|
US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41077-2021: Thermal insulating products for building applications - Limit value of hexabromocyclododecanes
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 41077-2021 | English | 229 |
Add to Cart
|
3 days [Need to translate]
|
Thermal insulating products for building applications - Limit value of hexabromocyclododecanes
| Valid |
GB/T 41077-2021
|
PDF similar to GB/T 41077-2021
Basic data | Standard ID | GB/T 41077-2021 (GB/T41077-2021) | | Description (Translated English) | Thermal insulating products for building applications - Limit value of hexabromocyclododecanes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q25 | | Word Count Estimation | 11,179 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41077-2021: Thermal insulating products for building applications - Limit value of hexabromocyclododecanes
---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.
Thermal insulating products for building applications -- Limit value of hexabromocyclododecanes
ICS 59:100:10
CCSQ25
National Standards of People's Republic of China
Limits of hexabromocyclododecane for thermal insulation products in buildings
Published on 2021-12-31
2022-01-01 Implementation
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:
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 Thermal Insulation Materials (SAC/TC191):
This document is drafted by: Nanjing Fiberglass Research and Design Institute Co:, Ltd:, Nanjing National Materials Testing Co:, Ltd:, Anhui Zhonglian Green Building Steel Structure
Technology Co:, Ltd:, Beijing Building Materials Inspection and Research Institute Co:, Ltd:, Guangzhou No: 3 Building Decoration Co:, Ltd:, Dongfang Construction Group Co:, Ltd:
company:
The main drafters of this document: Li Yong, Wang Ling, Cui Jun, Wang Xu, Jiang Lu, Yang Guipeng, Li Wei, Dai Yunxiang, Chen Yongjian, Dai Yongjie, Wang Xiaoli,
Liang Jinglun, Zou Yanjun, Li Dongfang:
Limits of hexabromocyclododecane for thermal insulation products in buildings
1 Scope
This document specifies limits and test methods for hexabromocyclododecane (HBCD) in thermal insulation articles:
This document applies to the determination of hexabromocyclododecane in thermal insulation products such as molded polystyrene foam and extruded polystyrene foam:
Other materials can refer to the implementation:
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 4132 Thermal Insulation Materials and Related Terms
GB/T 6682 Analysis Laboratory Water Specifications and Test Methods
3 Terms and Definitions
GB/T 4132 and the following terms and definitions apply to this document:
3:1
Hexabromocyclododecanes; HBCD
Molecular formula is C12H18Br6, relative molecular mass is 642, white crystal, bromine content is 74:7%, mainly used as polystyrene and other organic
flame retardant material:
Note: It usually contains three isomers of α, β and γ, see Figure 1:
Figure 1 Three kinds of identical and differentiated components
3:2
Sample spiked recovery samplesspikedrecovery
Take two copies of the same sample, one of which is added with the quantitative standard substance of the component to be tested;
Subtract the result obtained from the standard part minus the result obtained by the unspiked part, and the difference is the percentage of the theoretical value added to the standard material:
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 41077-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 41077-2021_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 41077-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 41077-2021_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.
|