標(biāo)準(zhǔn)解讀

《GB/T 44914-2024 和田玉分級》是一項(xiàng)國家標(biāo)準(zhǔn),旨在為和田玉的質(zhì)量評價提供一套科學(xué)、統(tǒng)一的標(biāo)準(zhǔn)體系。該標(biāo)準(zhǔn)詳細(xì)規(guī)定了和田玉的分類依據(jù)及其質(zhì)量等級劃分方法,適用于和田玉原料及成品的質(zhì)量評估與市場交易。

根據(jù)此標(biāo)準(zhǔn),和田玉主要依據(jù)顏色、質(zhì)地、透明度、工藝等因素進(jìn)行綜合評價。其中,顏色被分為白玉、青白玉、青玉等多個類別;質(zhì)地則關(guān)注細(xì)膩程度、均勻性等特性;透明度方面,則是通過觀察玉石內(nèi)部結(jié)構(gòu)清晰度來判斷;至于工藝價值,則考慮到了雕刻技術(shù)對最終作品美觀度的影響。

在具體操作過程中,《GB/T 44914-2024 和田玉分級》還提供了詳細(xì)的檢測方法和技術(shù)要求,包括使用特定光源條件下的人工目測法以及借助專業(yè)儀器設(shè)備進(jìn)行輔助分析等方式。此外,對于不同級別的和田玉,該標(biāo)準(zhǔn)也給出了相應(yīng)的描述與示例圖片,便于使用者準(zhǔn)確理解和應(yīng)用。


如需獲取更多詳盡信息,請直接參考下方經(jīng)官方授權(quán)發(fā)布的權(quán)威標(biāo)準(zhǔn)文檔。

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文檔簡介

ICS390.060

CCSD59

中華人民共和國國家標(biāo)準(zhǔn)

GB/T44914—2024

和田玉分級

Hetianyugrading

2024?11?28發(fā)布2025?06?01實(shí)施

國家市場監(jiān)督管理總局

國家標(biāo)準(zhǔn)化管理委員會發(fā)布

GB/T44914—2024

目次

前言··························································································································Ⅲ

1范圍·······················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語和定義··············································································································1

4鑒定與分類··············································································································3

5分級要求·················································································································3

6和田玉顏色分級········································································································3

7和田玉質(zhì)地分級········································································································7

8和田玉凈度分級········································································································8

9和田玉均勻性分級·····································································································8

10和田玉工藝質(zhì)量評價································································································9

11和田玉分級證書······································································································9

12標(biāo)識····················································································································10

附錄A(資料性)和田玉觀察示意圖················································································11

GB/T44914—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分:標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由中華人民共和國自然資源部提出。

本文件由全國珠寶玉石標(biāo)準(zhǔn)化技術(shù)委員會(SAC/TC298)歸口。

本文件起草單位:四川省產(chǎn)品質(zhì)量監(jiān)督檢驗(yàn)檢測院、成都產(chǎn)品質(zhì)量檢驗(yàn)研究院有限責(zé)任公司、新疆

維吾爾自治區(qū)產(chǎn)品質(zhì)量監(jiān)督檢驗(yàn)研究院、國家珠寶玉石首飾檢驗(yàn)集團(tuán)有限公司、北京博觀國際拍賣有

限公司、廣東省珠寶玉石及貴金屬檢測中心、中國地質(zhì)大學(xué)(武漢)、北京菜市口百貨股份有限公司、深

圳市國玉天工實(shí)業(yè)有限公司、鎮(zhèn)平縣神圣工藝品股份有限公司。

本文件主要起草人:戴蘇蘭、陳大鵬、李新嶺、徐振華、曲蔚、喻云峰、楊立信、羅琴鳳、夏玉梅、徐速、

陳紅霞、張勇、胡瑤、馮曉燕、奧巖、楊明星、王春利、盧慧、王婧潔、李松盈、王柏宇、廖俊、王淑潔、劉姣、

馬釗、王鐸、徐澤彬、范越。

GB/T44914—2024

和田玉分級

1范圍

本文件規(guī)定了和田玉的鑒定與分類、分級要求、分級項(xiàng)目及分級方法、工藝質(zhì)量評價、分級證書、

標(biāo)識。

本文件適用于和田玉白玉、碧玉、黃玉產(chǎn)品分級。和田玉白玉、碧玉、黃玉原料分級參照執(zhí)行。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中,注日期的引用文

件,僅該日期對應(yīng)的版本適用于本文件;不注日期的引用文件,其最新版本(包括所有的修改單)適用于

本文件。

GB/T16553珠寶玉石鑒定

GB/T31912飾品標(biāo)識

GB/T36127玉雕制品工藝質(zhì)量評價

GB/T38821和田玉鑒定與分類

3術(shù)語和定義

下列術(shù)語和定義適用于本文件。

3.1

和田玉Hetianyu

由自然界產(chǎn)出,具有美觀、耐久、稀少性和工藝價值,能加工成飾品的透閃石礦物集合體,次要礦物

可為陽起石,可含少量方解石、透輝石、石墨、黃鐵礦、鉻鐵礦、磁鐵礦、石英、蛇紋石、綠泥石、綠簾石、硅

灰石、磷灰石和石榴石等礦物。折射率1.60~1.61(點(diǎn)測),密度2.95(+0.15,-0.05)g/cm3。

[來源:GB/T38821—2020,3.1,有修改]

3.2

白玉Baiyu

主體顏色呈白色的和田玉,可帶有輕微的其他色調(diào)。

[來源:GB/T38821—2020,3.3,有修改]

3.3

羊脂白玉YangzhiBaiyu

顏色級別、質(zhì)地級別、凈度級別、均勻度級別均為A級的白玉。

3.4

碧玉Biyu

主體顏色呈淺至深的綠、灰綠

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