HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (12 Oct 2025)

QB/T 2421-1998 PDF English

US$165.00 · In stock · Download in 9 seconds
QB/T 2421-1998: Aluminum and aluminum alloy non-stick cookware
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Obsolete
Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
QB/T 2421-1998English165 Add to Cart 0-9 seconds. Auto-delivery Aluminum and aluminum alloy non-stick cookware Obsolete

Excerpted PDFs (Download full copy in 9 seconds upon purchase)

PDF Preview: QB/T 2421-1998
      

Similar standards

GB/T 1019   GB/T 3606   QB/T 2269   

QB/T 2421-1998: Aluminum and aluminum alloy non-stick cookware

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QBT2421-1998
QB LIGHT INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Classification code. Y 68 File No.. 2310-1999 Aluminum and aluminum alloy non-stick cookware Issued on: DECEMBER 28, 1998 Implemented on: JULY 01, 1999 Issued by. State Light Industry Bureau

Table of Contents

Foreword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Definitions ... 5 4 Product classification ... 6 5 Technical requirements ... 7 6 Test methods ... 12 7 Inspection regulation ... 18 8 Marking, label and instructions for use ... 21 9 Package, transportation and storage ... 22 Annex A ... 24 Annex B ... 25 Annex C ... 28 Annex D ... 29

Foreword

This standard non-equivalently adopts British standard BS 7069-1988 "Specification for cookware". Annexes A, B, C and D are all informative. This standard was proposed by Industry Management Department of State Light Industry Bureau. This standard shall be under the jurisdiction of National Daily Hardware Standardization Center. The main drafting organizations of this standard. Shanghai 1st Aluminum Product Factory, Shenyang Light Industry Research and Design Institute, Shanghai Xingli Hardware Products Co., Ltd., Zhejiang Taizhou ASD Electric Appliances Co., Ltd., Shaoxing Huachang General Factory of Aluminum Products, Non-stick Cookware Branch of Fenglei Brmory Aviation Industry Corporation of Guizhou China, Guangdong Nanhai Hefeng Electrochemical Co., Ltd., Southern General Hardware Factory of Guangdong, Dupont China Holding Co., Ltd. AND Daikin Fluoro Coatings (Shanghai) Co., Ltd. The main drafters of this standard. Ge Qingzhang, Li Yang, Han Yuliang, Chen Helin, Shou Xincheng, Zhou Qingyu, Kong Lingrui and Xiao Huiqxin. This standard shall be interpreted by National Daily Hardware Standardization Center. Aluminum and aluminum alloy non-stick cookware

1 Scope

This standard specifies the definition, product classification, technical requirements, test methods, inspection rules, mark, packaging, transportation and storage requirements of aluminum and aluminum alloy non-stick pan products. This standard is applicable to household aluminum and aluminum alloy non-stick pan products which is made by using aluminum and aluminum alloy as base-body, painting its inner surface with non-stick coating and polishing its outer surface or painting its outer surface with heat resistance paint or other surface treatment such as aluminium enameling.

2 Normative references

The following normative documents contain the provisions, which through reference in this text, constitute the provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties who enter into agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. GB 191-90 Packaging - Pictorial markings for handling of goods GB/T 2828-87 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches) GB/T 2829-87 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of stability for productive process) GB/T 6060.4-88 Roughness comparison specimens - Polished surfaces GB/T 6388-86 Transport package shipping mark GBAT 6543-86 Corrugated box GB/T 6544-86 Corrugated fiberboard GB/T 6739-1996 Determination of film hardness by pencil test GB 11678-89 Hygienic standard for polytetrafluorethylene used as inner coating of food containers GB/T 11679-89 Method for analysis of hygienic standard of polytetrafluorethylene coating Assessment of coating surface by microscope. 3.10 Crack The non-stick coating crack which is observed with microscope.

4 Product classification

4.1 Product category 4.1.1 The products can be classified, according to usage, into boiling pan, frying pan, wok, milk pan and accessories. 4.1.2 The inner product surface is painted with non-stick coating. Non-stick coating is classified into one-layer, double-layer and three-layer system and so on. 4.1.3 The outer surface is treated with painting non-stick coating, aluminium enameling, high temperature resistance paint or polishing and other kinds of treatment methods. 4.2 Product specification 4.2.1 The product specification can be expressed in inner diameter or volume. 4.2.2 When the specification is expressed in inner diameter, the unit shall be centimetre (cm), and even number series has the priority to be used. 4.2.3 When the specification is expressed in volume, the unit shall be litre (L). The value is taken to keep a decimal places. 4.3 Product diagram The typical product structure and components name is shown as Figure 1. Peeling strength is tested according to clause 6.4. The striped coating shall not be greater than 6mm away from the edge of knife scratch. 5.3.6 Scratch resistance Scratch resistance is tested according to clause 6.5. The total length of coating which is not removed shall not be less than 10%. 5.3.7 Non-stick performance Non-stick performance is tested according to clause 6.6. The tested food can be taken out with non-metal scoop from the coating surface without any damage and the coating surface can be cleaned with soft cloth. 5.3.8 Stability after heated and shock cooling It shall be tested according to clause 6.7 and there shall not be bubble or cracks on coating surface. 5.3.9 Alkali resistance It shall be tested according to clause 6.8 and there shall not be peeling or cracks on coating surface. 5.3.10 Acid resistance It shall be tested according to clause 6.9 and there shall not be peeling, cracks. or shrinkage on coating surface. 5.3.11 Saline water corrosion resistance It shall be tested according to clause 6.10 and there shall not be additive defects on coating surface such as bubble, corrosion spot and so on. 5.3.12 Microscopic appearance It shall be tested according to clause 6.24. There shall not be bottom exposure and cracks on the coating when observed with 10x microscope. 5.3.13 Hygienic requirements The hygienic requirements of non-stick coating shall fulfill requirements of GB 11678. 5.4 High temperature resistant paint film 5.4.1 Appearance The paint film surface shall be smooth and have uniform color and there is no blister or peeling. A small amount of micro particles and pores are permitted. The coating shall be completely hot melted. Its surface shall be basically smooth and have uniform color while there is no obvious bubbles, cracks, bottom exposure and peelings. 5.6.2 Thickness It shall be tested according to clause 6.12 and the average coating thickness shall not be less than 10μm. 5.6.3 Adhesion strength It shall be tested according to clause 6.13. There shall not be whole coating stripe peeling within the gridded area. 5.6.4 Hardness It shall be tested according to clause 6.14 and pass 2H pencil test. 5.6.5 Stability after heated and shock cooling. It shall be tested according to clause 6.15 and the coating shall have no bubbles and cracks. 5.6.6 When the non-stick coating is used as outer coating, it shall not be in direct contact with open fire. 5.7 Polished surface The polished surface shall be shine and have uniform color. It shall be tested according to clause 6.16 and the polishing roughness Ra shall not be less than 0.4μm. 5.8 Riveting The coating on rivet surface shall have no peeling and the rivet shall be regular and fit perfectly. 5.9 Water leakage of pan body It shall be tested according to clause 6.21 and there shall have no water leakage on riveting parts. 5.10 Appearance The exposed parts of products and components shall be smooth and have no rags, cracks and sharp edges. 5.11 Decorative figure The decorative figure on outer surface of products shall be clean as well as basically complete. 6.5.2 Hold the pneumatic pen with hand and press it downward to make its second guide roller contact with the coating surface. Move the pneumatic pen evenly at the condition of keeping it vertical to carve a 40mm~50mm long scratch 6.5.3 Observe the scratch visually and the total length of coating which is not removed shall not be less than 10%. 6.5.4 Check that whether the ball-point pen can rotate flexibly before each scratch test is carried out. Checking method. continuous line can be made with the ball-point. Otherwise, the ball-point pen shall be replaced with a new one. 6.6 Non-stick performance test of non-stick coating 6.6.1 Wipe the non-stick coating sur... ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

Tips & Frequently Asked Questions

Question 1: How long will the true-PDF of English version of QB/T 2421-1998 be delivered?

Answer: The full copy PDF of English version of QB/T 2421-1998 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.

Question 2: Can I share the purchased PDF of QB/T 2421-1998_English with my colleagues?

Answer: Yes. The purchased PDF of QB/T 2421-1998_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. www.ChineseStandard.us -- QB/T 2421-1998 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.

How to buy and download a true PDF of English version of QB/T 2421-1998?

A step-by-step guide to download PDF of QB/T 2421-1998_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "QB/T 2421-1998".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3    Steps 4~6    Step 7    Step 8    Step 9