LY/T 1325: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| LY/T 1325-2012 | English | 239 |
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3 days [Need to translate]
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Box myrtle bark
| Obsolete |
LY/T 1325-2012
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| LY/T 1325-1999 | English | 199 |
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Hairy bayberry bark
| Obsolete |
LY/T 1325-1999
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PDF similar to LY/T 1325-2012
Basic data | Standard ID | LY/T 1325-2012 (LY/T1325-2012) | | Description (Translated English) | Box myrtle bark | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B72 | | Classification of International Standard | 65.020.99 | | Word Count Estimation | 6,690 | | Older Standard (superseded by this standard) | LY/T 1325-1999 | | Quoted Standard | LY/T 1083 | | Regulation (derived from) | State Forestry Administration Notice 2012 No. 5; industry standard filing Notice 2012 No. 4 (No. 148 overall) | | Issuing agency(ies) | State Forestry Administration | | Summary | This standard specifies the technical requirements of Mao bayberry bark, sampling, test methods, inspection rules, packaging, labeling, storage and transportation. This standard applies to the production of raw wool bayberry bark tannin. | LY/T 1325-2012: Box myrtle bark---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.
Box myrtle bark
ICS 65.020.99
B72
People's Republic of China Forestry Industry Standard
Replacing LY/T 1325-1999
Boxwood bark
Published on.2012-02-23
2012-07-01 implementation
State Forestry Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces LY/T 1325-1999 "Maoyang Bark", compared with LY/T 1325-1999, the main changes are as follows.
---Adjusted the structure of the standard, and added chapters of "normative reference documents", "terms and definitions", and "sampling";
--- Revised the division of grades in technical indicators, first-class and second-level to first-class products, qualified products;
--- Appearance trait content is incorporated into the appearance characteristics of Table 1 of the technical indicators;
--- Increased total extracts;
--- Revised the rules of the acceptance rules.
This standard is proposed and managed by the Institute of Chemical Industry of Forest Products of the Chinese Academy of Forestry.
This standard was drafted. Institute of Chemical Industry of Forest Products of Chinese Academy of Forestry, Guangxi Wuming Rubber Factory, Guangxi Baise Forest Chemical Plant,
Guangxi Academy of Forestry.
The main drafters of this standard. Wang Yumei, Chen Yuhong, Wu Dongmei, Xu Man, Zhang Liangliang, Lu Mingzhao, Chen Xiaocheng, Zhou Lizhu.
The previous versions of the standards replaced by this standard are.
---GB 7646-1987;
---LY/T 1325-1999.
Boxwood bark
1 Scope
This standard specifies the technical requirements, sampling, test methods, inspection rules, packaging, marking, storage and transportation of the bark of the bayberry.
This standard applies to the raw bark of the production of eucalyptus gum.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
LY/T 1083 Silicone raw material analysis test method
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Myricaesculenta Buch (-Ham.) is a perennial evergreen tree of the genus Arbutus, whose bark is used to produce Maoyang.
Plum gum.
4 Technical requirements
The technical indicators of the bark of the bayberry should meet the requirements of Table 1.
Table 1 Technical indicators of the bark of the bayberry
Index name first-class quality products
Appearance feature
The outer surface is rough, with lateral wrinkles and irregular longitudinal cracks, which are grayish brown or grayish yellow. Does the inner surface have
Obvious grooved edge, brown. The inner and outer skin boundaries are curved and undulating, and occasionally the local dermal tissue is surrounded by the endothelium;
Visible to the eye, sand-like. Broken and crisp
Fresh, no mildew. The cross-section is light brown and relatively fresh, with some mildew spots. Folded brown
Moisture /% ≤ 17.0
Total extract /% ≥ 34.0 28.0
Tannin (dry basis) /% ≥ 24.0 17.0
Total color (Rovibond) ≤ 25.0 37.0
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