GB/T 8141-2009 English PDF

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GB/T 8141-2009: Shellac for use in arms
Status: Valid

GB/T 8141: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8141-2009	139	Add to Cart	3 days	Shellac for use in arms	Valid
GB/T 8141-1987	RFQ	ASK	3 days	Shellac used for arms	Obsolete

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GB/T 24797.2   GB/T 8140   GB/T 18011   GB/T 8146   GB/T 8145   GB/T 8137   

Basic data

Standard ID: GB/T 8141-2009 (GB/T8141-2009)
Description (Translated English): Shellac for use in arms
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B72
Classification of International Standard: 87.040
Word Count Estimation: 6,652
Date of Issue: 3/28/2009
Date of Implementation: 10/1/2009
Older Standard (superseded by this standard): GB/T 8141-1987
Quoted Standard: GB/T 8142-2008; GB/T 8143-2008
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
Summary: This standard specifies the technical requirements of the military shellac, sampling, test methods, inspection rules and signs, packaging, storage and transport. This standard applies to high-quality natural collagen purple rubber as raw material, hot filtration, solvent processing for military production department dedicated shellac.

GB/T 8141-2009: Shellac for use in arms

---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.
Shellac for use in arms ICS 87.040 B72 National Standards of People's Republic of China Replacing GB/T 8141-1987 Military suet film 2009-03-28 release 2009-10-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard replaces GB/T 8141-1987 "military suet film". This standard and GB/T 8141-1987 compared to the main changes are as follows. - Chapter 1 "Definitions" is modified to "Scope"; --- increase the normative reference documents; --- delete the technical requirements will be measured, the requirements of the test; --- increase the technical requirements of the "ash", "rosin", "female" indicators and requirements; --- adjust the technical requirements of the "color index" indicators required value; --- Added Chapter 4 "Sampling" to remove the contents of the inspection rules; - to increase the inspection rules in the inspection classification and inspection items; --- increase the storage and transportation of the ambient temperature requirements; --- increase the storage time requirements. This standard is proposed by the State Forestry Administration. This standard by the Chinese Academy of Forestry Institute of Forestry Chemical Industry Institute of centralized. This standard is responsible for drafting units. Institute of Forest Products and Chemical Industry, Chinese Academy of Forestry. The main drafters of this standard. Wang Yongmei, Chen Jiahong, Wu Dongmei, Wu Zaisong, Xu Man. This standard replaced the previous version of the standard release. --- GB/T 8141-1987. Military suet film

1 Scope

This standard specifies the technical requirements, sampling, test methods, inspection rules and marking, packaging, storage and transportation of military suet films. This standard applies to high-quality natural shellac gum as raw material, with hot filter, solvent processing for the military production sector dedicated purple film.

2 normative reference documents

The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard. Methods for sampling of shellac products GB/T 8142-2008 Test method for the product of the shellac product GB/T 8143-2008

3 technical requirements

Military suet film should meet the technical requirements given in Table 1. Table 1 Technical requirements for military suet film Indicator name requirements Moisture /% ≤ 2.0 Color index/number ≤ 18 Hot ethanol insoluble matter /% ≤ 1.0 Thermal hardening time (170 ° C ± 0.5 ° C)/min 3 ~ 5 Softening point/℃ ≥ 75 Water extract acidity (pH) 4.8 ~ 7.0 Waxy /% 1.5 ~ 4.0 Water soluble /% ≤ 0.5 Acid value/(mg/g) ≤ 73 Iodine value (g/100g) ≤ 20 Ash ≤ 0.4 Rosin may not be detected Female may not be detected Note. Military suet film should not contain other additives, if there are special requirements for further consultation.

4 Sampling

Sampling and sample preparation according to GB/T 8142-2008. ......

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