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GB/T 14074-2017 English PDF

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GB/T 14074-2017: Testing methods for wood adhesives and their resins
Status: Valid

GB/T 14074: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 14074-2017English599 Add to Cart 7 days [Need to translate] Testing methods for wood adhesives and their resins Valid GB/T 14074-2017
GB/T 14074-2006EnglishRFQ ASK 5 days [Need to translate] Test methods for wood adhesives and resins Obsolete GB/T 14074-2006
GB/T 14074.1-1993English199 Add to Cart 2 days [Need to translate] Testing methods for wood adhesives amd their resins - Method for determination of appearance Obsolete GB/T 14074.1-1993

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Basic data

Standard ID GB/T 14074-2017 (GB/T14074-2017)
Description (Translated English) Testing methods for wood adhesives and their resins
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G38
Classification of International Standard 83.180
Word Count Estimation 30,390
Date of Issue 2017-12-29
Date of Implementation 2018-07-01
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 14074-2017: Testing methods for wood adhesives and their resins

---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.
Testing methods for wood adhesives and their resins ICS 83.180 G38 National Standards of People's Republic of China Replacing GB/T 14074-2006 Wood industrial adhesives and resin test methods 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 test method 2 3.1 Appearance inspection 2 3.2 Density Determination 2 3.3 Determination of viscosity 3 3.4 pH measurement 4 3.5 Determination of solid content 5 3.6 Water Mixture Determination 6 3.7 Determination of curing time 7 3.8 Determination of the applicable period 8 3.9 Determination of storage stability 9 3.10 Determination of the bonding strength and bond strength 10 3.11 Determination of moisture content 11 3.12 Determination of gel time 12 3.13 Determination of free phenol content 14 3.14 can be bromide content determination 16 3.15 Determination of alkali 17 3.16 Determination of free formaldehyde 20 3.17 hydroxymethyl content determination 24 3.18 Determination of precipitation temperature 25

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 14074-2006 "wood adhesives and resin testing methods." This standard compared with GB/T 14074-2006, the main technical changes are as follows. --- Modify the determination of the gel time and the use of formaldehyde formaldehyde free formaldehyde test range (see Chapter 1); --- Modify the viscosity of the constant temperature bath temperature (see 3.3.3.2); --- Modify the principle of pH determination (see 3.4.1); --- Modify the determination of water mixed determination of the conditions (see 3.6.1); --- Replace the curing time determination of the instruments and devices (see 3.7.1); --- gluing strength and internal bonding strength increased in the determination of three types of plywood bonding strength and test pieces and strength test (See 3.10.1); --- "bond strength and internal bond strength test report added" tree species "(see 3.10.3); --- Modify the determination of free phenol and hydroxymethyl content of Na2S2O3 standard solution concentration (see 3.13.3.6 and 3.17.3.4); --- Revised phenolic resin in the determination of free formaldehyde content of reagents and solutions, equipment and procedures for the operation (see 3.16.1); --- Modify the urea formaldehyde, melamine modified urea formaldehyde resin free formaldehyde content determination formula (see 3.16.2.5.1). This standard proposed by the State Forestry Administration. This standard by the National Panel Standardization Technical Committee (SAC/TC198) centralized. This standard was drafted unit. South China Agricultural University, Guangzhou Changan viscose Manufacturing Co., Ltd., Guangzhou City, good good decorative materials limited Company, Linyi Xin Yan Chemical Co., Ltd., Guangzhou Guanghe Adhesives Co., Ltd., Tak Wah Bunny New Decoration Materials Co., Ltd., Zhejiang Sheng Huayunfeng new material Co., Ltd., Deqing County Yunfeng Central good Technology Co., Ltd., Henan Yongwei Security Co., Ltd., Zhejiang Liangyou Mu Industry Co., Ltd. The main drafters of this standard. Gao Zhenzhong, Huang Zhiping, Zheng Yuhua, Zhang Yuejun, Su Hongbin, Zhan Xianxu, Pang Xiaoren, Li Qiang, Xu Minghua, Ge Xiaohai, Sun Jin, Wang Xiaobo, Wang Zhizhen. This standard replaces the standards previously issued as. --- GB/T 14074-1993, GB/T 14074-2006. Wood industrial adhesives and resin test methods

1 Scope

This standard specifies the timber industry adhesives and resin testing methods. This standard 3.1,3.2,3.3,3.4,3.5 for wood adhesives used in industrial adhesives melamine modified urea-formaldehyde resin, phenolic resin, trimerization Cyanamide formaldehyde resin - Determination of appearance, density, viscosity, pH value and solid content. This standard 3.6 for wood adhesives for industrial use water-soluble phenolic resin and melamine modified urea-formaldehyde resin water mixed Determination. This standard 3.7, 3.8, 3.17, 3.18 for wood industrial adhesives with melamine modified urea-formaldehyde resin curing time, apply Determination of hydroxymethyl content and precipitation temperature. This standard 3.9 is suitable for the determination of the storage stability of melamine modified urea-formaldehyde resin and phenolic resin for wood industrial adhesives. This standard 3.10.1 applies to the wood industry adhesive with melamine modified urea-formaldehyde resin, phenolic resin produced plywood glue Determination of cohesion; 3.10.2 of this standard is applicable to the wood industry adhesive with urea-formaldehyde resin and phenolic resin production of medium density fiberboard And particleboard internal bond strength determination. This standard 3.11 is applicable to the determination of moisture content of alcohol-soluble phenolic resin for wood industrial adhesives. 3.12 of this standard is applicable to the determination of soluble and low melting point phenolic resin gel time for wood industrial adhesives; not suitable For the gel time is too short, such as phenolic resin powder, phenolic resin can not be self-curing resin and contains a large number of low-boiling point solvent tree Determination of lipid gel time. The gel time in the presence of a catalyst can be determined. The catalyst can be added in a fixed ratio, the use of catalytic Agent Curing Gel Time The type of curing agent used and sample handling methods should be described in the report. This standard 3.13 is applicable to the determination of free phenol content of phenolic resin used in wood industrial adhesives. This standard 3.14 is applicable to the determination of the content of bromide in water-soluble phenolic resin for wood industrial adhesives. This standard 3.15 is applicable to the determination of the alkali content of water-soluble phenolic resin used in wood industrial adhesives. This standard 3.16.1 applies to the wood-based industrial adhesives free formaldehyde content of not more than 15% of the formaldehyde free formaldehyde Determination of the amount. This standard 3.16.2 applies to the determination of free formaldehyde content of urea formaldehyde and melamine modified urea formaldehyde resin for wood industrial adhesives, This method is not applicable to the determination of free formaldehyde content of phenolic resin modified furan resin.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. Particleboard GB/T 4897-2015 General principles of sampling of chemical products GB/T 6678-2003 General principles of sampling for liquid chemical products GB/T 6680-2003 Laboratory use specifications and test methods for analysis GB/T 6682-2008 GB/T 9724-2007 Chemical reagents - Determination of pH GB/T 9846-2015 ordinary plywood Medium density fiberboard Testing methods of physical and chemical properties of wood - based panels and veneer wood - based panels

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