| 測力類型：剝離力測試機 | 品牌：標準砝碼5g | 型號：5g |
| 類型：指針式測力機表 | 測量范圍：5g（N） | 測量精度：99% |
| 外形尺寸：5g天平砝碼（mm） | 重量：5g（kg） | 應用范圍：電氣,日常 |
| 加工定制：否 | 產品型號：校準砝碼5g | |
ng>型號：5g標準砝碼ng>
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ng>砝碼的相關知識ng>
ng>砝碼是 放在天平的一端作為重量標準的金屬塊或金屬片，大小不一，各有一定重量。具有給定質量和規定形狀的實物量具。供檢定衡器和在衡器上進行衡量時使用。砝碼必須與天平或秤相結合（用於秤上的砝碼常稱為砣），才能用於測定其他物體的質量，故它是一種從屬的實物量具。ng>ng>
ng>ng> 中國在夏代即出現相當於砝碼的“權”。此後的4000多年間，不同朝代有不同形狀和材質的“權”作為衡量的量具。ng>ng>
ng>ng> 在現代質量計量中，砝碼是質量量值傳遞的標準量具。質量量值以保存在法國國際計量局的鉑銥合金千克原器實物為唯一基準器。各國均將砝碼分為國傢千克基準、國傢千克副基準、千克工作基準，以及由千克的倍量和分量構成的工作基準組和各等工作標準砝碼。ng>ng>
ng>ng> 國傢千克基準各國均隻有一個。中國的國傢千克基準是1965年由國際計量局檢定、編號為60的鉑銥合金千克基準砝碼。國傢千克基準與國傢作證基準、國傢千克副基準、千克工作基準、標準砝碼組成質量量值傳遞系統。為衡量各種不同質量的物體，千克工作基準配有一套由其倍量和分量組成的、質量由大到小、個數最少而又能組成任何量值的工作基準組。工作基準組及標準砝碼通常分為千克組（1～20kg）、克組 （1～50g）和毫克組（1～500mg），根據需要還可以有微克組或其他種砝碼組合（如在臺秤上采用的增砣組）。ng>
ng> ng>ng>基準砝碼和標準砝碼是計量部門用於質量值傳遞的，準確度符合計量規程要求的一類砝碼和部稱。我國的基準砝碼分為以下ng>ng>9ng>ng>種：國傢公斤原器、國傢作證原器、國傢公斤副基準砝碼、公斤工作基準砝碼、公斤組工作基準砝碼、克組工作基準砝碼、克工作基準砝碼、毫克組工作基準砝碼、微克組工作基準砝碼。ng>
ng>OIMLng>ng>允差表 (±mg)ng> |
ng>Weight classng> | ng>Eng>ng>1ng> | ng>Eng>ng>2ng> | ng>Fng>ng>1ng> | ng>Fng>ng>2ng> | ng>Mng>ng>1ng> | ng>Mng>ng>2ng> |
ng>2000kgng> | ng> ng> | ng> ng> | ng>10000ng> | ng>30000ng> | ng>100000ng> | ng>300000ng> |
ng>1000kgng> | ng> ng> | ng>1600ng> | ng>5000ng> | ng>16000ng> | ng>50000ng> | ng>160000ng> |
ng>500kgng> | ng> ng> | ng>800ng> | ng>2500ng> | ng>8000ng> | ng>25000ng> | ng>80000ng> |
ng>200kgng> | ng> ng> | ng>300ng> | ng>1000ng> | ng>3000ng> | ng>10000ng> | ng>30000ng> |
ng>100kgng> | ng> ng> | ng>160ng> | ng>500ng> | ng>1600ng> | ng>5000ng> | ng>16000ng> |
ng>50kgng> | ng>25ng> | ng>80ng> | ng>250ng> | ng>800ng> | ng>2500ng> | ng>8000ng> |
ng>20kgng> | ng>10ng> | ng>30ng> | ng>100ng> | ng>300ng> | ng>1000ng> | ng>3000ng> |
ng>10kgng> | ng>5ng> | ng>16ng> | ng>50ng> | ng>160ng> | ng>500ng> | ng>1600ng> |
ng>5kgng> | ng>2.5ng> | ng>8ng> | ng>25ng> | ng>80ng> | ng>250ng> | ng>800ng> |
ng>2kgng> | ng>1ng> | ng>3ng> | ng>10ng> | ng>30ng> | ng>100ng> | ng>300ng> |
ng>1kgng> | ng>0.5ng> | ng>1.6ng> | ng>5ng> | ng>16ng> | ng>50ng> | ng>160ng> |
ng>500gng> | ng>0.25ng> | ng>0.8ng> | ng>2.5ng> | ng>8ng> | ng>25ng> | ng>80ng> |
ng>200gng> | ng>0.1ng> | ng>0.3ng> | ng>1ng> | ng>3ng> | ng>10ng> | ng>30ng> |
ng>100gng> | ng>0.05ng> | ng>0.16ng> | ng>0.5ng> | ng>1.6ng> | ng>5ng> | ng>16ng> |
ng>50gng> | ng>0.03ng> | ng>0.1ng> | ng>0.3ng> | ng>1ng> | ng>3ng> | ng>10ng> |
ng>20gng> | ng>0.025ng> | ng>0.08ng> | ng>0.25ng> | ng>0.8ng> | ng>2.5ng> | ng>8ng> |
ng>10gng> | ng>0.02ng> | ng>0.06ng> | ng>0.2ng> | ng>0.6ng> | ng>2ng> | ng>6ng> |
ng>5gng> | ng>0.016ng> | ng>0.05ng> | ng>0.16ng> | ng>0.5ng> | ng>1.6ng> | ng>5ng> |
ng>2gng> | ng>0.012ng> | ng>0.04ng> | ng>0.12ng> | ng>0.4ng> | ng>1.2ng> | ng>4ng> |
ng>1gng> | ng>0.01ng> | ng>0.03ng> | ng>0.1ng> | ng>0.3ng> | ng>1ng> | ng>3ng> |
ng>砝碼是以固定形式復現給定質量值的實物量具，對它的結構特性（形狀、尺寸、材料、表麵品質等）和計量特性（標稱值、允差等）均有嚴格規定，隻有借助於天平或秤這些衡器，才能測定物體的質量。砝碼的標稱值，通常取ng>ng>1×10kng>ng>、ng>ng>2×10kng>ng>、ng>ng>5×10kng>ng>的系列，其中ng>ng>Kng>ng>為正整數、負整數或零。ng>
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