Coating standard: Hg / T 2246-91 various colors nitropencil primer

Core tips: 1 subject content and scope of application This standard specifies the technical requirements, test methods, inspection rules, marks, packaging, storage and transportation of various colors of nitropencil primer This standard is applicable to filling and priming paint for wooden pencil 2 reference standards GB 1727 general preparation of paint film GB 1735 determination of film heat resistance GB 1764 determination of film thickness GB 3186 sampling of coating products GB 5208 rapid flash point determination Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Home of coatings: 1 subject content and scope of application this standard specifies the technical requirements, test methods, inspection rules, marks, packaging, storage and transportation of various colors of nitropencil primer This standard is applicable to filling and priming paint for wooden pencil 2 reference standard GB 1727 general preparation method of paint film GB 1735 determination of heat resistance of paint film GB 1764 determination of film thickness GB 3186 sampling of paint products GB 5208 determination of flash point of paint rapid balance method GB 6741 preparation method of uniform paint film (rotating paint applicator method) GB 6751 determination of volatile and non-volatile matter of paints and varnishes GB 6753.2 drying test of paint surface small glass ball method 6753.4 determination of paint outflow time ISO Flow cup method GB 9271 standard test panel for paints and varnishes GB 9273 film non marking test GB 9278 temperature and humidity for state adjustment and test of paint samples GB 9761 visual comparison of paints and varnishes GB / T 13452.1 determination of total lead content of paints and varnishes flame atomic absorption spectrometry 3 technical requirements products shall meet the following technical requirements: Items Index paint film color and appearance outflow time (cup 6), s is not less than drying time, min is not more than surface dry non mark (500g) non volatile content,% is not less than heat resistance (45 ± 2 ℃, 30min) flash point, ℃ is not less than total lead content,% is not more than standard sample and its color difference range is 1812050 paint film non crack -100.254 test method 4.1 General test method 4.1.1 sampling shall be carried out as required 4.1.2 the temperature and humidity of the coating sample state adjustment test shall be conducted according to the regulations 4.1.3 standard test plates for paints and varnishes shall be prepared as required 4.1.4 generally, the paint film shall be prepared in accordance with the provisions, and arbitration shall be conducted in accordance with the provisions 4.1.5 the thickness of paint film shall be measured as required 4.2 the color and appearance of paint film shall be evaluated according to gb9761 4.3 according to gb6753.4, the outflow time shall be tested after diluting X-1 nitrolacquer diluent and sample 1:1 (M / M) 4.4 drying time 4.4.1 the surface drying shall be determined according to gb6753.2 4.4.2 no mark shall be measured according to gb9273 4.5 the heat resistance shall be determined according to gb1735 4.6 the content of non-volatile matter shall be determined according to gb6751 4.7 the flash point shall be determined according to gb5208 4.8 the total lead content shall be determined according to the provisions of GB / t13452.1 5 Inspection rule 5.1 all technical requirements listed in this standard are type inspection items The color, appearance, outflow time, drying time, nonvolatile content and heat resistance of the paint film are factory inspection items In normal production, the type inspection shall be carried out once half a year 5.2 the products shall be inspected by the inspection department of the manufacturer in accordance with the provisions of this standard The manufacturer shall ensure that all products delivered shall meet the technical requirements of this standard The product shall be provided with a certificate of conformity If necessary, use instructions and precautions shall be attached 5.3 the receiving department has the right to inspect the products in accordance with the provisions of this standard If it is found that the quality does not meet the technical specifications of this standard, both the supplier and the Demander shall take samples again according to GB 3186 for re inspection If it still does not meet the technical specifications of this standard, the product is unqualified, and the receiving department has the right to return it 5.4 the products shall be sampled according to GB 3186, and the samples shall be divided into two parts, one for sealed storage for one year for future reference, and the other for inspection 5.5 the product packaging, quantity and mark shall be inspected and checked before delivery In case of any damage or leakage of the package, discrepancy in the quantity and non-compliance of the mark, it shall be handled in a timely manner 5.6 in case of any dispute on product quality between the supplier and the demander, the product quality supervision and inspection institution shall conduct arbitration inspection 6 packaging mark shall be in accordance with GB 9750 7 Packaging, storage and transportation 7.1 products shall be stored in clean, dry and sealed containers, with the capacity not more than 95% of the volume When the product is stored, it shall be kept ventilated, dry and protected from direct sunlight It shall be isolated from the fire source and heat source When the temperature is too high in summer, it shall be cooled 7.2 during transportation, products shall be protected from rain and sun exposure, and shall comply with relevant regulations 7.3 under the storage conditions in accordance with 7.1 and 7.2, the effective storage period of the product is one year from the date of production 7.4 if the storage period is exceeded, the inspection can be carried out according to this standard If the result meets the requirements, it can still be used According to safety and health regulations, the paint contains nitrocellulose, ester, ketone and alcohol organic solvent, which is flammable liquid and toxic The construction site shall pay attention to ventilation, take measures such as fire prevention, static electricity prevention and poisoning prevention, and abide by the safety regulations and relevant regulations of coating operation Appendix a construction reference (Reference) A1 coating surface needs to be treated in advance to increase the adhesion and durability of the coating A2 shall be constructed according to the pencil paint construction process, and the diluent can be X-1 nitrocellulose paint diluent When the humidity of A3 is high in rainy days, when the paint film turns white, in addition to adding a small amount of F-1 nitrocellulose paint moisture-proof agent, the indoor temperature and ventilation can also be properly increased A4 matching varieties: Q20-1 nitropencil varnish; q20-3 nitropencil varnish; q20-35 various colors of nitropencil paint ————————Additional note: this standard is proposed by the science and Technology Department of the chemical industry of the people's Republic of China This standard is under the jurisdiction of the National Technical Committee for standardization of coatings and pigments This standard is drafted by Harbin paint factory The main drafters of this standard are Zhang Bingli and Yang Mingyu Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,