic and foreign markets, we can produce refined Ding industry samples. The quality indicators should be higher than that of special products. The specific requirements can be handled according to the contract.
2 Sampling and Inspection
2.1 Sampling
Approved by the State Light Industry Bureau on April 21, 1999
Implemented on April 21, 1999
QB/T3780-1989
2.1.1 Products should be divided into batches according to production shifts. If continuous production cannot be divided into batches, they should be divided into batches according to production dates. 2.1.2 Products should be numbered in batches and sampled and inspected according to batch numbers. 1/5 of the total number of industrial dry bags should be opened and sampled. A long sampling cutter should be used to take samples from the four corners and the center of the bag. Put them on a plate and evenly pass them. Take 1% of the weight of each bag for inspection. If the total number of bags is less than 50, one less mark will be issued, but the sampling surplus shall not be less than 500. The original sample should be labeled and marked with the following items. , product name, name of the manufacturer and date of manufacture, date of sample receipt, quantity and batch size of the product.
2.2 Inspection procedures
2.2.1 Each batch of samples shall be subjected to microscopic and physical and chemical inspections. 2.2.2 When the finished product leaves the factory, it shall be issued with a quality certificate issued by the inspection department of the factory's chemical laboratory. The certificate shall indicate the product name, quantity, production date, production method, test results and quality grade. 2.3 If the inspection result does not meet the technical requirements, re-sampling may be conducted. The inspection shall be limited to one time. The inspection may be conducted separately for the items that do not meet the standards.
2.3.2 The number of re-samples for the product shall be 1/500, or one time the number of original samples. If all the samples meet the technical requirements, it shall be deemed qualified. 2.4 Inspection method
The inspection method for industrial casein shall be carried out in accordance with GB5425-5 "Inspection method for industrial casein". 3 Packaging and marking
3.1 This product is in large packaging, with a net weight of 30kg, with a bag inside and a cloth bag outside. Other packaging specifications can be arranged according to the contract.
3.2 The outer packaging bag shall be marked with
8. Product name, grade and batch number:
b. Trademark:
d. Production date,
e. Manufacturer name.
Storage and transportation
.1 The finished products should be stored in a well-ventilated warehouse. 4.2 When the finished products are stacked, they should be separated from the surrounding areas by more than 20cm and the height should be more than 10cm to prevent moisture. 4.3 When transporting the product, it should be packed in bags and covered to prevent water from invading.
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