JC/T 620-2021 PDF English
US$125.00 · In stock · Download in 9 secondsJC/T 620-2021: Sampling method for lime Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid JC/T 620: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| JC/T 620-2021 | English | 125 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Sampling method for lime
| Valid |
| JC/T 620-2009 | English | 279 |
Add to Cart
|
3 days
|
Sampling method of lime
| Obsolete |
| JC/T 620-1996 | English | 239 |
Add to Cart
|
2 days
|
Sampling method for lime.
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: JC/T 620-2021
JC/T 620-2021: Sampling method for lime---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/JCT620-2021
JC
BUILDING INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 91.100.10
CCS Q 27
Replacing JC/T 620-2009
Sampling method for lime
Issued on. MARCH 05, 2021
Implemented on. JULY 01, 2021
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Sampling tools... 6
5 Sampling site and sampling location... 6
6 Total sampling... 7
7 Sampling steps... 7
8 Sample preparation... 9
9 Packaging and storage... 9
10 Sampling sheet... 9
Appendix A (Informative) Lime sampler... 10
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents"
This document replaces JC/T 620-2009.Compared with JC/T 620-2009, in
addition to structural adjustments and editorial changes, the main technical
changes are as follows.
a) ADD the scope (see Chapter 1);
b) In terms and definitions, CANCEL the "batch", "batch size", "number";
ADD the "automatic sampling" (see Chapter 2);
c) CANCEL the "batch size" (Chapter 4 of the 2009 edition);
d) In the sampling tools, ADD the automatic sampler; MOVE the lime
sampling tube and diagram of sampling shovel into the informative
appendix A; MODIFY the diameter of sampling tube (see Chapter 4; 5.1
of the 2009 edition);
e) COMBINE the sampling site and sampling location; MODIFY the
requirements for sampling location (see Chapter 5; 5.2 and 5.3 of the 2009
edition);
f) MODIFY the “sampling method” into “sampling procedure”; MODIFY the
classification of sampling locations (see Chapter 7; 5.5 of the 2009 edition);
g) MODIFY the packaging and storage (see Chapter 9; 5.7 of the 2009
edition);
h) ADD the Appendix A.
Please note that some of the contents of this document may involve patents.
The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Building Materials Federation.
This document shall be under the jurisdiction of the National Technical
Committee for Standardization of Building Materials for Walls, Roofs and Roads
(SAC/TC 285).
Responsible drafting organizations of this document. Henan Building Materials
Research and Design Institute Co., Ltd., Luoyang Huanghe Tongli Cement Co.,
Ltd.
Participated drafting organizations of this document. Henan Pingyuan Tongli
Building Material Co., Ltd., Zhumadian City Yulong Tongli Cement Co., Ltd.
The main drafters of this document. Yin Qingya, Xia Lei, Chai Dengjie, Lou
Guanghui, Duan Aiping, Chen Xuetang, Li Jiafei, Zhang Mengzhen, Jiang Rui,
Chen Kezheng, Huang Qiang, Li Guowang, Zhang Bin.
This standard replaces the standard previously issued as follows.
- JC/T 620-1996, JC/T 620-2009.
Sampling method for lime
1 Scope
This document specifies the terms and definitions, sampling tools, sampling
sites and locations, total sampling size, sampling procedures, sample
preparation, packaging and storage, sampling sheets, of lime sampling.
This document is applicable to the inspection sampling of the production and
use of quicklime, quicklime powder, slaked lime powder.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated documents, only the versions
with the dates indicated are applicable to this document; for the undated
documents, only the latest version (including all the amendments) is applicable
to this standard.
JC/T 619 Terms for lime
3 Terms and definitions
The terms and definitions as defined in JC/T 619, as well as the following terms
and definitions, apply to this document.
3.1
Manual sampling
Collection of lime samples by the use of manual sampling tools.
3.2
Automatic sampling
Collection of lime samples by the use of an autosampler.
3.3
Unit sample
A lime sample, which is taken from a point or part of each inspection lot,
according to the specified amount.
3.4
Composite sample
A sample, which is obtained by taking the specified volume of all the unit
lime samples, that are obtained from an inspection lot, after uniformly and
thoroughly mixing them.
4 Sampling tools
4.1 Material of sampling tool
The sampling tools shall be made of materials, that do not chemically react with
lime, such as stainless steel.
4.4 Autosampler
Used for automatic sampling of powdered lime. Refer to Appendix A.3 for
commonly used autosamplers.
5 Sampling site and sampling location
5.1 The sampling site shall be representative. The sampling shall not be carried
out in rainwater OR in a heavily polluted environment.
5.2 The sampling of lime production inspection should be at the following
locations.
5.3 Sampling for lime use inspection should be at the following locations.
6 Total sampling
The total amount of quicklime, which is sampled for each inspected lime
inspection lot, shall not be less than 24 kg; the total amount of quicklime powder
and slaked lime powder sampled shall not be less than 5 kg.
7 Sampling steps
7.1 Sampling from storage yards, warehouses, vehicles (ships)
Use ordinary pointed steel shovel or I-type manual sampling shovel for
sampling. Randomly select 12 sampling points, from different parts of each
inspection lot.
7.2 Sampling at the inlet and outlet of conveyor belts, lime silos, bulk
trucks
For lumpy lime, use I-type manual sampling shovel or ordinary pointed steel
shovel to take sample. From the flowing quicklime of each inspection lot, take
12 unit samples at regular intervals; each sample is not less than 2 kg. If there
is a large block, which has the largest size greater than 100 mm, in the sampling
point, it shall be processed in accordance with 7.1.
7.3 Sampling at the outlet of the lime kiln
Select the appropriate sampling location, according to the discharge method of
the lime kiln's discharge port AND the lime temperature; proceed according to
7.2.
7.4 Sampling in bags
For bags of lime not more than 100 kg, randomly take 10 bags from each
inspection lot (the bags shall be intact). Use the manual sampling tubes for
sampling. Insert the sampling tube, obliquely from the opening of the bag, to an
appropriate depth, in the bag. Take out a tube of lime. The sampling volume of
each bag of lime shall not be less than 0.5 kg.
8 Sample preparation
8.1 Composite sample
The unit samples, which are obtained from each inspection lot, shall be
uniformly mixed, immediately after unpacking. Use the quartering method to
reduce it.
8.2 Test sample and retained sample
Divide the reduced mixed sample equally, one is the test sample AND the other
is the retained sample.
9 Packaging and storage
9.1 The obtained test sample and retained sample shall be stored immediately
in a clean, dry, moisture-proof container, that does not affect the performance
of lime, AND sealed.
10 Sampling sheet
After the sample is obtained, the person in charge of sampling shall fill in the
sampling sheet. The sampling sheet shall include at least the following.
JC/T 620-2021
JC
BUILDING INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 91.100.10
CCS Q 27
Replacing JC/T 620-2009
Sampling method for lime
Issued on. MARCH 05, 2021
Implemented on. JULY 01, 2021
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Sampling tools... 6
5 Sampling site and sampling location... 6
6 Total sampling... 7
7 Sampling steps... 7
8 Sample preparation... 9
9 Packaging and storage... 9
10 Sampling sheet... 9
Appendix A (Informative) Lime sampler... 10
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents"
This document replaces JC/T 620-2009.Compared with JC/T 620-2009, in
addition to structural adjustments and editorial changes, the main technical
changes are as follows.
a) ADD the scope (see Chapter 1);
b) In terms and definitions, CANCEL the "batch", "batch size", "number";
ADD the "automatic sampling" (see Chapter 2);
c) CANCEL the "batch size" (Chapter 4 of the 2009 edition);
d) In the sampling tools, ADD the automatic sampler; MOVE the lime
sampling tube and diagram of sampling shovel into the informative
appendix A; MODIFY the diameter of sampling tube (see Chapter 4; 5.1
of the 2009 edition);
e) COMBINE the sampling site and sampling location; MODIFY the
requirements for sampling location (see Chapter 5; 5.2 and 5.3 of the 2009
edition);
f) MODIFY the “sampling method” into “sampling procedure”; MODIFY the
classification of sampling locations (see Chapter 7; 5.5 of the 2009 edition);
g) MODIFY the packaging and storage (see Chapter 9; 5.7 of the 2009
edition);
h) ADD the Appendix A.
Please note that some of the contents of this document may involve patents.
The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Building Materials Federation.
This document shall be under the jurisdiction of the National Technical
Committee for Standardization of Building Materials for Walls, Roofs and Roads
(SAC/TC 285).
Responsible drafting organizations of this document. Henan Building Materials
Research and Design Institute Co., Ltd., Luoyang Huanghe Tongli Cement Co.,
Ltd.
Participated drafting organizations of this document. Henan Pingyuan Tongli
Building Material Co., Ltd., Zhumadian City Yulong Tongli Cement Co., Ltd.
The main drafters of this document. Yin Qingya, Xia Lei, Chai Dengjie, Lou
Guanghui, Duan Aiping, Chen Xuetang, Li Jiafei, Zhang Mengzhen, Jiang Rui,
Chen Kezheng, Huang Qiang, Li Guowang, Zhang Bin.
This standard replaces the standard previously issued as follows.
- JC/T 620-1996, JC/T 620-2009.
Sampling method for lime
1 Scope
This document specifies the terms and definitions, sampling tools, sampling
sites and locations, total sampling size, sampling procedures, sample
preparation, packaging and storage, sampling sheets, of lime sampling.
This document is applicable to the inspection sampling of the production and
use of quicklime, quicklime powder, slaked lime powder.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated documents, only the versions
with the dates indicated are applicable to this document; for the undated
documents, only the latest version (including all the amendments) is applicable
to this standard.
JC/T 619 Terms for lime
3 Terms and definitions
The terms and definitions as defined in JC/T 619, as well as the following terms
and definitions, apply to this document.
3.1
Manual sampling
Collection of lime samples by the use of manual sampling tools.
3.2
Automatic sampling
Collection of lime samples by the use of an autosampler.
3.3
Unit sample
A lime sample, which is taken from a point or part of each inspection lot,
according to the specified amount.
3.4
Composite sample
A sample, which is obtained by taking the specified volume of all the unit
lime samples, that are obtained from an inspection lot, after uniformly and
thoroughly mixing them.
4 Sampling tools
4.1 Material of sampling tool
The sampling tools shall be made of materials, that do not chemically react with
lime, such as stainless steel.
4.4 Autosampler
Used for automatic sampling of powdered lime. Refer to Appendix A.3 for
commonly used autosamplers.
5 Sampling site and sampling location
5.1 The sampling site shall be representative. The sampling shall not be carried
out in rainwater OR in a heavily polluted environment.
5.2 The sampling of lime production inspection should be at the following
locations.
5.3 Sampling for lime use inspection should be at the following locations.
6 Total sampling
The total amount of quicklime, which is sampled for each inspected lime
inspection lot, shall not be less than 24 kg; the total amount of quicklime powder
and slaked lime powder sampled shall not be less than 5 kg.
7 Sampling steps
7.1 Sampling from storage yards, warehouses, vehicles (ships)
Use ordinary pointed steel shovel or I-type manual sampling shovel for
sampling. Randomly select 12 sampling points, from different parts of each
inspection lot.
7.2 Sampling at the inlet and outlet of conveyor belts, lime silos, bulk
trucks
For lumpy lime, use I-type manual sampling shovel or ordinary pointed steel
shovel to take sample. From the flowing quicklime of each inspection lot, take
12 unit samples at regular intervals; each sample is not less than 2 kg. If there
is a large block, which has the largest size greater than 100 mm, in the sampling
point, it shall be processed in accordance with 7.1.
7.3 Sampling at the outlet of the lime kiln
Select the appropriate sampling location, according to the discharge method of
the lime kiln's discharge port AND the lime temperature; proceed according to
7.2.
7.4 Sampling in bags
For bags of lime not more than 100 kg, randomly take 10 bags from each
inspection lot (the bags shall be intact). Use the manual sampling tubes for
sampling. Insert the sampling tube, obliquely from the opening of the bag, to an
appropriate depth, in the bag. Take out a tube of lime. The sampling volume of
each bag of lime shall not be less than 0.5 kg.
8 Sample preparation
8.1 Composite sample
The unit samples, which are obtained from each inspection lot, shall be
uniformly mixed, immediately after unpacking. Use the quartering method to
reduce it.
8.2 Test sample and retained sample
Divide the reduced mixed sample equally, one is the test sample AND the other
is the retained sample.
9 Packaging and storage
9.1 The obtained test sample and retained sample shall be stored immediately
in a clean, dry, moisture-proof container, that does not affect the performance
of lime, AND sealed.
10 Sampling sheet
After the sample is obtained, the person in charge of sampling shall fill in the
sampling sheet. The sampling sheet shall include at least the following.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of JC/T 620-2021 be delivered?Answer: The full copy PDF of English version of JC/T 620-2021 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 JC/T 620-2021_English with my colleagues?Answer: Yes. The purchased PDF of JC/T 620-2021_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+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- JC/T 620-2021 -- 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. Question 5: Should I purchase the latest version JC/T 620-2021?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JC/T 620-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. How to buy and download a true PDF of English version of JC/T 620-2021?A step-by-step guide to download PDF of JC/T 620-2021_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 "JC/T 620-2021".
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 |