|
US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 13477.21-2022: Test method for building sealants - Part 21: Determination of color change after laboratory accelerated weathering procedures
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13477.21-2022 | English | 139 |
Add to Cart
|
3 days [Need to translate]
|
Test method for building sealants - Part 21: Determination of color change after laboratory accelerated weathering procedures
| Valid |
GB/T 13477.21-2022
|
PDF similar to GB/T 13477.21-2022
Basic data | Standard ID | GB/T 13477.21-2022 (GB/T13477.21-2022) | | Description (Translated English) | Test method for building sealants - Part 21: Determination of color change after laboratory accelerated weathering procedures | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q24 | | Word Count Estimation | 6,611 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 13477.21-2022: Test method for building sealants - Part 21: Determination of color change after laboratory accelerated weathering procedures
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for building sealants - Part 21.Determination of color change after laboratory accelerated weathering procedures
ICS 91.100.50
CCSQ24
National Standards of People's Republic of China
Test methods for building sealing materials
Part 21.After artificially accelerated weathering
Determination of color change
weathering procedures
State Administration for Market Regulation
Released by the National Standardization Administration
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is part 21 of GB/T 13477 "Test methods for building sealing materials". GB/T 13477 has issued the following
part.
--- Part 1.Provisions for test substrates;
--- Part 2.Determination of density;
--- Part 3.Method for determining the extrudability of sealing materials using standard equipment;
--- Part 4.Determination of extrudability of single-component sealing materials in original packaging;
--- Part 5.Determination of surface dry time;
--- Part 6.Determination of mobility;
--- Part 7.Determination of low temperature flexibility;
--- Part 8.Determination of tensile adhesion;
--- Part 9.Determination of tensile adhesion after immersion in water;
--- Part 10.Determination of fixed elongation adhesion;
--- Part 11.Determination of set-stretch adhesion after immersion in water;
--- Part 12.Determination of adhesion after stretching-compression cycles at the same temperature;
--- Part 13.Determination of adhesion after cold drawing-hot pressing;
--- Part 14.Determination of adhesion after immersion in water and tensile-compression cycles;
--- Part 15.Determination of adhesion after exposure to heat, artificial light through glass and water;
--- Part 16.Determination of compression characteristics;
--- Part 17.Determination of elastic recovery rate;
--- Part 18.Determination of peel adhesion;
--- Part 19.Determination of changes in mass and volume;
--- Part 20.Determination of contamination;
--- Part 21.Determination of color change after artificially accelerated weathering.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Building Materials Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Lightweight and Decorative Building Materials (SAC/TC195).
This document is drafted by. Guangzhou Baiyun Chemical Industry Co., Ltd., Henan Building Materials Research and Design Institute Co., Ltd., Guangzhou Henan Co., Ltd.
Materials Research Institute Co., Ltd., Shanghai Jianke Inspection Co., Ltd., Jianyan Research Institute Testing Center Co., Ltd., Hangzhou Zhijiang Silicone Chemical Co., Ltd.
Company, Zhengzhou Zhongyuan Slander Hi-Tech Co., Ltd., Guangzhou Gaoshi Industrial Co., Ltd.
The main drafters of this document. Zhang Guanqi, Yin Rui, Yi Jun, Li Jian, Liu Ying, Niu Rong, Zeng Rong, Xu Jun, Feng Pei, Hu Xinsong, Zhou Ping, Xing Yuxiu,
Zhang Mengzhen, Gao Jue, Hu Xianyue.
Introduction
Building sealing materials are a type of functional building materials that can withstand joint displacement to achieve airtight and watertight purposes and are embedded in building joints.
It is of great significance to improve the functions of building sealing, energy saving, waterproof, sound insulation and dustproof. In response to the national priority to develop new waterproof seals
The planning outline of sealing materials, standardize product quality, and guide the healthy and orderly development of the product market. From the 1980s to the present, it has gradually established a
China's relatively complete standard system for building sealing materials. GB/T 13477 is an important component of the standard system of building sealing materials.
It is mainly based on the ISO /TC59/SC8 international standard system documents corresponding to the technology, and 20 standards have been issued and implemented.
GB/T 13477 is a basic and universal test method standard to guide the performance testing of building sealant products in my country.
Product standard setters, producers and developers to provide technical support. GB/T 13477 is divided into five categories, classification and the composition of the published and implemented standards
as follows.
--- Test condition class (Part 1), which specifies conditions such as the test substrate.
---Construction performance category (Part 3 ~ Part 6), which specifies the extrudability, pot life, surface dry time, fluidity, and curing characteristics of the product
and other measurement methods.
--- Physical/mechanical properties category (Part 2, Part 7, Part 16, Part 17, Part 19), specifying the density of the product,
Low temperature flexibility, compression properties, elastic recovery rate, mass and volume change, etc. Determination methods.
--- Bonding properties with substrates (Part 8, Part 9, Part 10, Part 11, Part 12, Part 13, Part 13
Part 14, Part 18), specifies the product's tensile adhesion, fixed elongation adhesion, adhesion after immersion, adhesion after tension-compression
Determination methods of adhesion, peel adhesion, adhesion after high/low temperature treatment, etc.
---Durability/Aesthetics (Part 15, Part 20), specifies the artificial weathering resistance, pollution, dust accumulation, appearance of products
Changes, etc. measurement methods.
GB/T 13477.21 is part 21 of this document and belongs to the category of durability/aesthetics. This document refers to foreign advanced standards and stipulates
The method for determining the color change of sealants after artificially accelerated weathering provides a reliable basis for selecting and evaluating the color stability of sealants, which is beneficial to
In order to eliminate technical barriers to trade and better promote trade, exchanges and technical cooperation.
Test methods for building sealing materials
Part 21.After artificially accelerated weathering
Determination of color change
1 Scope
This document specifies the terms and definitions, principles, test strips of the method for determining the color change of building sealants after artificially accelerated weathering
Parts, test utensils and materials, preparation and maintenance of test pieces, test procedures, color measurement and color difference calculation, classification of discoloration grades and test reports.
This document applies to the determination of the color change of architectural sealants after artificially accelerated weathering and the division of the discoloration grade.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 3978 Standard Illuminator and Geometric Conditions
GB/T 3979-2008 Measurement method of object color
GB/T 5698 Color Terms
GB/T 7921-2008 Uniform color space and color difference formula
GB/T 8170-2008 Numerical Rounding Rules and Representation and Judgment of Limit Values
GB/T 9086 Standard whiteboard for colorimetric and photometric measurement
GB/T 13477.1 Test methods for building sealing materials - Part 1.Requirements for test substrates
GB/T 14682 Terms of Building Sealing Materials
GB/T 16422.2-2014 Plastics Laboratory Light Source Exposure Test Method Part 2.Xenon Arc Lamp
JC/T 2128 Ultra-white float glass
3 Terms and Definitions
The terms and definitions defined in GB/T 3978, GB/T 5698, and GB/T 14682 apply to this document.
4 Principles
The sealant was made into a test piece, and the color difference value of the test piece before and after artificial accelerated weathering was used to characterize the degree of color change of the test piece.
5 Test conditions
5.1 Laboratory Standard Test Conditions
Temperature (23±2)℃, relative humidity (50±5)%.
5.2 Specimen placement conditions
Standard laboratory test conditions for clean, ventilated, protected from light that do not contain chemicals that may cause discoloration of the sealant.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 13477.21-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 13477.21-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 13477.21-2022_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 13477.21-2022_English will be deemed to be sold to your employer/organization who actually pays 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+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|