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GB/T 4851-2014: Measurement of static shear adhesion for adhesive types (English PDF)

Name: GB/T 4851-2014 PDF English
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SKU: GBT4851-2014
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GB/T 4851-2014: Measurement of static shear adhesion for adhesive types
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GB/T 4851: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivery	Name of Chinese Standard	Status
GB/T 4851-2014	English	150	Add to Cart	0-9 seconds. Auto-delivery	Measurement of static shear adhesion for adhesive types	Valid
GB/T 4851-1998	English	199	Add to Cart	2 days	Test method for holding power of pressure sensitive adhesive tapes	Obsolete
GB/T 4851-1984	English	RFQ	ASK	3 days	Test method for holding power of pressure sensitive adhesive tapes	Obsolete

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Similar standards

GB/T 4851 | GB/T 4852 | GB/T 2943 | GB/T 7122 |

GB/T 4851-2014: Measurement of static shear adhesion for adhesive types

GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.180 Z 38 Replacing GB 4851-1998 Measurement of Static Shear Adhesion for Adhesive Tapes (ISO 29863.2007, Self Adhesive Tapes - Measurement of Static Shear Adhesion, MOD) Issued on: JULY 8, 2014 Implemented on: DECEMBER 1, 2014 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the People's Republic of China.

Foreword... 3 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 5 4 Classification... 6 5 Method A. Measurement of Shear Adhesion to a Vertical Standard Steel Panel... 7 6 Method B. Measurement of Shear Adhesion to a Vertical Panel Covered with NIST SRM 1810A Standard Fibreboard... 12 7 Method C. Measurement of Shear Adhesion to a Vertical Panel Covered with a Fibreboard Agreed upon by the Buyer and Seller... 13 8 Method D. Measurement of Shear Adhesion of Filament Reinforced Tape Applied to a Horizontal Standard Steel Panel... 14 9 Method E. Measurement of Shear Adhesion of Filament Reinforced Tape Applied to a Horizontal Panel Covered with NIST SRM 1810A Standard Fibreboard... 16 10 Method F. Measurement of Shear Adhesion of Filament Reinforced Tape Applied to a Horizontal Panel Covered with a Fibreboard Agreed upon by the Buyer and Seller... 17 11 Method G. Measurement of Shear Adhesion to a Vertical Standard Steel Panel at an Elevated Temperature after 10 min Dwell Time... 18 Annex A (Informative) The Structural Changes between This Standard and ISO 29863.2007... 21 Annex B (Informative) Technical Differences and Their Reasons between This Standard and ISO 29863.2007... 22

Foreword

This Standard was drafted according to the rules given in GB/T 1.1-2009. This Standard replaces GB/T 4851-1998 “Test Method for Holding Power of Pressure Sensitive Adhesive Tapes”. Compared with GB/T 4851-1998, the main technical differences of this Standard are as follows. -- the Standard name is changed into “Measurement of Static Shear Adhesion for Adhesive Tapes”; -- the reference to standard JB/T 7499-1994 “Coated Abrasives - Waterproof Abrasive Paper” is deleted (See Chapter 2 of 1998 Edition); -- the term of “roughness average” is added (See 3.2); -- the types of cleaning agents are changed (See 5.2.2; 4.4.1 of 1998 Edition); -- the cutting method of samples is added (See 5.3.1); -- the requirements for standard test steel panel are changed (See 5.3.2; 4.2 of 1998 Edition); -- the dimensions and mass of rollers are changed (See 5.3.3.1; 4.3.1 and 4.3.3 of 1998 Edition); -- the requirements for test stand are changed (See 5.3.4.1; 4.1 of 1998 Edition); -- the standard test conditions of the laboratory are changed (See 5.4.1; 6.1 of 1998 Edition); -- the standard dimensions of test pieces are changed (See 5.4.2; Chapter 5 of 1998 Edition); -- the cleaning method for steel panel is changed (See 5.5.2; 7.1 of 1998 Edition); -- the number of times of rolling and applying is changed (See 5.5.3.1; 7.2 of 1998 Edition); -- the preparation time of samples and the dwell time before testing are changed (See 5.5.3.1; 7.4 of 1998 Edition); -- the handling of test results is changed (See 5.6; Chapter 8 of 1998); -- the measurement of shear adhesion of filament reinforced tape applied to a horizontal standard steel panel is added (See Chapter 8); -- the measurement of measurement of shear adhesion of filament reinforced tape applied to a horizontal panel covered with NIST SRM 1810A standard fibreboard Measurement of Static Shear Adhesion for Adhesive Tapes

1 Scope

This Standard specifies a series of test methods for the determination of the ability of an adhesive tape to remain adhered under a constant load applied parallel to the surfaces of the tape and substrate. This Standard applies to the measurement of static shear adhesion for adhesive tapes.

2 Normative References

The following documents are essential to the application of this Standard. For dated references, only the dated editions apply to this Standard. For undated references, the latest edition (including all amendments) applies to this Standard. GB/T 2523-2008 Measuring Method of Surface Roughness and Peak Count for Cold-Rolled Metal Sheet (Strip) GB/T 3280-2007 Cold Rolled Stainless Steel Plate Sheet and Strip GB/T 22396 Terminology Relating to Pressure Sensitive Adhesive Products

3 Terms and Definitions

For the purpose of this Standard, the following terms and definitions and those defined by GB/T 22396 apply to this Standard. 3.1 Static shear adhesion It is the resistance of the pressure sensitive adhesive against shear when forces are exerted parallel to the bonding surface. 3.2 Roughness average It is the arithmetic average deviations of surface roughness profile, i.e. the arithmetic average of surface roughness profile offset absolute values within the sampled length. 3.3 Test assembly It is the assembly formed after the adhesive tape to be tested is applied to the test -- diacetone alcohol (4-Hydroxy-4-methyl-2-pentanone), non–residual grade; -- methanol; -- methyl ethyl ketone; -- acetone; -- n-heptane; -- isopropyl alcohol; -- a mixture of n-heptane and a fluorinated hydrocarbon such as refrigerant (suitable when toxicity or flammability restrictions apply). Solvents shall be of general purpose chemical grade and held in a suitable dispensing system. 5.3 Apparatus 5.3.1 Test piece cutter A test piece cutter shall hold two single edge razor blades in parallel planes a precise distance apart, to form a cutter of exact test piece width; two cutters, 12 mm and 24 mm cutting width, shall be available or appropriate alternatives which will not cause edge damage. The precision of the razor blade separation shall be the nominal width ± 0.1 mm. 5.3.2 Stainless steel panels These shall be perfectly flat, at least 125 mm long and 50 mm wide and at least 1,1 mm thick, stainless steel (hereinafter referred to as steel panel) type in accordance with the 06Cr19Ni10 quality defined in GB/T 3280-2007, having a bright annealed finish with a surface roughness (GB/T 2523-2008) of 50 nm ± 25 nm. Panels showing stains, discoloration or many scratches are not acceptable. New panels shall be cleaned prior to use as described in 5.5.2. Between uses the panel test surface shall be protected from scratches and contamination and the panels shall be stored in the conditions described in 5.4.1. 5.3.3 Roller mechanically or hand operated 5.3.3.1 A cylindrical steel roller (hereinafter referred to as roller) 85 mm ± 2.5 mm in diameter and 45 mm ± 1.5 mm in width, covered with rubber approximately 6 mm in thickness, having a Shore A durometer hardness of 80 ± 5. The surface shall be a true cylinder, void of any convex or concave deviations. The mass of the roller shall be 2 kg ± 0.1 kg. 5.3.3.2 No part of the apparatus shall increase the mass of the roller during use. The 5.4.6 Apply the test pieces within 5 minutes after unwinding. 5.5 Procedure 5.5.1 Standard test conditions Standard test conditions shall be the same as 5.4.1 for test pieces and test samples conditioning. 5.5.2 Preparation of the panel 5.5.2.1 Dispense one of the solvents listed in 5.2.2 on to the panel, wiping it to dryness with fresh absorbent cleaning material. Repeat for a total of three washes with this solvent. Final wipe shall be with methyl ethyl ketone or acetone. The panel should be allowed to dry for at least 10 min. Panels not used within 10 h should be recleaned. In order to obtain consistent results a new panel shall be wiped at least ten times with final solvent before use. NOTE. Discard plates showing stains, discoloration, or many scratches. Avoid contacting panel surface with fingers. During storage panel should, be protected from damage or contamination. 5.5.3 Shear adhesion 5.5.3.1 Test piece preparation Centre the test piece at one end of the test panel and apply without added pressure to cover an area of 12 mm ± 0.5 mm by 12 mm ± 0.5 mm, unless other dimensions are specified. The exposed adhesive of the free area of the test piece may be masked. To prevent damaging the test piece by the end of the panel during roll down, place another panel of the same or slightly lesser thickness under the free masked end of the test piece, and in contact with the end of the panel prior to roll down. Roll down the applied test area twice, once in each lengthwise direction. Prepare at least 3 test pieces. Individually prepare each test piece and begin test within 1 min. For tapes other than packaging tapes, other dwell times may be used but sha... ......
Source: Translated/reviewed by www.ChineseStandard.net / Wayne Zheng et al.

Tips & Frequently Asked Questions

1. How long will the true-PDF of English version of GB/T 4851-2014 be delivered?: The full copy PDF of English version of GB/T 4851-2014 can be downloaded in 9 seconds, and it will also be emailed to you in 3 minutes typically (double mechanisms to ensure the delivery reliably), with PDF-invoice.
2. Can I share the purchased PDF of GB/T 4851-2014 (English) with my colleagues?: Yes. The purchased PDF of GB/T 4851-2014 (English) will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.
3. Does the price include tax/VAT?: Yes. Our tax invoice includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries). Please see the List of Avoidance of Double Taxation Agreements (DTAs) signed between Singapore and 100+ countries.
4. Do you accept my currency other than USD?: Yes. Visit www.ChineseStandard.us — GB/T 4851-2014. Click this link and select your country/currency to pay; the exact amount in your currency will be printed on the invoice. The full PDF and invoice will also be downloaded/emailed instantly, following platform Shopify.com's intuitive and self-explained procedure.
5. Should I purchase the latest version GB/T 4851-2014?: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize purchasing the latest version GB/T 4851-2014, even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all earlier versions technically.

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